From the API documentation, audio looks pretty barebones (e.g. I don't see anything about any synthesis or filtering nodes, so it seems to be limited to loading audio files), but the inclusion of a SpatialAudioSink is encouraging.
there's also the option of using a different audio engine, if you're looking for a specific feature. for example bevy_kira_audio does this, though it may also be lacking the advanced features you mentioned.