seeking method for simultaneous video speed and voice Change

[KimDandan]

Hello,

I'm looking to implement the following features:

• Adjusting the speed of videos (which include audio).
• Changing the audio's voice (for instance, making a human voice sound like a robot).

Here's the approach I've considered:

• Use SimpleExoPlayer's setPlaybackParameters function for speed adjustment.
• For voice change, extend the BaseAudioProcessor and manipulate the inputBuffer.

Is it possible to implement it this way? Both features must work together. If there's a better approach or any recommendations, I'd greatly appreciate your guidance.

Thank you.

[tonihei]

This is untested, but I think when you build you own DefaultAudioSink in DefaultRenderersFactory.buildAudioSink, you can specify a custom AudioProcessorChain via DefaultAudioSink.Builder.setAudioProcessorChain. This allows you to intercept the call to AudioProcessorChain.applyPlaybackParameters to set the speed on the SonicAudioProcessor and also reconfigure your custom audio processor at the same time.