AudioStreamPreview

Godot Plugin to show a waveform in a TextureRect. It's a @tool so it works even inside the editor.

Works asynchronously without using threads (so it's always thread-safe and stable), by using await for frames instead.

• Installation: just download the addons/audio_preview into your Godot 4.x project

• Usage:

  • Drop res://addons/audio_preview/AudioStreamPreview.tscn into your scene
  • Set the stream_path property to the path for the audio file you want (must be .wav for now)
  • Profit Done.

If you find the above too complicated, check the example in res://example/audio_preview.tscn.

Signals

The preview generation happens asynchronously, so the signals below can be used to track the process (once started it can't be aborted).

You don't have to use any signals, they are there just for convenience.

• generation_started -> Emitted when the preview generation process starts

• generation_progress(normalized_progress) -> Emitted periodically to inform about the progress (e.g. to update progress bars). The normalized_progress argument is what it says on the tin: a number between 0.0 and 1.0 (where 1.0 means 100%)

• generation_completed -> Emitted when the process is completed and the TextureRect is now showing the preview