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Tonejs / Tone.js

A Web Audio framework for making interactive music in the browser.
https://tonejs.github.io
MIT License
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How to change the mimeType in the Tone.Recorder? #923

Closed shahramSo closed 3 years ago

shahramSo commented 3 years ago

There is an option of mimeType in Tone.Recorder but when I change it as follows: recorder = new Tone.Recorder({ mimeType: 'audio/ogg; codecs=opus' }); so I get the error like this:

"core.js:6456 ERROR Error: Uncaught (in promise): NotSupportedError: Failed to construct 'MediaRecorder': Failed to initialize native MediaRecorder the type provided (audio/ogg; codecs=opus) is not supported."

It's looks like the Tone.Recorder only suports "webm" mimeType as default.

How to change it? Thanks

tambien commented 3 years ago

Tone.Recorder is a very thin wrapper around the MediaRecorder API so it can only support the mime types that the browser supports.

You can check which formats your browser supports using: 

MediaRecorder.isTypeSupported('audio/ogg; codecs=opus')

On Chrome this currently produces false. But looks like opus encoding of a webm wrapper does work: MediaRecorder.isTypeSupported("audio/webm\;codecs=opus")

shahramSo commented 3 years ago

Thank you for you reply; Yes it's correct, I have already seen that chrome browser doesn't support OGG but when I use the MediaRecorder API like an example which I saw on the Codepen, it looks like works correctly. example link is as follows:

https://codepen.io/jakealbaugh/pen/QVqgBE/?editors=1111

So it can be save the audio files as OGG or Wav with this solution but I don't know the saved file is a real OGG or not.