# Audio in API

Give commands to your audio in components.
> Source: https://docs.viam.com/reference/apis/components/audio-in/


<!-- The audio in API allows you to give commands to your [audio in components](/reference/components/audioIn/) for capturing audio.

The audio in components support the following methods: -->

The audio in API supports the following methods:

<!-- prettier-ignore -->
| Method Name | Description |
| ----------- | ----------- |
| [`GetAudio`](/reference/apis/components/audio-in/#getaudio) | Get a stream of audio from the device. |
| [`GetProperties`](/reference/apis/components/audio-in/#getproperties) | Get the audio device’s properties. |
| [`GetGeometries`](/reference/apis/components/audio-in/#getgeometries) | Get all the geometries associated with the audio in component in its current configuration, in the frame of the audio in component. |
| [`Reconfigure`](/reference/apis/components/audio-in/#reconfigure) | Reconfigure this resource. |
| [`DoCommand`](/reference/apis/components/audio-in/#docommand) | Execute model-specific commands that are not otherwise defined by the component API. |
| [`GetStatus`](/reference/apis/components/audio-in/#getstatus) | Get the current status of the audio input component as a map of key-value pairs describing its state. |
| [`GetResourceName`](/reference/apis/components/audio-in/#getresourcename) | Get the `ResourceName` for this audio in component. |
| [`Close`](/reference/apis/components/audio-in/#close) | Safely shut down the resource and prevent further use. |


## API

### GetAudio

Get a stream of audio from the device.

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**Parameters:**

- `codec` ([str](https://docs.python.org/3/library/stdtypes.html#text-sequence-type-str)) (required): The desired codec of the returned audio data.
- `duration_seconds` ([float](https://docs.python.org/3/library/stdtypes.html#numeric-types-int-float-complex)) (required): duration of the stream. 0 = indefinite stream.
- `previous_timestamp_ns` ([int](https://docs.python.org/3/library/stdtypes.html#numeric-types-int-float-complex)) (required): starting timestamp in nanoseconds for recording continuity.
- `extra` (Mapping[[str](https://docs.python.org/3/library/stdtypes.html#text-sequence-type-str), Any]) (optional): Extra options to pass to the underlying RPC call.

**Returns:**

- None.

**Example:**

```python {class="line-numbers linkable-line-numbers"}
my_audio_in = AudioIn.from_robot(robot=machine, name="my_audio_in")

stream = await my_audio_in.get_audio(
    codec=AudioCodec.PCM16,
    duration_seconds=10.0,
    previous_timestamp_ns=0
)
```

For more information, see the [Python SDK Docs](https://python.viam.dev/autoapi/viam/components/audio_in/client/index.html#viam.components.audio_in.client.AudioInClient.get_audio).

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**Parameters:**

- `ctx` [(Context)](https://pkg.go.dev/context#Context): A Context carries a deadline, a cancellation signal, and other values across API boundaries.
- `codec` [(string)](https://pkg.go.dev/builtin#string)
- `durationSeconds` [(float32)](https://pkg.go.dev/builtin#float32)
- `previousTimestampNs` [(int64)](https://pkg.go.dev/builtin#int64)
- `extra` [(map[string]interface{})](https://go.dev/blog/maps): Extra options to pass to the underlying RPC call.

**Returns:**

- `chan` [(*AudioChunk)](https://pkg.go.dev/go.viam.com/rdk/components/audioin#AudioChunk)
- [(error)](https://pkg.go.dev/builtin#error): An error, if one occurred.

For more information, see the [Go SDK Docs](https://pkg.go.dev/go.viam.com/rdk/components/audioin#AudioIn).

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**Parameters:**

- `codec` (string) (required)
- `durationSeconds` (number) (required)
- `previousTimestamp` (bigint) (optional)
- `extra` (None) (optional)
- `callOptions` (CallOptions) (optional)

**Returns:**

- (AsyncIterable<[AudioChunk](https://ts.viam.dev/interfaces/AudioChunk.html)>)

**Example:**

```ts {class="line-numbers linkable-line-numbers"}
const audioIn = new VIAM.AudioInClient(machine, 'my_audio_in');
const stream = audioIn.getAudio(VIAM.AudioCodec.PCM16, 3, 0n, {});
```

For more information, see the [TypeScript SDK Docs](https://ts.viam.dev/classes/AudioInClient.html#getaudio).

