It seems to also send the actual sound samples though.

Ex Shazam tech here. The signatures that the Shazam app sends are very small, so bandwith costs should be minimal. Of course, I speaking about the technology of my day 2001+, so times may have changed

I did some measurements on shazam and it seems to send about 7kb&#x2F;minute, which corresponds to 300MB&#x2F;month, i.e. no big deal. I suppose it helps that shazam was designed in the age of expensive bandwidth.

I&#x27;ve learned when setting up a family plan that depending on how many devices you already have (my wife and I each had 1 phone and 1 apple watch) we could get an extra line with unlimited data for functionally nothing. (The sim&#x27;s sitting in my dashcam right now, been silently plugging away for months)

Some phone plans like Google Fi will give you a data only sim card for free. It ends up being totally free as long as you have unlimited data plans. I use my old phone and a data only sim card for random projects.

Love this idea! I presume you&#x27;re using cellular? Won&#x27;t it rack up a lot of costs?

Why did you move to the Mission, a noisy neighborhood, if you don’t like noise?

can you also make it tell people to turn the noise down

It might reflect different attitudes between cultures as to what volume makes one an &quot;asshole&quot;.

Highly variable of course - but I&#x27;ve found these types of self-centered narcissistic attributes to be far more endemic to western culture. I don&#x27;t remember a single time in my years of living in Taiwan where I heard somebody blaring loud music &#x2F; subwoofers, both while walking around and in all the flats that I lived.

I guess it will mostly reflect the musical taste of assholes who turn their music up loud. Hmm, but maybe all culture works like that.

&gt; But it&#x27;s not about catching criminals. It&#x27;s about catching vibes.Love this so much.

Blitzkrieg.... Hoes?I&#x27;ve spent a few more minutes than I should have trying to work this out. The only way I can figure this is it&#x27;s related to the head movement? Still not sure. I sure do have very little love for this generation though

&gt; For anyone who doesn&#x27;t know, &#x27;bop&#x27; to gen Z is a derogatory term for a sexually active woman, it basically means &#x27;slut&#x27;.I have never heard this and I&#x27;m &quot;Gen Z&quot;. I looked at Urban Dictionary and the earliest definition that says slut goes back to 2005, so &quot;Gen Z&quot; definitely didn&#x27;t come up with it.

&gt; really irritates me, particularly when it&#x27;s used to attack women.It&#x27;s black slang and it&#x27;s decades old.Rather than being some Woke Simp the truth is you don&#x27;t like the way lower class black people speak.Or maybe you don&#x27;t like TikTokers speaking like lower class black people?Or you could get over yourself and just explain words?

We used &quot;bopping around&quot; as a term to describe a sexually confident woman enjoying herself on the scene, as a generally positive term, at least since 2015, so I&#x27;m not sure it&#x27;s a zoomer thing. Did it become a derogatory term? As we used it it was explicitly in opposition to &quot;slut,&quot; it was a word of empowerment. Like yeah she gets laid good for her.

First usage I can think of is &quot;boppers&quot; in Paul Wall &amp; Kanye West&#x27;s 2005 &quot;Drive Slow.&quot; It&#x27;d be a hell of a coincidence if they weren&#x27;t related. In Wall&#x27;s oeuvre it just seems to denote &quot;the women I&#x27;m interested in&quot; without much in the way of connotation.&gt; The disco ball in my mouth insinuates I&#x27;m ballin&#x27;
&gt; I&#x27;m leaning on the switch, sitting crooked in my slab
&gt; But I could still catch boppers if I drove a cab<a href="https:&#x2F;&#x2F;genius.com&#x2F;20328302" rel="nofollow">https:&#x2F;&#x2F;genius.com&#x2F;20328302</a>

Yes, I&#x27;m quite upset about the repurposing of &quot;bop&quot; to be offensive, it was a good word and I liked its old meaning.For anyone who doesn&#x27;t know, &#x27;bop&#x27; to gen Z is a derogatory term for a sexually active woman, it basically means &#x27;slut&#x27;.Redefining existing words is something that really irritates me, particularly when it&#x27;s used to attack women.

I spent too much time on TikTok, because I got confused how a &quot;bop&quot; spotter even worked.

Like where&#x27;s the Yacht-Rock district and is Trap-House actually played near any trap houses, etc?

And music fingerprinting is probably incredibly accurate, because it can work similar to linguistic fingerprinting.There was a site posted to this place a year or so ago, which looked at work frequencies to find alt-accounts.I don&#x27;t hide the fact that I use a different account on different computers, so I have a personal account and work accounts and end up changing accounts each time I change jobs.This site correlated all my accounts, using a very basic fingerprinting technique of looking for words which a user uses uncommonly often.It found them all with a good degree of confidence.I haven&#x27;t seen reference to that site since, I suspect it got taken down.Musical fingerprinting would be accurate to a similar degree. You wouldn&#x27;t look for the music someone listens to most, you&#x27;d look for uncommon combinations.A combination a just a few songs that someone listens to unusually more than other people is probably enough for a good enough correlation for fingerprinting.

Then you&#x27;d get someone taking the trouble to correlate music and times, to capture someone moving across the city on the map.Only if someone can move across the city in three minutes.

You would still need a way to map the music to the person listening to it.Apple and Google could do this if you use their music services, but they already know where you are.I suppose if I have very unique taste in music and someone else knew about it, they could track me, but this is easily foiled by wearing headphones.

