# OpenMicrophoneResponse.Builder

# OpenMicrophoneResponse.Builder

Artifact:[androidx.car.app:app](https://developer.android.com/jetpack/androidx/releases/car-app)  
[View Source](https://cs.android.com/search?q=file:androidx/car/app/media/OpenMicrophoneResponse.java+class:androidx.car.app.media.OpenMicrophoneResponse.Builder)  
Added in[1.3.0](https://developer.android.com/jetpack/androidx/releases/car-app#1.3.0)

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Kotlin\|[Java](https://developer.android.com/reference/androidx/car/app/media/OpenMicrophoneResponse.Builder "View this page in Java")

<br />

```
class OpenMicrophoneResponse.Builder
```

<br />

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A builder for[OpenMicrophoneResponse](https://developer.android.com/reference/kotlin/androidx/car/app/media/OpenMicrophoneResponse)s.

## Summary

|                                                                                                                                  ### Public constructors                                                                                                                                   |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| [Builder](https://developer.android.com/reference/kotlin/androidx/car/app/media/OpenMicrophoneResponse.Builder#Builder(androidx.car.app.media.CarAudioCallback))`(callback: `[CarAudioCallback](https://developer.android.com/reference/kotlin/androidx/car/app/media/CarAudioCallback)`)` |

|                                                          ### Public functions                                                          |
|----------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| [OpenMicrophoneResponse](https://developer.android.com/reference/kotlin/androidx/car/app/media/OpenMicrophoneResponse)                 | [build](https://developer.android.com/reference/kotlin/androidx/car/app/media/OpenMicrophoneResponse.Builder#build())`()` Builds the[OpenMicrophoneResponse](https://developer.android.com/reference/kotlin/androidx/car/app/media/OpenMicrophoneResponse)for this builder.                                                                                                                                                                                                                                  |
| [OpenMicrophoneResponse.Builder](https://developer.android.com/reference/kotlin/androidx/car/app/media/OpenMicrophoneResponse.Builder) | [setCarMicrophoneDescriptor](https://developer.android.com/reference/kotlin/androidx/car/app/media/OpenMicrophoneResponse.Builder#setCarMicrophoneDescriptor(android.os.ParcelFileDescriptor))`(` ` carMicrophoneDescriptor: `[ParcelFileDescriptor](https://developer.android.com/reference/android/os/ParcelFileDescriptor.html) `)` Sets the[ParcelFileDescriptor](https://developer.android.com/reference/android/os/ParcelFileDescriptor.html)that is to be used to read microphone bytes from the car. |

## Public constructors

### Builder

Added in[1.3.0](https://developer.android.com/jetpack/androidx/releases/car-app#1.3.0)  

```
Builder(callback: CarAudioCallback)
```  

## Public functions

### build

Added in[1.3.0](https://developer.android.com/jetpack/androidx/releases/car-app#1.3.0)  

```
fun build(): OpenMicrophoneResponse
```

Builds the[OpenMicrophoneResponse](https://developer.android.com/reference/kotlin/androidx/car/app/media/OpenMicrophoneResponse)for this builder.  

### setCarMicrophoneDescriptor

Added in[1.3.0](https://developer.android.com/jetpack/androidx/releases/car-app#1.3.0)  

```
fun setCarMicrophoneDescriptor(
    carMicrophoneDescriptor: ParcelFileDescriptor
): OpenMicrophoneResponse.Builder
```

Sets the[ParcelFileDescriptor](https://developer.android.com/reference/android/os/ParcelFileDescriptor.html)that is to be used to read microphone bytes from the car.

This is only needed in projected case, where the car microphone comes from the host.