AudioRecorder - recording to file

[michalsek]

Closes #

⚠️ Breaking changes ⚠️

• todo

Introduced changes

• Adds option to record to files and makes audio callback optional
• Smaller fixes around types and their exposure
• Fixes issue with showing iOS lock screen controls while using only recorder
• fixes eslint & ts setup

TODO list

• Support for 2 (optional: 2< for external sources) channel input usage
• Fix issue with recorder enforcing sample rate for entire audio system (iOS)
• Refactor callback management to make it more foolproof (circular buffer etc.)
• Remove unnecessary imports
• Double check exported types (events, options, callbacks)
• Record to file on android
• Extract iOS file management to separate class (AudioAPIFile)
• (Optional) merge together IOSAudioRecorder and NativeAudioRecorder
• Recorder stop method should return the filepath
• (Consider) AudioManager should provide API to go through/return list of files recorder with AudioRecorder on the device
• (Optional/If necessary) Allow to use AnalyserNode with AudioRecorder without having to happy-hack-in unnecessary AudioContext
• escape class/method names in this description with proper formatting
• quality options
• offload file writing and callback to separate threads
• write file writing presets for each supported type
• (Optional / Second interation) Recording chunks

Checklist

• Linked relevant issue
• Updated relevant documentation
• Added/Conducted relevant tests
• Performed self-review of the code
• Updated Web Audio API coverage
• Added support for web

[gabimoncha]

big if true 🤘🏼