Then you&#x27;d get someone taking the trouble to correlate music and times, to capture someone moving across the city on the map.Then you&#x27;d get profiling to potentially pick out who in particular moved across the city and the exact time of path of their movement.While this is a nice idea on a local scale, when scaled up it has horrendous privacy implications.

This is really cool. Imagine a map of this across a city, being able to see what different areas tend to listen to. I imagine you&#x27;d find some surprising and not-so-surprising things.

Good effort if that&#x27;s what it is (I confess, I haven&#x27;t looped back to check).Sharing for people to check is useful to bed something in, I&#x27;m not fond of the &quot;privacy violation&quot; but I grew up in small communities .. if you said anything within earshot in a public area it went around town faster than 10 gigabit fibre, and that was before WWW, before even TCP or the IP it sat on.Accessible storage and replay forever is a whole level up, but these are the days in which face recognition is being rolled out to giant billboards that can display different images to different positions and track several moving pedtrasians with targeted ads based on their preferences.

See I’m not sure that it is legal. If they are re-transmitting audio is being played in public over the Internet for potentially many thousands more people, I’m pretty sure the RIAA, the UMG, &amp; the WMG would all have something to say about it.

You can faintly hear the accordion near the end of the recording.I don&#x27;t like that it shares the recordings though. It doesn&#x27;t add much value and it&#x27;s a privacy violation, even if it&#x27;s legal.

I listened to six and only just barely caught Just the Two of Us. Half the rest are just hallucinating.

Nice idea - it&#x27;d be interesting to do some stats on matching accuracy, eg:<pre><code> September 29, 2024 6:53 PM 
 La Banda Del Carro Rojo
 Los Tigres del Norte
</code></pre>
links to the captured street noise that matched .. and I (perhaps others can) cannot hear the asserted &quot;match&quot; <a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=1Wjz9L0UOhE" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=1Wjz9L0UOhE</a>but bonus points for picking up that Virreinato de Nueva España vibe.

How does it survive SanFran&#x27;s infamous sea fog that rolls in from time to time?

I&#x27;m nervous about the battery being at 91%...is it not plugged into a constant source of power?

Super cool! This is a proper fusion of innovation and creativity.

Looks like the results are exported to a CSV file: <a href="https:&#x2F;&#x2F;walzr.com&#x2F;bop-spotter&#x2F;export" rel="nofollow">https:&#x2F;&#x2F;walzr.com&#x2F;bop-spotter&#x2F;export</a>

This is amazingYou&#x27;re keeping charts, right? I wanna know what the top hit on that block is next month

I love this. Beautiful, simple, but just a little subversive.:chef’s kiss:

Thinking this through more deeply, I agree and see your position. It is creepy to surveil audio and possibly send in full to Shazam. [edit: And post the original audio recordings online.] The ethical way to do this would be to use your own code to decimate the audio signal to extremely low dimensionality.

The music fingerprinting on my Android phone works in airplane mode, so it would be possible with modifications. Also, it&#x27;s likely that Shazam is sending a &quot;hash&quot; of the audio rather than an audio stream in most cases.

Recording conversations are illegal but if you could prevent that from happening, there is enough wiggle room that it has the potential to be legal.

Would that not mean that Shazaam is illegal Germany? From my limited searching it doesn&#x27;t seem like it is.

Which law are you thinking about in particular?I expectation is that the microphone above the rooftop will not pick up on normal conversations, only louder stuff.

Installing stuff on public utility polls is probably illegal everywhere.

The legality of it only matters if you get caught. So don&#x27;t use hardware or software that&#x27;s traceable back to you, and be sufficiently careful to remain undetected when you install it. People often weigh the likelihood of being caught much, much higher than it actually is, and therefore conclude &quot;I mustn&#x27;t do anything illegal&quot;, which is irrational.

I recommend you sit this one out, as recording people, even if only audio and sending the sound over the internet is very much against the law in germany

What more could one possibly need than &quot;it&#x27;d be fun to build&quot;? Does everything in the world have to be novel and important? Or can some things just be cool and for fun?

The music industry has a long, long history of people paying to put songs in prominent places. If you built it yourself you would be 100% confident that nobody was paying the person compiling the playlist to put songs on it.Well, at least at first. If your playlist derived from the ambient music of a particular streetcorner in Berlin becomes popular enough, someone would probably try hanging out there blasting their new song 24&#x2F;7. Someone else might try approaching you about working out a deal to pay you to slip their new song into the mix. And of course you can never know who&#x27;s paying to put songs on whatever stations or playlists the locals are listening to.Some pretty interesting things would probably happen as the result of your goofy little fun project getting big enough to start having these problems though.

Other than &quot;it&#x27;d be fun to build&quot;, what would it bring to the table in comparison to say this Apple Music playlist? <a href="https:&#x2F;&#x2F;music.apple.com&#x2F;us&#x2F;playlist&#x2F;top-25-berlin&#x2F;pl.184d7987ce334147bfd1511c050c1a23" rel="nofollow">https:&#x2F;&#x2F;music.apple.com&#x2F;us&#x2F;playlist&#x2F;top-25-berlin&#x2F;pl.184d798...</a>

How do I join the party? Is there a quickstart so you can hear the vibes of Berlin?[edit: It would be awesome if others could collaborate on this and had a guide on how to do it!]

Clicked through to see if this was using the 2024&#x2F;TikTok definition of &quot;bop&quot;. That would be a very different app. Not infeasible. Possibly illegal.

