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Bop Spotter

walzr.com

281–290 of 405 posts

Re: Bop Spotter

#281
post #278
post #250

Some details on how this works: https://twitter.com/rtwlz/status/1840821351055311245 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…

A bit disappointing that this sends audio recordings to a server. Even if it'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.

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

Re: Bop Spotter

#283

Cool. And I noticed that a surprisingly high number of songs are in Spanish. So I'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 "musical taste of the neighborhood". Any thoughts on that? Have you tested how loud a song needs to be played in order to be picked up?

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.

Re: Bop Spotter

#284

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

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

Re: Bop Spotter

#285

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

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

sounds like it's on a major bus line which narrows it down pretty substantially

Re: Bop Spotter

#286

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

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

Yeah it'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.

Re: Bop Spotter

#288
post #277

Setting up a hidden microphone that is constantly streaming to a server that is recording it forever should be illegal, if it isn't already.

Start by frying ShotSpotter instead of this fun little project.

Re: Bop Spotter

#289
post #200

Earlier quoted context omitted.

The amount of gentrification in the Mission varies a lot based on where you go. I volunteer on 24th st. weekly, something I'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's mind boggling to me sometimes how the two communities exist in nearly the same space but don't often overlap. I remember one time I went into a restau…

Just offering another point of data, your observation of the "same space with no overlap" 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't have been later than 2011, at w…

Had to re read that last sentence several times, initially assuming you were talking about the biker/dive bar down on Valencia and Duboce.

Re: Bop Spotter

#290

Earlier quoted context omitted.

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

sounds like it's on a major bus line which narrows it down pretty substantially

From the tweet we also known that the phone is nearby some free public wifi which might help narrow it down too!
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