Performs audio classification. **Signature:** export declare class AudioClassifier extends AudioTaskRunner ## Methods | Method | Modifiers | Description | |---|---|---| | [createFromOptions(wasmFileset, audioClassifierOptions)](https://developers.google.com/edge/api/mediapipe/js/tasks-audio.audioclassifier#audioclassifiercreatefromoptions) | `static` | Initializes the Wasm runtime and creates a new audio classifier from the provided options. | | [createFromModelBuffer(wasmFileset, modelAssetBuffer)](https://developers.google.com/edge/api/mediapipe/js/tasks-audio.audioclassifier#audioclassifiercreatefrommodelbuffer) | `static` | Initializes the Wasm runtime and creates a new audio classifier based on the provided model asset buffer. | | [createFromModelPath(wasmFileset, modelAssetPath)](https://developers.google.com/edge/api/mediapipe/js/tasks-audio.audioclassifier#audioclassifiercreatefrommodelpath) | `static` | Initializes the Wasm runtime and creates a new audio classifier based on the path to the model asset. | | [setOptions(options)](https://developers.google.com/edge/api/mediapipe/js/tasks-audio.audioclassifier#audioclassifiersetoptions) | | Sets new options for the audio classifier. Calling `setOptions()` with a subset of options only affects those options. You can reset an option back to its default value by explicitly setting it to `undefined`. | | [classify(audioData, sampleRate)](https://developers.google.com/edge/api/mediapipe/js/tasks-audio.audioclassifier#audioclassifierclassify) | | Performs audio classification on the provided audio clip and waits synchronously for the response. | ## AudioClassifier.createFromOptions() {#audioclassifiercreatefromoptions} Initializes the Wasm runtime and creates a new audio classifier from the provided options. **Signature:** static createFromOptions(wasmFileset: WasmFileset, audioClassifierOptions: AudioClassifierOptions): Promise; ### Parameters | Parameter | Type | Description | |---|---|---| | wasmFileset | WasmFileset | A configuration object that provides the location of the Wasm binary and its loader. | | audioClassifierOptions | AudioClassifierOptions | The options for the audio classifier. Note that either a path to the model asset or a model buffer needs to be provided (via `baseOptions`). | **Returns:** Promise\ ## AudioClassifier.createFromModelBuffer() {#audioclassifiercreatefrommodelbuffer} Initializes the Wasm runtime and creates a new audio classifier based on the provided model asset buffer. **Signature:** static createFromModelBuffer(wasmFileset: WasmFileset, modelAssetBuffer: Uint8Array | ReadableStreamDefaultReader): Promise; ### Parameters | Parameter | Type | Description | |---|---|---| | wasmFileset | WasmFileset | A configuration object that provides the location of the Wasm binary and its loader. | | modelAssetBuffer | Uint8Array \| ReadableStreamDefaultReader | An array or a stream containing a binary representation of the model. | **Returns:** Promise\ ## AudioClassifier.createFromModelPath() {#audioclassifiercreatefrommodelpath} Initializes the Wasm runtime and creates a new audio classifier based on the path to the model asset. **Signature:** static createFromModelPath(wasmFileset: WasmFileset, modelAssetPath: string): Promise; ### Parameters | Parameter | Type | Description | |---|---|---| | wasmFileset | WasmFileset | A configuration object that provides the location of the Wasm binary and its loader. | | modelAssetPath | string | The path to the model asset. | **Returns:** Promise\ ## AudioClassifier.setOptions() {#audioclassifiersetoptions} Sets new options for the audio classifier. Calling `setOptions()` with a subset of options only affects those options. You can reset an option back to its default value by explicitly setting it to `undefined`. **Signature:** setOptions(options: AudioClassifierOptions): Promise; ### Parameters | Parameter | Type | Description | |---|---|---| | options | AudioClassifierOptions | The options for the audio classifier. | **Returns:** Promise\ ## AudioClassifier.classify() {#audioclassifierclassify} Performs audio classification on the provided audio clip and waits synchronously for the response. **Signature:** classify(audioData: Float32Array, sampleRate?: number): AudioClassifierResult[]; ### Parameters | Parameter | Type | Description | |---|---|---| | audioData | Float32Array | An array of raw audio capture data, like from a call to `getChannelData()` on an AudioBuffer. | | sampleRate | number | The sample rate in Hz of the provided audio data. If not set, defaults to the sample rate set via `setDefaultSampleRate()` or `48000` if no custom default was set. | **Returns:** AudioClassifierResult\[\]