It involves a massive increase in housing prices, primarily brought about by artificial supply restrictions, that results in unintentional displacement. The reason the Mission is still variegated is rent control, along with various forms of affordable housing, housesharing, master tenant slumlords, SROs, extended family arrangements, etc. It&#x27;s a pretty unique and amazing place really.

Where does gentrification begin and end? The mission went from Ohlone to Spanish to German&#x2F;Irish&#x2F;Italian immigrants, then Mexican immigrants, then Central American, then LGBT, then wider punks&#x2F;misfits and other immigrants including Filipinos, before the techies started moving in. I don’t really understand this term because it seems to suggest before a richer class moves into an area it displaces “the true inhabitants,” but those true inhabitants have almost always displaced someone else.

&gt;from the example it didn&#x27;t detect any music between 11:30pm and 9:30amI thought it might have died because the site mentioned it is solar powered.

from the example it didn&#x27;t detect any music between 11:30pm and 9:30am. I don&#x27;t know what corner of the mission that could possibly be.

Just offering another point of data, your observation of the &quot;same space with no overlap&quot; and the anecdote about the restaurant hits so true for me! Almost the exactly same thing happened to me, Spanish nearly the whole time. Later, with a coworker, 100% gringo experience. Hilarious! The alternation between places like this as you walk up 24th always struck me as notable.This couldn&#x27;t have been later than 2011, at which time the zeitgeist was replete with jabs at the ongoing gentrification. :)

&gt; mind boggling to me sometimes how the two communities exist in nearly the same space but don&#x27;t often overlapYou may enjoy China Miéville&#x27;s The City &amp; the City [1]. The less you read about it ex ante, the better. It&#x27;s one of those books that gives you a mental model and language that proves surprisingly useful in describing what you saw.[1] <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;The_City_%26_the_City" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;The_City_%26_the_City</a>

The amount of gentrification in the Mission varies a lot based on where you go.I volunteer on 24th st. weekly, something I&#x27;ve been doing since 2019. The crowd at the volunteering is mostly immigrants. I am white, native English speaker but I speak decent Spanish.It&#x27;s mind boggling to me sometimes how the two communities exist in nearly the same space but don&#x27;t often overlap. I remember one time I went into a restaurant and they engaged with me in Spanish right off the bat, we never switched to English, I got a table to dine-in and they waited on me and it felt pretty much like dining at a restaurant like in travels I&#x27;ve had in central America... A few months later I brought a friend to the same place and I ended up getting a 100% gringo restaurant experience.Another place down the street and the cashier is like some very pale upper midwest looking hipstery guy who looks &quot;whiter than me&quot;, and it felt like a totally different world, one that didn&#x27;t overlap at all with description above.

I&#x27;m not a Bay Area person, but was visiting a few months ago and got a new tattoo at Rose &amp; Thorn right off the 16th BART station.  Took a walk around waiting for the appointment and it&#x27;s crazy how fast the vibe changes from block to block.

The Mission is a variegated place. It&#x27;s been undergoing gentrification for 4 decades but it never seems to get there - so much so that you could say that that&#x27;s become its &quot;thing.&quot;The exact location where the phone is placed makes a huge difference. Going from Valencia to Shotwell to the BART plazas to the Latino bars and back to the hills your soundtrack would change quite a few times.

Can you add youtube music as a &quot;listen to&quot; link?

Why not? Seems to perfect execution to me. Solar powered, neat website, what else could you ask for?

Cool idea, we need a way to stream the playlist!

I think this is really cool, and am surprised by some of the negative comments here

Now this is a unique idea.I&#x27;d like to see this rolled out widely so we can get some map of music.

I think this is just literal rickrolling.

I suppose this would be &quot;Rickdriving&quot;?

sounds like it&#x27;s on a major bus line which narrows it down pretty substantially

You could probably locate the exact location of the microphone by driving around in a carefully planned pattern with unique, known songs playing.

Stick to the streets that have bus lines!Edit: There&#x27;s clearly a bus stop right near the pole.

I appreciate your username in this context.

I&#x27;d suggest playing darude - sandstorm on loop, fairly loudly but with a (cone) directional speaker pointing straight upwards, spiraling in towards mission &amp; 20th st starting ~6 blocks out in each direction. Record the time when you reach each intersection, and you&#x27;ll know exactly which street segment you were on when your song got shazam&#x27;d, without having to actually ride on every segment (save roughly 50% travel time compared to doing the full grid).

Space-filling curve with a single song sequence? …Non-Euclidean space-filling curve, technically, because it has to fit the city grid topology.Large phased-array speaker on a stationary balloon platform above the city, capable of rapidly scanning and blasting every telephone pole in the neighborhood?

Different old songs (still on Shazam) in lat and long direction, if you find two of them you have the exact location.Could also place a directional speaker on top of your cars roof to not listen to it yourself or interrupt neighbors, just to be able to locate it.

I&#x27;m wondering the same thing... Music loud enough to be recorded by a &quot;crappy Android phone&quot; placed &quot;on a pole&quot;?

If you’ve never lived in a major urban area in the US, I imagine this might seem strange. People drive around with music playing loud enough that a crappy mic would easily pick it up.

Where exactly does music play in public this often?  Maybe it&#x27;s outside some kind of store?

It was me - I will say that wardriving rickroll would be complete overkill

It seems like someone found this because it showed up one or two songs ago.

