The returned Uint8Array is owned by the encoder and MUST be copied before any other encoder methods are called. Each sample must be in the range of -1.0 to 1.0įlushes the encoder and returns the last few encoded samples. You can listen to songs encoded using this format in iTunes, on iPhone and iPad, and on iPod models that come with a dock connector. ParameterĪ channels-length array of Float32Array representing the PCM data to encode. FreeRIP MP3 Converter supports the high quality, lossless compression named FLAC, which is widely used and supported by audiophiles. You may call this method repeatedly to add more samples (e.g. See here for approximate bitrates.Įncodes PCM samples and returns a Uint8Array. Variable Bitrate (VBR) quality for the Vorbis encoder, from -1.0 (worst quality) to 10.0 (best quality). Options for MIME type audio/ogg (Ogg Vorbis): Property See here for details.Ĭonstant bitrate in kbit/s. Variable Bitrate (VBR) quality for the LAME encoder, from 0.0 (best quality) to 9.999 (worst quality). VbrQuality and bitrate are mutually exclusive. Sample rate of data to be encoded, in hertz. Depending on the quality setting used during encoding, the resulting bit rate can vary from around 45 kbps to 500 kbps. winLAME lets you read in audio tracks from CDs or encode. Currently only 1 or 2 channels are supported. winLAME is an easy to use encoder for many audio formats, including MP3, Opus, Ogg Vorbis and more. The options object is a union of common properties and encoder-specific ones. This method can be called at any time to reset the state of the encoder, including after finalize(). WasmMediaEncoder configure(options): voidĬonfigures the encoder. You can cache this module client-side and pass it as the wasm parameter to avoid fetching and compiling it every time.

Optionally, a callback that will be called with the compiled WebAssembly module. ((module: WebAssembly.Module) => void) | undefined Non-data URLs are not supported in Node use node-fetch if this is something you need.

The WASM binaries are included in the package under wasm-media-encoders/wasm/(mp3|ogg).wasm. String | ArrayBuffer | Uint8Array | WebAssembly.ModuleĪ URL, base64 data URL, buffer, or compiled WebAssembly.Module representing the WASM binary for the specific mimeType. Supported values are 'audio/mpeg' (MP3) or 'audio/ogg' (Ogg Vorbis) Tree-shaking on webpack should prevent unused encoders from being included in the final bundle. The first two named exports use inline base-64 encoded WASM binaries (or fetch() from in the case of UMD). then ( ( encoder ) => ) API Named exports: createMp3Encoder(): Promise createOggEncoder(): Promise createEncoder(mimeType, wasm, moduleCallback?): Promise

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