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**Parameters:**

- `codec` [String](https://api.flutter.dev/flutter/dart-core/String-class.html) (optional)
- `durationSeconds` [double](https://api.flutter.dev/flutter/dart-core/double-class.html)? (optional)
- `previousTimestampNanoseconds` [Int64](https://pub.dev/documentation/fixnum/1.1.1/fixnum/Int64-class.html)? (optional)
- `extra` [Map](https://api.flutter.dev/flutter/dart-core/Map-class.html)<[String](https://api.flutter.dev/flutter/dart-core/String-class.html), dynamic>? (optional)

**Returns:**

- [Stream](https://api.flutter.dev/flutter/dart-async/Stream-class.html)<[GetAudioResponse](https://flutter.viam.dev/viam_protos.component.audioin/GetAudioResponse-class.html)>

For more information, see the [Flutter SDK Docs](https://flutter.viam.dev/viam_sdk/AudioInClient/getAudio.html).

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### GetProperties

Get the audio device’s properties.

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**Parameters:**

- `timeout` ([float](https://docs.python.org/3/library/stdtypes.html#numeric-types-int-float-complex)) (optional): An option to set how long to wait (in seconds) before calling a time-out and closing the underlying RPC call.

**Returns:**

- ([viam.components.audio_in.audio_in.AudioIn.Properties](https://python.viam.dev/autoapi/viam/components/audio_in/audio_in/index.html#viam.components.audio_in.audio_in.AudioIn.Properties)): :   The properties of the audio in device.

**Example:**

```python {class="line-numbers linkable-line-numbers"}
my_audio_in = AudioIn.from_robot(robot=machine, name="my_audio_in")
properties = await my_audio_in.get_properties()
```

For more information, see the [Python SDK Docs](https://python.viam.dev/autoapi/viam/components/audio_in/client/index.html#viam.components.audio_in.client.AudioInClient.get_properties).

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**Parameters:**

- `ctx` [(Context)](https://pkg.go.dev/context#Context): A Context carries a deadline, a cancellation signal, and other values across API boundaries.
- `extra` [(map[string]interface{})](https://go.dev/blog/maps): Extra options to pass to the underlying RPC call.

**Returns:**

- [(utils.Properties)](https://pkg.go.dev/go.viam.com/rdk/utils#Properties)
- [(error)](https://pkg.go.dev/builtin#error): An error, if one occurred.

For more information, see the [Go SDK Docs](https://pkg.go.dev/go.viam.com/rdk/components/audioin#AudioIn).

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**Parameters:**

- `extra` (None) (optional)
- `callOptions` (CallOptions) (optional)

**Returns:**

- (Promise< { numChannels: number; sampleRateHz: number; supportedCodecs: string[] }, >)

**Example:**

```ts {class="line-numbers linkable-line-numbers"}
const audioIn = new VIAM.AudioInClient(machine, 'my_audio_in');
const properties = await audioIn.getProperties();
```

For more information, see the [TypeScript SDK Docs](https://ts.viam.dev/classes/AudioInClient.html#getproperties).

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**Parameters:**

- `extra` [Map](https://api.flutter.dev/flutter/dart-core/Map-class.html)<[String](https://api.flutter.dev/flutter/dart-core/String-class.html), dynamic>? (optional)

**Returns:**

- [Future](https://api.flutter.dev/flutter/dart-async/Future-class.html)<[GetPropertiesResponse](https://flutter.viam.dev/viam_protos.common.common/GetPropertiesResponse-class.html)>

For more information, see the [Flutter SDK Docs](https://flutter.viam.dev/viam_sdk/AudioInClient/getProperties.html).

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### GetGeometries

Get all the geometries associated with the audio in component in its current configuration, in the [frame](/reference/services/frame-system/) of the audio in component.
The [motion](/reference/services/motion/) and [navigation](/reference/services/navigation/) services use the relative position of inherent geometries to configured geometries representing obstacles for collision detection and obstacle avoidance while motion planning.

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**Parameters:**

- `extra` (Mapping[[str](https://docs.python.org/3/library/stdtypes.html#text-sequence-type-str), Any]) (optional): Extra options to pass to the underlying RPC call.
- `timeout` ([float](https://docs.python.org/3/library/stdtypes.html#numeric-types-int-float-complex)) (optional): An option to set how long to wait (in seconds) before calling a time-out and closing the underlying RPC call.

**Returns:**

- ([List[viam.proto.common.Geometry]](https://python.viam.dev/autoapi/viam/proto/common/index.html#viam.proto.common.Geometry)): :   The geometries associated with the Component.

**Example:**

```python {class="line-numbers linkable-line-numbers"}
my_audio_in = AudioIn.from_robot(robot=machine, name="my_audio_in")
geometries = await my_audio_in.get_geometries()

if geometries:
    # Get the center of the first geometry
    print(f"Pose of the first geometry's centerpoint: {geometries[0].center}")
```

For more information, see the [Python SDK Docs](https://python.viam.dev/autoapi/viam/components/audio_in/client/index.html#viam.components.audio_in.client.AudioInClient.get_geometries).