<a href="https:&#x2F;&#x2F;x.com&#x2F;fulligin&#x2F;status&#x2F;1841022534848036949&#x2F;photo&#x2F;1" rel="nofollow">https:&#x2F;&#x2F;x.com&#x2F;fulligin&#x2F;status&#x2F;1841022534848036949&#x2F;photo&#x2F;1</a>&gt; As of 12:30am PST I have located the Box and successfully executed a Rickroll Injection Attack on the target system. Out of respect for the artist I will not be revealing the Box&#x27;s location, but for any veteran Mission resident only a couple obvious locations exist.

Looks like someone&#x27;s done it:12:36 AM Flores LATIN MAFIA12:36 AM Never Gonna Give You Up Rick Astley12:32 AM El F Natanael Cano &amp; Junior H

<a href="https:&#x2F;&#x2F;x.com&#x2F;fulligin&#x2F;status&#x2F;1841022534848036949" rel="nofollow">https:&#x2F;&#x2F;x.com&#x2F;fulligin&#x2F;status&#x2F;1841022534848036949</a>

Alright, who wants to go wardriving around the mission with me, blasting Never Gonna Give You Up?

It will be good to see if it can run continuously with only solar power to replenish the battery.BTW I&#x27;m curious what the solar setup is?

Sometimes you just need a little bit of Monica in your life.

Some psycho is out there blaring Lou Bega mambo no 5... they must be stopped.

I bet the hardware will take a bit more - the script could be just something like <a href="https:&#x2F;&#x2F;github.com&#x2F;loiccoyle&#x2F;shazam-cli">https:&#x2F;&#x2F;github.com&#x2F;loiccoyle&#x2F;shazam-cli</a> running every minute and, when there&#x27;s a valid result, upload to your backend&#x2F;Sheets API&#x2F;Telegram bot etc

Love that - thought about sharing your source for any of us interested in doing this in our city? Fund idea

Can you do one that counts how many people go directly from drinking in front of Mr. Liquor and then into their cars or dirt bikes?

There are some picture to pixel libraries on GitHub, something like this would probably be able to produce the same effect: <a href="https:&#x2F;&#x2F;github.com&#x2F;giventofly&#x2F;pixelit">https:&#x2F;&#x2F;github.com&#x2F;giventofly&#x2F;pixelit</a>

Pixelated cover art conversions are a nice touch. How?

Would be cool if this updated a playlist with everything heard, so we could follow along.

I read this post every few months to keep that spirit<a href="https:&#x2F;&#x2F;justforfunnoreally.dev&#x2F;" rel="nofollow">https:&#x2F;&#x2F;justforfunnoreally.dev&#x2F;</a>

100% - after I left my last startup I was in that frame; I did recurse.com and it really helped rekindle that spirit.

I&#x27;ve definitely noticed the same in my career. Its easy to get caught up in the day-to-day and forget some of the reasons you got started doing all this in the first place (in my case, because its fun and I&#x27;m passionate about software&#x2F;hardware).On a whim, I decided to invest time in writing down one idea per week of anything fun I could hack on. It doesn&#x27;t really matter whether or not I go through with it, I keep the stakes low: just write an idea down. That way it forces me to think about things I could build for myself or others&#x2F;friends&#x2F;family without much cognitive investment.The end result has not only had a nonzero impact on my motivation to start new projects, it has impacted my ability to actually follow through. And I&#x27;ve noticed the practice has made the ideation loop happen more frequently than once per week over time.

The embedded world awaits you:<a href="https:&#x2F;&#x2F;microengineer.eu&#x2F;2018&#x2F;05&#x2F;01&#x2F;diy-night-clock-projector&#x2F;" rel="nofollow">https:&#x2F;&#x2F;microengineer.eu&#x2F;2018&#x2F;05&#x2F;01&#x2F;diy-night-clock-projecto...</a>Weather Station using LilyGo T-Display S3: <a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=VntDY9Mg7T0" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=VntDY9Mg7T0</a><a href="https:&#x2F;&#x2F;github.com&#x2F;goat-hill&#x2F;bitclock">https:&#x2F;&#x2F;github.com&#x2F;goat-hill&#x2F;bitclock</a><a href="https:&#x2F;&#x2F;www.hackster.io&#x2F;lmarzen&#x2F;esp32-e-paper-weather-display-a2f444" rel="nofollow">https:&#x2F;&#x2F;www.hackster.io&#x2F;lmarzen&#x2F;esp32-e-paper-weather-displa...</a>

Get into solar! You can cobble things together pretty reliably to do fun things.

Just reorient your thinking to consider building CRUD web apps as fun.

I feel this so bad, I used to make little software that solves my problem, now whenever I want to build anything I think about &quot;is it going to be useful for my resume?&quot; instead of fun things and I always quit because it then put lots of pressure on me for building &quot;useful but not fun&quot; projects.

This kind of project has made me realize that somewhere along the way, I quit thinking of tech as a way to build anything fun. I need to rekindle that goofball spirit.

I was going to complain that it had a non-duplicate constraint.. but then I realized you could remove from the other end and have a managed pubsub queue, nice.

If you link it to your Spotify, Shazam will add anything it recognizes in a special playlist.

They might have a power bank as a buffer for the solar panel. Doesn&#x27;t really go into detail.

