> ## Documentation Index
> Fetch the complete documentation index at: https://docs.zeroruntime.ai/llms.txt
> Use this file to discover all available pages before exploring further.
# Gladia
> JavaScript API reference for the gladia speech-to-text plugin.
## GladiaSTT
Gladia speech-to-text (STT) provider.
### Constructor
```typescript theme={null}
new GladiaSTT(opts: GladiaSTTOptions)
```
Gladia API key used to authenticate requests.
Defaults to the `GLADIA_API_KEY` environment variable, or `null` if unset.
Gladia transcription model to use.
Preferred transcription language(s) as language codes/names. Only the
first entry is used to select the active language. When empty or omitted,
the language defaults to `'english'`.
Enable automatic detection and switching between languages within a single
stream (multilingual audio).
Sample rate, in Hz, of the audio fed into the provider.
Sample rate, in Hz, used for the transcription stream. This value is also
used as the effective sample rate.
Audio encoding format of the input stream (e.g. PCM encodings).
Bit depth of the input audio samples (e.g. `16`).
Number of audio channels in the input stream (e.g. `1` for mono).
Whether to emit interim/partial transcripts as audio is still being
processed, in addition to final transcripts.
### close
```typescript theme={null}
close(): Promise
```
Release any resources held by the provider.
### closeEmitter
```typescript theme={null}
closeEmitter(): Promise
```
Close the emitter: drop all handlers and stop emitting. Waits up to 2 seconds
for in-flight async handlers to settle before returning.
### emit
```typescript theme={null}
emit(event: string, ...args: any[]): void
```
### getRuntimeConfig
```typescript theme={null}
getRuntimeConfig(): Record
```
### listenerCount
```typescript theme={null}
listenerCount(event: string): number
```
### off
```typescript theme={null}
off(event: string, handler: EventHandler): void
```
### on
```typescript theme={null}
on(event: string, handler: EventHandler): EventHandler
```
### once
```typescript theme={null}
once(event: string, handler: EventHandler): EventHandler
```
### onSttTranscript
```typescript theme={null}
onSttTranscript(callback: SttTranscriptCallback): void
```
Register a callback to receive transcripts as they are produced.
### processAudio
```typescript theme={null}
processAudio(_audioFrames: Uint8Array, _language?: string | null, ..._extra: any[]): Promise
```
Process a buffer of audio frames. Override in a custom provider.
### removeAllListeners
```typescript theme={null}
removeAllListeners(event?: string): void
```
### streamTranscribe
```typescript theme={null}
streamTranscribe(_audioStream: AsyncIterable, ..._extra: any[]): AsyncIterator
```
Transcribe a streaming audio source, yielding STTResponses. Override in a custom provider.