> **Experimental**
>
> `@aws-cdk/aws-medialive-alpha` is an [**experimental**](/stability) (alpha) package: its API may change in any release, without a major version bump.
# GlobalConfiguration

Global configuration settings that apply to the entire channel.

- Stability: [Experimental](/cdk/api/stability.html)
- Source: [`lib/channel.ts`](https://github.com/aws/aws-cdk/blob/v2.275.0-alpha.0/packages/@aws-cdk/aws-medialive-alpha/lib/channel.ts#L741)

## Example

```ts
declare const stack: Stack;
declare const input: medialive.IInput;
declare const bucket: s3.IBucket;
declare const video: medialive.EncodeConfiguration;
declare const audio: medialive.EncodeConfiguration;

new medialive.Channel(stack, 'Channel', {
  inputs: [{ input }],
  timecodeConfig: {
    source: medialive.TimecodeSource.EMBEDDED,
  },
  globalConfiguration: {
    outputLocking: medialive.OutputLocking.epoch(),
    outputTimingSource: medialive.OutputTimingSource.INPUT_CLOCK,
  },
  outputGroups: [
    medialive.OutputGroupConfiguration.hls({
      name: 'hls',
      destinations: [medialive.OutputDestination.toBucket(bucket, 'live/stream')],
      outputs: [{ encodes: [video, audio], outputName: 'hls_out' }],
    }),
  ],
});
```

## Properties

- `initialAudioGain`: number — The initial audio gain for the channel (-60 to 60 dB).

  **Default:** service default

- `inputEndAction`: [InputEndAction](/cdk/api/v2/docs/@aws-cdk_aws-medialive-alpha.InputEndAction.html) — Action to take when the current input completes.

  **Default:** service default

- `inputLossBehavior`: [InputLossBehavior](/cdk/api/v2/docs/@aws-cdk_aws-medialive-alpha.InputLossBehavior.html) — Behavior on input loss (substitute black / repeat frame, then a color or slate image).

  **Default:** service default

- `outputLocking`: [OutputLocking](/cdk/api/v2/docs/@aws-cdk_aws-medialive-alpha.OutputLocking.html) — How MediaLive pipelines are synchronised — `OutputLocking.pipeline()`, `OutputLocking.epoch()`, or `OutputLocking.disabled()`.

  **Default:** service default

- `outputTimingSource`: [OutputTimingSource](/cdk/api/v2/docs/@aws-cdk_aws-medialive-alpha.OutputTimingSource.html) — Source of output timing.

  **Default:** service default

- `supportLowFramerateInputs`: boolean = false — Enable support for low framerate inputs (e.g. music channels with less than 1 fps).