I was wondering the same. Also curious about those battery stats:&gt; Battery currently at 80% (a decrease of 6% in the last 4 hours).That&#x27;s gotta be an OLED screen at lowest brightness or, even more likely, a fully black overlay app since the mic is constantly active and either locally processing it into Shazam and streaming fingerprints or (less cpu, more network) streaming it to a server which then does the processing and queries Shazam. As a comparison, my work phone is off+idle basically the whole time and takes twice as long to charge at a higher wattage as my personal phone (i.e.: large battery by my standards), and that uses nearly a percent per hour while the screen is off with maybe 20 messages and one email coming in across 4 hours.I&#x27;m amazed by the idea, that no rate limit has kicked in on Shazam, that they didn&#x27;t connect it to a power source, and that the battery is lasting so long!Edit: missed that it is being powered by a solar panel

He commented elsewhere that he uses a Python library that wraps a private API

How do you get the data out of the Shazam app (?)

Super sick!! Convert this to a live radio&#x2F;realtime feed

&gt; I know Shazam does most of its work on very high frequenciesAre you sure about that? High frequencies don&#x27;t propagate as well (and, beyond a point, aren&#x27;t reproduced at all by cheap speakers), so that would seem to limit its effectiveness pretty severely.

Same, although I know Shazam does most of its work on very high frequencies so it’s possible we’re not able to hear the part that got matched.The “Not Like Us” snippet (09&#x2F;29 2:43pm) is easily recognizable though. And “Rockabye” can be heard at 3:05pm.

&gt; I really should read more about how Shazam&#x27;s algorithm works, because it feels like magic.<a href="https:&#x2F;&#x2F;www.ee.columbia.edu&#x2F;~dpwe&#x2F;papers&#x2F;Wang03-shazam.pdf" rel="nofollow">https:&#x2F;&#x2F;www.ee.columbia.edu&#x2F;~dpwe&#x2F;papers&#x2F;Wang03-shazam.pdf</a>

will be interesting to see how it fares in the winter!

The battery will live much longer if you run it from 80% down to 50%. There are some clever plugs you can get off the shelf if your phone doesn’t support setting this in software.

Holy cow.Just clicked around and you&#x27;re right: the Sep 29 5:19pm snippet detected &quot;Celebration&quot; by Kool and the Gang, and there&#x27;s almost nothing there. But it&#x27;s in there.Had I not known what I was listening for, and been intentionally listening, there&#x27;s zero chance I&#x27;d have picked up on it.It does feel like magic.

I&#x27;ve listened to a bunch of the snippets and you can usually just barely hear the sound in the background. Which makes me think Shazam is very accurate. I really should read more about how Shazam&#x27;s algorithm works, because it feels like magic.The phone records 10 minute chunks of audio at a time, in airplane mode. Every 10 minutes, airplane mode is turned off and the audio is uploaded to a server. The server then splits the audio into 15 second overlapping chunks, and each is passed to Shazam&#x27;s API (no official API, but someone reverse engineered it and made a great Python package). This setup is super power efficient! The phone dips down to a minimum 70% percent battery by the early morning.

I played, more than once, a few of the sound snippets. I think the Shazam &quot;findings&quot; are highly inaccurate. Fun project nonetheless!walz, could you write more about the setup, maybe to propitiate others to replicate it in other cities?

AWESOME project. thank you for the inspiration! and the hope!

subwoofers are an invasive tech and unchecked they can wreck neighbourhoods, this project could yield data on that imo.

I was waiting for someone to sneak in a anti-car angle into this and presto what have you ! Haha

Or blasted from a nearby apartment window, or cookout, or boombox on a bike, or bluetooth speaker carried by a walker, or....

Nice. there&#x27;s a selection bias as the people who play music loud enough to be heard from their cars and several genres there just don&#x27;t overlap at all.if we&#x27;re acknowledging that the music played from cars is neighbourhood vibe, it raises the question of whether they are interfering with the neighbourhood as well.

Yeah it&#x27;s pretty cool that it runs off-line.  I wonder how large the local database is?  They did add a second togglable option that lets you chose an online search if the song not recognized.

I loved that feature of my old Pixel. Even in the middle of Germany, with no cell reception whatsoever, I&#x27;d surprise people by looking at the always-on-display to see what song was playing somewhere.

I&#x27;m surprised it still isn&#x27;t built into Spotify. Hear a song, like a song.

Google added this optional feature to pixel lock screens a few years back. You can &#x27;heart&#x27; songs and it adds them you your playlist. It looks like my phone ID&#x27;s about 300 songs a month!<a href="https:&#x2F;&#x2F;support.google.com&#x2F;pixelphone&#x2F;answer&#x2F;7535326?hl=en" rel="nofollow">https:&#x2F;&#x2F;support.google.com&#x2F;pixelphone&#x2F;answer&#x2F;7535326?hl=en</a>

Have you seen the latest YCombinator batch?

How is he wrong though? &quot;Bad vibes&quot; all you want but there is a reason. The golden ages are over.

Your response falls into DH0, DH1, and at best DH2 of Paul Graham&#x27;s disagreement hierarchy: <a href="https:&#x2F;&#x2F;paulgraham.com&#x2F;disagree.html" rel="nofollow">https:&#x2F;&#x2F;paulgraham.com&#x2F;disagree.html</a>

Comments like this worry me that HN is being dragged down with the wider culture wars and truthiness that’s destroying all that we have. I would hope for better in this forum.

