Live data from Hacker News

Bop Spotter

walzr.com

71–80 of 405 posts

Re: Bop Spotter

#71
post #2

Love this idea! I presume you're using cellular? Won't it rack up a lot of costs?

I'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's sitting in my dashcam right now, been silently plugging away for months)

Re: Bop Spotter

#72
post #34

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!]

Other than "it'd be fun to build", what would it bring to the table in comparison to say this Apple Music playlist? https://music.apple.com/us/playlist/top-25-berlin/pl.184d798...

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

Re: Bop Spotter

#73
post #44

Earlier quoted context omitted.

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

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.

You misunderstand how Shazam works. Nothing is “sent in full”.

Re: Bop Spotter

#75
post #45

Earlier quoted context omitted.

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

Its not a hash though? Its a reverse - fourier transform system that matches the sound- similar to the filter that filters out the vuvuzelas? https://www.dechicchis.com/assets/Joseph-DeChicchis-Music-Id... Like having a distinctive click impulse and get the cathedral from that.

Ctrl-F in that document for 'hashing'. That step reduces the audio information to a sparse collection of key points, one for each of four frequency ranges per time segment. I would assume that everything up to that step is done on the phone and only the key points are sent to the server.

Re: Bop Spotter

#76

Earlier quoted context omitted.

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

Would that not mean that Shazaam is illegal Germany? From my limited searching it doesn't seem like it is.

Well it's you a person who is recording the music. So it's the user's responsibility to make sure you are not breaking any laws. So the app cannot be held at fault for this. No one cares if you do a Shazam in public so it all just works out.

But if you set up an autonomous recording device, no matter what you say you are doing, you will have problems.

Re: Bop Spotter

#77

Earlier quoted context omitted.

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'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 corre…

I just gave up on ever being able to really be anonymous, after I had a rather sobering interaction with Disqus. I had never used it, and wanted to leave a comment on a site (long ago -can't remember where or when). I started to sign up for Disqus, and it helpfully asked me "We found all these comments from around the Web. Should we associate these with this account?" It included some old, dead-and-gone-I-would-have-…

I do the same, but I recognise that being able to stand up and be recognised is a freedom and privilege not enjoyed by everyone.

Re: Bop Spotter

#79
post #57

Earlier quoted context omitted.

I guess no one with loud music considers themself an asshole, so this should be actually giving the information on exactly what you mention.

There are examples in several cultures of songs that boast of annoying others: https://www.youtube.com/watch?v=HMUDVMiITOU https://www.youtube.com/watch?v=X_IWlPHMziU Other cultures seem to feel more entitled, thinking that THEIR music could not possibly bother anyone. I've certainly heard people blast Wagner or Orff at high volumes.

“turn down” isn’t about the volume of the music btw.

Re: Bop Spotter

#80
post #2

Love this idea! I presume you're using cellular? Won't it rack up a lot of costs?

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.
Post reply on HN