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

Properties for audio pre-mixer settings.

- Stability: [Experimental](/cdk/api/stability.html)
- Source: [`lib/audio-selector.ts`](https://github.com/aws/aws-cdk/blob/v2.275.0-alpha.0/packages/@aws-cdk/aws-medialive-alpha/lib/audio-selector.ts#L156)

## Example

```ts
// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import * as medialive_alpha from '@aws-cdk/aws-medialive-alpha';

declare const audioNormalizationAlgorithm: medialive_alpha.AudioNormalizationAlgorithm;
declare const audioNormalizationAlgorithmControl: medialive_alpha.AudioNormalizationAlgorithmControl;
declare const audioNormalizationPeakCalculation: medialive_alpha.AudioNormalizationPeakCalculation;
const audioPreMixerSettingsProps: medialive_alpha.AudioPreMixerSettingsProps = {
  audioNormalizationSettings: {
    algorithm: audioNormalizationAlgorithm,
    algorithmControl: audioNormalizationAlgorithmControl,
    peakCalculation: audioNormalizationPeakCalculation,
    peakLimiterThreshold: 123,
    targetLkfs: 123,
  },
  channels: 123,
  gainDb: 123,
  remixSettings: {
    channelMappings: [{
      inputChannelLevels: [{
        inputChannel: 123,

        // the properties below are optional
        gain: 123,
      }],
      outputChannel: 123,
    }],

    // the properties below are optional
    channelsIn: 123,
    channelsOut: 123,
  },
};
```

## Properties

- `audioNormalizationSettings`: [AudioNormalizationSettings](/cdk/api/v2/docs/@aws-cdk_aws-medialive-alpha.AudioNormalizationSettings.html) — Audio normalization settings for loudness control.

  **Default:** no normalization

- `channels`: number — The number of audio channels to remix to.

  **Default:** pass through original channel count

  Overridden by `remixSettings` if specified.

- `gainDb`: number — The gain adjustment in decibels (dB).

  **Default:** no gain adjustment

- `remixSettings`: [RemixSettings](/cdk/api/v2/docs/@aws-cdk_aws-medialive-alpha.RemixSettings.html) — Remix settings for fine-grained channel mapping and gain levels.

  **Default:** no remixing