You dismiss my point by dismissing its tone, but you fail to address the actual substance, which is a failure to follow HN norms in itself.Agreed, it&#x27;s a cool website. Very strange how it&#x27;s seemingly novel, while this tech is actually already deployed to all our phones.Is that a better, more nuanced, less individualistic, and more conformist way of expressing my idea?

What has happened to HN commenting?Everyone is trying to make reddit hot take comments with a sneer as they type it out.Anyways. This is a cool website.

This comes up a lot, but the reality is that people are fairly predictable and Apple and Google don&#x27;t need to literally listen (expensive) to make fairly accurate guesses about your behavior.All they need is enough metadata.

Pretty sure Apple and Google already do this, just to all phones, in all homes, and not just for music, but your entire life! No consent needed. Have a nice day! :)

How did the author get Shazam to constantly sample songs?

Probably a random delay to avoid being located

What a cool project! What fun!I&#x27;m curious, is there a hardcoded delay, or does the delay reflect the amount of time it takes to process what&#x27;s playing and update the website?

honestly, who gives a fuck if it does? its okay to break unjust or silly laws.

They’re listening in a public place, where there is no expectation of privacy. Also, it’s not clear it can hear any conversations, only music may be loud enough to teach it. Finally, it’s not recording the sounds, only analyzing them.

How does this project not run afoul of federal and state wiretapping laws?&gt; <a href="http:&#x2F;&#x2F;www.dmlp.org&#x2F;legal-guide&#x2F;california-recording-law" rel="nofollow">http:&#x2F;&#x2F;www.dmlp.org&#x2F;legal-guide&#x2F;california-recording-law</a>

I was on the ground in SF yesterday and this caught a pro-Trump car convoy blasting God Bless America yesterday so it definitely can work if cars are blasting music.  Certainly an interesting project.

nice would be to add mapping data, and correlate to other factors.

Great job, i hope the author passes by here, would like to know what brought him on the idea.

This is looking about 90% Spanish songs and 10% reggae-fusion.

Spanish language pop music is also just extremely mainstream and popular in the United States, and has been for decades.

I don&#x27;t know what a &quot;surprisingly high&quot; number is - but the mission is about 1&#x2F;3 Spanish speaking as far as I can tell[1].[1] It&#x27;s hard actually, but this language diversity data(<a href="https:&#x2F;&#x2F;www.sf.gov&#x2F;data&#x2F;san-francisco-language-diversity-data" rel="nofollow">https:&#x2F;&#x2F;www.sf.gov&#x2F;data&#x2F;san-francisco-language-diversity-dat...</a>) says there are ~20k speakers and this district population breakdown (<a href="https:&#x2F;&#x2F;www.sfgov.org&#x2F;ccsfgsa&#x2F;current-san-francisco-supervisorial-districts" rel="nofollow">https:&#x2F;&#x2F;www.sfgov.org&#x2F;ccsfgsa&#x2F;current-san-francisco-supervis...</a>) says there are ~67k residents

Malmquist bias[0] for neighborhood music!It would be hard to find that correlation because you can’t get a base rate. I don’t think you can measure the distance, so you don’t know if it’s loud or close. Maybe there’s no correlation independent of the music taste of the neighborhood.Lots of Spanish doesn’t surprise me. It’s a neighborhood that’s still largely Mexican, and Latin Pop is really big in the US in general.[0]<a href="https:&#x2F;&#x2F;en.m.wikipedia.org&#x2F;wiki&#x2F;Malmquist_bias" rel="nofollow">https:&#x2F;&#x2F;en.m.wikipedia.org&#x2F;wiki&#x2F;Malmquist_bias</a>

I think there’s definitely a bias towards songs that you’re going to blast from your car with the windows down. As someone decades away from that stage of life, it would be unlikely that anything that I listen to would show up in the lists (and, in fact, skimming over a couple days’ songs, there were only three songs I recognized, although a few more artists).

When coming from building with no music at all, I’m nearly forced to agree.

I used to go build houses in Tijuana with a charity, and invariably, some neighbor would see us building, and come out with some speakers to absolutely blast mariachi. Always followed up by a wave or a thumbs up, implicit that an objective net improvement had just been deployed.

The Mission has a lot of Latin American restaurants, bars and nightclubs that attract a Spanish-speaking clientele (or people who want to meet Spanish speakers) from outside the neighborhood. And the neighborhood itself is around a third Spanish-speaking.

Cool. And I noticed that a surprisingly high number of songs are in Spanish. So I&#x27;ll venture to hypothesize that this project will identify a correlation between musical taste and preference for how loud it is played, rather than accurately capturing the &quot;musical taste of the neighborhood&quot;. Any thoughts on that? Have you tested how loud a song needs to be played in order to be picked up?

Rather than relying on the bop spotter timestamp, you could play thirty-second snatches of different extremely obscure songs, on a schedule. When one of them turns up on the bop spotter, you know when you were passing it, to thirty seconds precision.

I hear a Muni bus stop nearby, and a lot of voices at 3AM, so I am guessing it&#x27;s near bars, maybe Mission street. Maybe a pole near enough to an apartment fire escape to ziptie a solar panel. I wonder if the timestamps are accurate enough for me to ride my bike down mission blasting a song, and check strava for where I was at that timestamp, then spot the spotter. Just for fun of course, not to post or dox.

2 Live crew @ 9:03A most likely because they were mentioned on NPR this morning

This is a fantastically fun little project

Guess who is heading to the Mission today to play my fav songs!:DLove projects like this

How do people sleep with that noise? I see the noise and music is through the night.

