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I was curious if there is a way to extract metadata from wav files. For instance, can you get bpm, key, instrument, etc. from a .wav file on upload?
Cody Rutscher
Posted 2018-08-30T22:46:58.773
Reputation: 79
Extracting metadata from wav files
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I was curious if there is a way to extract metadata from wav files. For instance, can you get bpm, key, instrument, etc. from a .wav file on upload?
Cody Rutscher
Posted 2018-08-30T22:46:58.773
Reputation: 79
http://meta-extractor.sourceforge.net/ – Alex – 2018-08-30T23:05:33.220
1WAV files or any audio format have no meta-data of the sort you asked. MIDI files have all those things you want but technically they aren't audio files. – None – 2018-08-30T23:34:26.743
So if I am running a site where users upload/download samples in the form of .wav files, what is the best way to get metadata from these samples? Will the users have to tag each individual samples that they upload with all of the relevant metadata? There has to be an easier and more automated way. – Cody Rutscher – 2018-08-30T23:43:07.313
1https://wavmetadata.blogspot.com/ This is a nice guide to start with and also lists some software that can edit it. Again, what you mentioned is typical of MIDI file only. – None – 2018-08-31T01:08:35.913
Im with @GabrielaGarcia on that, parameters: bpm, key, instrument applied to MIDI files only. If your site is PHP based, there is IMHO a good library for metadata extraction from audio/video files
– Alex – 2018-08-31T15:42:06.920its python based. – Cody Rutscher – 2018-08-31T15:45:27.167
Regardless of the way it will be extracted, keep in mind that no method/tool can extract what isn't there. So, your users will have to edit in some way. I think it's doable with ID3 tagging as it allows several editable fields. That said, also important to understand is that ID3 is mostly used for meta-data like Artist, Album, Song Title, Year, barcode, etc. And that any info manually edited can be anything, it may not match the actual content and there's no software that can check for accuracy. – None – 2018-08-31T17:16:40.613
Interesting. If you reference Splice.com you will see that they have metadata attached to .wav samples with tags like genre, instrument, bpm, and key. I would find it hard to believe that users are inputting all of these variables on each upload, but I don't know. – Cody Rutscher – 2018-08-31T18:40:13.327
https://splice.com/blog/mastering-101-preperation/ Quoting: *you may be required to submit ISRC Codes / Metadata (Artists information, Album titles, Track titles) to an aggregator. There’s no easy way to do this but to type it out and double check to make sure that there are no mistakes.* This is exactly what we've been telling you. – None – 2018-09-01T14:38:54.143