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### Reconfigure

Reconfigure this resource.
Reconfigure must reconfigure the resource atomically and in place.

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**Parameters:**

- `ctx` [(Context)](https://pkg.go.dev/context#Context): A Context carries a deadline, a cancellation signal, and other values across API boundaries.
- `deps` [(Dependencies)](https://pkg.go.dev/go.viam.com/rdk/resource#Dependencies): The resource dependencies.
- `conf` [(Config)](https://pkg.go.dev/go.viam.com/rdk/resource#Config): The resource configuration.

**Returns:**

- [(error)](https://pkg.go.dev/builtin#error): An error, if one occurred.

For more information, see the [Go SDK Docs](https://pkg.go.dev/go.viam.com/rdk/resource#Resource).

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### DoCommand

Execute model-specific commands that are not otherwise defined by the component API.
Most models do not implement `DoCommand`.
Any available model-specific commands should be covered in the model's documentation.
If you are implementing your own arm and want to add features that have no corresponding built-in API method, you can implement them with [`DoCommand`](/reference/sdks/docommand/).

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**Parameters:**

- `command` (Mapping[[str](https://docs.python.org/3/library/stdtypes.html#text-sequence-type-str), ValueTypes]) (required): The command to execute.
- `timeout` ([float](https://docs.python.org/3/library/stdtypes.html#numeric-types-int-float-complex)) (optional): An option to set how long to wait (in seconds) before calling a time-out and closing the underlying RPC call.

**Returns:**

- (Mapping[[str](https://docs.python.org/3/library/stdtypes.html#text-sequence-type-str), viam.utils.ValueTypes]): :   Result of the executed command.

**Raises:**

- (NotImplementedError): Raised if the Resource does not support arbitrary commands.

**Example:**

```python {class="line-numbers linkable-line-numbers"}
my_audio_in = AudioIn.from_robot(robot=machine, name="my_audio_in")
command = {"cmd": "test", "data1": 500}
result = await my_audio_in.do_command(command)
```

For more information, see the [Python SDK Docs](https://python.viam.dev/autoapi/viam/components/audio_in/client/index.html#viam.components.audio_in.client.AudioInClient.do_command).

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**Parameters:**

- `ctx` [(Context)](https://pkg.go.dev/context#Context): A Context carries a deadline, a cancellation signal, and other values across API boundaries.
- `cmd` [(map[string]interface{})](https://go.dev/blog/maps): The command to execute.

**Returns:**

- [(map[string]interface{})](https://pkg.go.dev/builtin#string): The command response.
- [(error)](https://pkg.go.dev/builtin#error): An error, if one occurred.

**Example:**

```go {class="line-numbers linkable-line-numbers"}
myAudioIn, err := audio_in.FromProvider(machine, "my_audio_in")

command := map[string]interface{}{"cmd": "test", "data1": 500}
result, err := myAudioIn.DoCommand(context.Background(), command)
```

For more information, see the [Go SDK Docs](https://pkg.go.dev/go.viam.com/rdk/resource#Resource).

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**Parameters:**

- `command` ([Struct](https://ts.viam.dev/classes/Struct.html)) (required): The command to execute. Accepts either a [Struct](https://ts.viam.dev/classes/Struct.html) or a plain object,
  which will be converted automatically.
- `callOptions` (CallOptions) (optional)

**Returns:**

- (Promise<[JsonValue](https://ts.viam.dev/types/JsonValue.html)>)

**Example:**

```ts {class="line-numbers linkable-line-numbers"}
// Plain object (recommended)
const result = await resource.doCommand({
  myCommand: { key: 'value' },
});

// Struct (still supported)
import { Struct } from '@viamrobotics/sdk';

const result = await resource.doCommand(Struct.fromJson({ myCommand: { key: 'value' } }));
```

For more information, see the [TypeScript SDK Docs](https://ts.viam.dev/classes/AudioInClient.html#docommand).

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**Parameters:**

- `command` [Map](https://api.flutter.dev/flutter/dart-core/Map-class.html)<[String](https://api.flutter.dev/flutter/dart-core/String-class.html), dynamic> (required)

**Returns:**

- [Future](https://api.flutter.dev/flutter/dart-async/Future-class.html)<[Map](https://api.flutter.dev/flutter/dart-core/Map-class.html)<[String](https://api.flutter.dev/flutter/dart-core/String-class.html), dynamic>\>

**Example:**

```dart {class="line-numbers linkable-line-numbers"}
// Example using doCommand with an arm component
const command = {'cmd': 'test', 'data1': 500};
var result = myArm.doCommand(command);
```

For more information, see the [Flutter SDK Docs](https://flutter.viam.dev/viam_sdk/AudioInClient/doCommand.html).