Nothing says good vibes like &quot;Me So Horny&quot; at 9:03AM lol

&gt; I have never looked up and played Drake or Taylor Swift, but they come up in &quot;curated&quot; playlists thought-provokingly often.That&#x27;s not necessarily due to payola or whatever - both Drake and Swift are very talented as well as prolific and among the best operating these days, even if they are pop artists. It&#x27;s not strange to see them recommended algorithmically if the listener is into modern music at all.

Or spotify jamming a song into everyone&#x27;s algorithms, as a cynical take.I have never looked up and played Drake or Taylor Swift, but they come up in &quot;curated&quot; playlists thought-provokingly often.

I&#x27;ve noticed a bunch of radio stations these days seem to be endless hour-long loops.

Good point! This definitely seems like a candidate for that sort of thing, and that&#x27;s before even talking about the distribution of of music likely to be played isn&#x27;t at all uniform.

I wonder what the chance of the birthday paradox affecting the music is. Given that y song will make up x% of plays, how likely is it that any song has two consecutive plays, or two plays within an hour?

I notice that on September 28 (near the top of the list, since it doesn&#x27;t seem to have anything for today yet) the same Pitbull song was detected separately a little less than an hour apart, and I can&#x27;t help but wonder if it was the same person listening to it on loop. Several months ago, my fiancee and I overheard someone driving outside blasting Adele&#x27;s &quot;Someone Like You&quot; from inside our apartment, and every 45 minutes or so we&#x27;d hear it again, so we couldn&#x27;t help but assume it was the same person driving around the city with it on loop, probably going through some rough breakup or something.

Huh? “Total Shazams ever detected: 240. That&#x27;s an average of 240 songs per day.”

Well put. I agree 100%. Gives me hope in a way I can’t quickly put to words.

Does it fit the definition of a hack, or not?

Funnily enough I&#x27;ve also heard throwies cited as evidence of some kind of cultural decline - &quot;not a real hack&quot; etc.

Very well put.The Game Boy dot-matrix display is the icing on the cake!

Covered incredibly by deafheaven (along side the track Cody)<a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=2GyIggA4b5w" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=2GyIggA4b5w</a>

&gt; ..a kind of punk-rock..And my mind flew to Mogwai&#x27;s &quot;Punk Rock&quot; (<a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=dJ5_0AMEDag" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=dJ5_0AMEDag</a>)

&gt; how it was made is less interesting than what it _does_That&#x27;s the best part!

About 15 years ago I read an NYT article where all corporate audio, at least of the musical variety, had if codes embedded in the streams that passive listener devices could pick up.I believe the point was for detection of royalty fees for public playback of songs.I since have heard nothing about this, was that article true, and could you use it for this project?The undercurrent of my interest was the pernicious tracking aspect, which is hilarious given it preceded the smartphone and it&#x27;s active monitoring of everything you do

I love everything about this.There is this undercurrent to our technology landscape. A kind of subculture somewhere in the locus of the hackersphere where a kind of punk-rock ethos rules the roost. I can only describe it as a live exploration of concepts _through_ technology, where functional fixedness is a foreign concept, including in the shared experience of social construct; everything becomes parts to be remixed in a way. In this place people just do things that, by way of having fun, just becomes art. It&#x27;s emergent gameplay just by following a solitary &quot;rule of cool.&quot;I saw this page and was immediately transported back to the late 1990&#x27;s and early &#x27;aughts. The kind of &quot;I glued these things together and just look&quot; attitude that graced the pages of hackaday.com and slashdot.org. LED &quot;throwies&quot; come to mind.In this case we have a de-facto art installation. I imagine that this was probably put together with odds and ends, maybe installed illegally, and probably doesn&#x27;t have longevity in mind for its construction. It lightheartedly challenges some conventions, challenges ideas about privacy, brushes up against copyright, and is entertaining to boot. Most importantly, how it was made is less interesting than what it _does_, and where it carries the conversation of the observer. Or maybe: that&#x27;s the point.

I really love the LCD aesthetic of this site.

Fantastic idea! The detection doesn’t seem very actuate through - most of it is noise with no actual music playing in the background. I don’t know how the algorithm assumes it’s a song.

&gt; It’d be nice to not see that “translate this page” pop upMany of the songs detected are latin artists with like monikers and song names.Is there a way to suppress&#x2F;prevent google from analyzing the contents of a page and determining such?

I just tried on my macbook (was on ipad before) and I&#x27;m still getting the translation popup :(

Quick bit of feedback: Google translate thinks this page is in Spanish (I wonder why). It’d be nice to not see that “translate this page” pop up. Otherwise, cool project!

The design inspiration site <a href="https:&#x2F;&#x2F;mschfplaysvenmo.com&#x2F;" rel="nofollow">https:&#x2F;&#x2F;mschfplaysvenmo.com&#x2F;</a> also looks pretty fun.

so so cool and the spirit of this project (which seems to speak to many other commenters too) really reminds me of this recent hackernews post: <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=41395413">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=41395413</a> &#x27;The secret inside One Million Checkboxes&#x27;the creativity in endeavors like these really just elicits total joy. it&#x27;s infectious!

I can already see Matt Levine&#x27;s column: if someone places secret recorders at Starbucks and leaks the transcript to the internet, is it insider trading?

somebody needs to do this at a couple of starbucks in key areas, record anon conversations and build a browsable map of topics

Perfect is the enemy of good. I&#x27;ve found it&#x27;s much better to get a project up and running as an &quot;MVP&quot; than to chase the perfect until the details suck all the fun out of it.

