soundkit

A lightweight, extensible Rust audio toolbox providing:

• Raw sample conversions (16 ↔ 32 bit, 24 bit, float ↔ int)
• Interleave / deinterleave helpers for multi-channel PCM
• WAV I/O: streaming parser (WavStreamProcessor) and generator (generate_wav_buffer)
• Resampling via rubato sinc-kernel interpolator
• Packetized codecs through uniform Encoder / Decoder traits:
  • Opus (using libopus)
  • FLAC (via libflac_sys)
  • MP3 (via mp3lame-sys / mp3lame_encoder)
  • AAC (using fdk-aac)
• WebAssembly bindings (wasm-bindgen) for in-browser audio framing
• Pipeline helpers for framing, encoding, mixing and more

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Features

• Sample-width conversions
  Convert arbitrary raw buffers:
  i16le_to_f32, s32le_to_f32, s24le_to_i32, f32le_to_i16, …

• Channel packing / unpacking
  interleave_vecs_i16 / deinterleave_vecs_i16
  Supports 16, 24, 32-bit and float PCM.

• WAV streaming
  Incremental WAV parser that handles arbitrary chunk boundaries
  Supports classic PCM and extensible (24-bit) headers.
  generate_wav_buffer to write PCM back to RIFF/WAVE.

• Resampling
  downsample_audio using rubato::SincFixedIn for high-quality offline resampling.

• Unified codec interface
  Traits Encoder / Decoder let you plug in any supported format
  Helpers for framing, packetizing, and byte-order management.

• WASM support
  WavToPkt and WavToPcm bindings for streaming audio in the browser.

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