AudioDevice

java.lang.Object
- com.amazonaws.ivs.broadcast.Device
- - com.amazonaws.ivs.broadcast.AudioDevice

Direct Known Subclasses:

AudioSource
```
public abstract class AudioDevice
extends Device
```
Audio input sources must conform to this interface

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class AudioDevice.Format
Audio data representations

static interface AudioDevice.StatsCallback
- Nested classes/interfaces inherited from class com.amazonaws.ivs.broadcast.Device
  Device.Descriptor

Constructor Summary

Constructors
Constructor Description

AudioDevice()

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`abstract int`	`appendBuffer(java.nio.ByteBuffer buffer, long count, long presentationTimeUs)`	Append an audio buffer.
`abstract void`	`setGain(java.lang.Float gain)`	Set the input gain
`abstract void`	`setStatsCallback(AudioDevice.StatsCallback callback)`	Set a callback to receive audio stats for this device.

Methods inherited from class com.amazonaws.ivs.broadcast.Device
getDescriptor, getTag, isValid

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - AudioDevice
```
public AudioDevice()
```
- Method Detail
  - setGain
```
public abstract void setGain(java.lang.Float gain)
```
    Set the input gain
    
    Parameters:
    
    gain - Generally between 0 and 1, but values up to 2 are accepted. Any value over 1 amplifies the signal and may cause clipping.
  - appendBuffer
```
public abstract int appendBuffer(java.nio.ByteBuffer buffer,
                                 long count,
                                 long presentationTimeUs)
```
    Append an audio buffer. This can only be used with Device.Descriptor.DeviceType.USER_AUDIO
    
    Parameters:
    
    buffer - The buffer of audio data to append. This must be allocated as a Direct ByteBuffer
    
    count - The number of bytes to use
    
    presentationTimeUs - The presentation time, in microseconds
    
    Returns:
    
    The number of samples processed
  - setStatsCallback
```
public abstract void setStatsCallback(AudioDevice.StatsCallback callback)
```
    Set a callback to receive audio stats for this device. This will be called on the main thread.
    
    Parameters:
    
    callback - A callback lambda that takes two floats: peak and rms.