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### GetStatus

Get the current status of the audio input component as a map of key-value pairs describing its state.

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**Parameters:**

- `timeout` ([float](https://docs.python.org/3/library/stdtypes.html#numeric-types-int-float-complex)) (optional): An option to set how long to wait (in seconds) before calling a time-out and closing the underlying RPC call.

**Returns:**

- (Mapping[[str](https://docs.python.org/3/library/stdtypes.html#text-sequence-type-str), viam.utils.ValueTypes]): :   The status of the component.

**Example:**

```python {class="line-numbers linkable-line-numbers"}
status = await component.get_status()
```

For more information, see the [Python SDK Docs](https://python.viam.dev/autoapi/viam/components/audio_in/client/index.html#viam.components.audio_in.client.AudioInClient.get_status).

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**Parameters:**

- `ctx` [(Context)](https://pkg.go.dev/context#Context): A Context carries a deadline, a cancellation signal, and other values across API boundaries.

**Returns:**

- [(map[string]interface{})](https://pkg.go.dev/builtin#string)
- [(error)](https://pkg.go.dev/builtin#error): An error, if one occurred.

**Example:**

```go {class="line-numbers linkable-line-numbers"}
myAudioIn, err := audioin.FromProvider(machine, "my_audio_in")

status, err := myAudioIn.Status(context.Background())
```

For more information, see the [Go SDK Docs](https://pkg.go.dev/go.viam.com/rdk/resource#Resource).

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**Parameters:**

- `callOptions` (CallOptions) (optional)

**Returns:**

- (Promise<[JsonValue](https://ts.viam.dev/types/JsonValue.html)>)

For more information, see the [TypeScript SDK Docs](https://ts.viam.dev/classes/AudioInClient.html#getstatus).

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**Parameters:**

- None.

**Returns:**

- [Future](https://api.flutter.dev/flutter/dart-async/Future-class.html)<[Map](https://api.flutter.dev/flutter/dart-core/Map-class.html)<[String](https://api.flutter.dev/flutter/dart-core/String-class.html), dynamic>\>

For more information, see the [Flutter SDK Docs](https://flutter.viam.dev/viam_sdk/AudioInClient/getStatus.html).

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### GetResourceName

Get the `ResourceName` for this audio in component.

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**Parameters:**

- `name` ([str](https://docs.python.org/3/library/stdtypes.html#text-sequence-type-str)) (required): The name of the Resource.

**Returns:**

- ([viam.proto.common.ResourceName](https://python.viam.dev/autoapi/viam/proto/common/index.html#viam.proto.common.ResourceName)): :   The ResourceName of this Resource.

**Example:**

```python {class="line-numbers linkable-line-numbers"}
my_audio_in_name = AudioIn.get_resource_name("my_audio_in")
```

For more information, see the [Python SDK Docs](https://python.viam.dev/autoapi/viam/components/audio_in/client/index.html#viam.components.audio_in.client.AudioInClient.get_resource_name).

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**Parameters:**

- None.

**Returns:**

- [(Name)](https://pkg.go.dev/go.viam.com/rdk@v0.89.0/resource#Name)

**Example:**

```go {class="line-numbers linkable-line-numbers"}
myAudioIn, err := audioin.FromProvider(machine, "my_audio_in")

err = myAudioIn.Name()
```

For more information, see the [Go SDK Docs](https://pkg.go.dev/go.viam.com/rdk/resource#Resource).

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**Parameters:**

- None.

**Returns:**

- (string): The name of the resource.

**Example:**

```ts {class="line-numbers linkable-line-numbers"}
audio_in.name
```

For more information, see the [TypeScript SDK Docs](https://ts.viam.dev/classes/AudioInClient.html#name).

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### Close

Safely shut down the resource and prevent further use.

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**Parameters:**

- None.

**Returns:**

- None.

**Example:**

```python {class="line-numbers linkable-line-numbers"}
my_audio_in = AudioIn.from_robot(robot=machine, name="my_audio_in")
await my_audio_in.close()
```

For more information, see the [Python SDK Docs](https://python.viam.dev/autoapi/viam/components/audio_in/client/index.html#viam.components.audio_in.client.AudioInClient.close).

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**Parameters:**

- `ctx` [(Context)](https://pkg.go.dev/context#Context): A Context carries a deadline, a cancellation signal, and other values across API boundaries.

**Returns:**

- [(error)](https://pkg.go.dev/builtin#error): An error, if one occurred.

**Example:**

```go {class="line-numbers linkable-line-numbers"}
myAudioIn, err := audioin.FromProvider(machine, "my_audio_in")

err = myAudioIn.Close(context.Background())
```

For more information, see the [Go SDK Docs](https://pkg.go.dev/go.viam.com/rdk/resource#Resource).

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