I don&#x27;t get what you mean by &quot;possibility for abuse&quot;. The author abusing it? Well if they wanted to do that they wouldn&#x27;t have built the whole music detection thing and wrote about it on the internet. If Shazam gets breached or turns evil, we have infinitely bigger problems than this one phone on this one street. If the author&#x27;s server gets hacked, the hacker wouldn&#x27;t care about this - the hackers who want large surveillance networks hack phones and IoT crap, not random people&#x27;s home servers.And honestly, as a commentary on how commonplace and normal mass surveillance has become, which this project seems to be, I quite like the threat of &quot;there is a box out there somewhere that sends everything it hears to a server and it does this not for good or evil, but because one programmer was bored and thought what if I could know what song was playing in the cafe across the street&quot;.

A bit disappointing that this sends audio recordings to a server. Even if it&#x27;s not the intention, that leaves so much possibility for abuse.Why not use a Pixel phone with on-device song matching? It also keeps history on device. Getting that data out of the app might be a little tricky, but should be possible.

I used an old Motorola phone for this, and yes, if it dies it won’t turn back on again until the power button is pressed. I Googled around and there’s a way to disable this behavior though, through an ADB command. The bad part is that it supposedly might get stuck in a boot loop – it tries to boot but there’s not enough battery yet, so it dies and keeps trying to boot. Over and over.I made a second Tasker automation, so it shuts down with less than 15 percent battery. It might still get stuck in a boot loop, but eventually the solar panel will quickly charge it above 15% so that it won’t be for very long.

When the phone is &quot;off&quot; but showing the charging animation, it&#x27;s actually booted and the animation is a program it&#x27;s running. There used to be a hack, I don&#x27;t know if it works on modern Android, where you&#x27;d essentially edit the init scripts and tell it that the charging animation task should be the rest of the boot process, or your specific app of interest.

That&#x27;s so cool, I gotta check out this Tasker thing!&gt;when it boots againDo any Android phones turn on automatically when sufficiently charged? The ones I&#x27;ve had stay switched off but with a little battery charging animation. (I think my old iPhone auto powered on when charged past a certain percentage though.)

60,000 divided by 60 is 1000, not 10,000. So only about a month, still a lot of time!The phone has 4,000mAh, too.

It uses solar power, right? So I think it was built with that in mind. charge during the day and run until it loses power at night

How big are 60k mAh safe batteries?I know eBikes are a massive step up from laptop batteries (seemingly better for the density too somehow?)

<a href="https:&#x2F;&#x2F;www.amazon.com&#x2F;dp&#x2F;B0CZJDVDLC" rel="nofollow">https:&#x2F;&#x2F;www.amazon.com&#x2F;dp&#x2F;B0CZJDVDLC</a>This little no-name 185Wh battery pack is $40 right now with the 50% coupon code and would probably work great. (I picked one up recently for another project and it actually does deliver as advertised performance.)

For another use case, I experienced that the phone battery starts swelling after few months. It was an indoor setup and I had removed the phone backcover to avoid overheating.

If 2% of the battery is 2% of 3000mAh (which is probably a generous over-estimate of the phone&#x27;s capacity), that means the phone pulls ~60mA.You can buy a 60,000 mAh battery (or build one) for about $50, which would buy this device 10,000 hours, or round it down and call it 1 year.

Yes, it essentially just runs a perceptual hash algorithm on the audio and finds the closest matches in a database.

Since the audio is sent to the creator’s server first, they could call Shazam from any number of rotating IPs. It’s a pretty future-proof design!

At least with the recent Pixels there&#x27;s an option to have your phone listen 24&#x2F;7 and tell you what music is playing.
Probably difficult to distinguish this tower from a homeless guy sitting in a subway station listening to different music all day.

surely shazam will realize when one IP address is responsible for 1000x a usual person&#x27;s bandwidth?or, given Pixel phones can identify audio in the background seemingly without impacting battery, are modern algorithms for identifying music from audio so efficient that shazam pays almost nothing per clip?

Google search is now better than Shazam at recognising a tune. From experience, it can also detect the right tune when someone is (badly) singing it rather than playing the song.

Some details on how this works: <a href="https:&#x2F;&#x2F;twitter.com&#x2F;rtwlz&#x2F;status&#x2F;1840821351055311245" rel="nofollow">https:&#x2F;&#x2F;twitter.com&#x2F;rtwlz&#x2F;status&#x2F;1840821351055311245</a><pre><code> The phone has a Tasker script running on loop (even if
 the battery dies, it’ll restart when it boots again)

 Script records 10 min of audio in airplane mode, then
 comes out of airplane mode and connects to nearby free
 WiFi.

 Then uploads the audio file to my server, which splits it
 into 15 sec chunks that slightly overlap. Passes each to
 Shazam’s API (not public, but someone reverse engineered
 it and made a great Python package). Phone only uses 2%
 of power every hour when it’s not charging!</code></pre>

This is so freaking cool!! What a great idea and beautiful execution.

The next step is to place a few of these around, so you can map out which way which vibes are going.

I love the styling of this page.  Everything is so consistent.  Sometimes you&#x27;ll see someone with a similar retro approach, but rarely do all the page elements follow the style this well.

Bop Spotter