Audio effects with Web Audio API

mafintosh / hypervision

P2P Television

MIT License

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Audio effects with Web Audio API #18

Open louiscenter opened 7 years ago

louiscenter commented 7 years ago

It could be worth experimenting with the Web Audio API to provide broadcasters with useful effects for their audio inputs.

Having access to an EQ or a compressor would be handy to even out volume levels for viewers.

vibern0 commented 7 years ago

Hey :wink: Is there anyone working on it ? If no, can I do ? Thanks, have a nice day :+1:

louiscenter commented 7 years ago

@obernardovieira afaik nobody is working on this right now. If you have a spare moment to contribute to this issue, that would be very much appreciated! ^__^

do you have any ideas of what you'd like to do?

vibern0 commented 7 years ago

Good :smile: yeah, I have some time and I would like to contribute. Well, I don't have a specific idea. I need to explore the Web Audio API a bit more. What are your suggestions ? I see you said "an EQ or a compressor".

louiscenter commented 7 years ago

@obernardovieira three audio effects I can think of off the top of my head that may be useful to broadcasters:

EQ (for either boosting or attenuating low-end, mids & high frequencies)
Gate (to prevent unwanted background noise from being audible when broadcaster isn't speaking)
Compressor (to help even out inconsistent audio levels)

The idea is that you would run the input audio signal through the Web Audio API, before it reaches the media recorder. This is where that signal begins: https://github.com/mafintosh/hypervision/blob/master/lib/media-devices.js#L41-L48