io.spokestack.spokestack.asr

Class SpokestackCloudRecognizer

java.lang.Object

io.spokestack.spokestack.asr.SpokestackCloudRecognizer

All Implemented Interfaces:

SpeechProcessor, AutoCloseable

public final class SpokestackCloudRecognizer
extends Object
implements SpeechProcessor

Spokestack cloud speech recognizer

This pipeline component streams audio samples to Spokestack's cloud-based ASR service for speech recognition. When the speech context is triggered, the recognizer begins streaming buffered frames to the API for recognition. Once the speech context becomes inactive, the recognizer completes the API request and raises a RECOGNIZE event along with the audio transcript and confidence.

The Spokestack recognizer supports the following configuration properties:

• spokestack-id (string, required): The client ID used for synthesis requests.
• spokestack-secret (string, required): The client secret used to sign synthesis requests.
• sample-rate (integer): audio sampling rate, in Hz

Constructor Summary

Constructors

Constructor and Description
SpokestackCloudRecognizer(SpeechConfig speechConfig) initializes a new recognizer instance.
SpokestackCloudRecognizer(SpeechConfig speechConfig, SpokestackCloudClient.Builder builder) initializes a new recognizer instance, useful for testing.

Method Summary

Modifier and Type	Method and Description
void	close() releases the resources associated with the recognizer.
void	process(SpeechContext speechContext, ByteBuffer frame) processes a frame of audio.
void	reset() resets all state internal to the stage.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SpokestackCloudRecognizer

public SpokestackCloudRecognizer(SpeechConfig speechConfig)

initializes a new recognizer instance.

Parameters:

speechConfig - Spokestack speech configuration

SpokestackCloudRecognizer

public SpokestackCloudRecognizer(SpeechConfig speechConfig,
                                 SpokestackCloudClient.Builder builder)

initializes a new recognizer instance, useful for testing.

Parameters:

speechConfig - Spokestack speech configuration

builder - speech client builder

Method Detail

reset

public void reset()

Description copied from interface: SpeechProcessor

resets all state internal to the stage.

Specified by:

reset in interface SpeechProcessor

close

public void close()

releases the resources associated with the recognizer.

Specified by:

close in interface AutoCloseable

process

public void process(SpeechContext speechContext,
                    ByteBuffer frame)

processes a frame of audio.

Specified by:

process in interface SpeechProcessor

Parameters:

speechContext - the current speech context

frame - the audio frame to detect