import { Meta } from '@storybook/blocks';

<Meta title="SDK Hooks/useLocalAudioInputActivity" />

# useLocalAudioInputActivity

The `useLocalAudioInputActivity` calls the provided callback with the current microphone input decimal value.

You can use this hook to develop a custom microphone activity preview component. Be aware that the update is high-frequency, so you should be careful when storing it in React

## Parameters

This hook accepts a single parameter:

```javascript
// The current audio input activity in decimal format
- cb: (decimal: number) => void;
```

## Importing

```javascript
import { useLocalAudioInputActivity } from 'amazon-chime-sdk-component-library-react';
```

## Usage

The hook depends on the `AudioVideoProvider`. If you are using `MeetingProvider`, it is rendered by default.

```jsx
import React, { useRef } from 'react';
import {
  MeetingProvider,
  useLocalAudioInputActivity,
} from 'amazon-chime-sdk-component-library-react';

const App = () => (
  <MeetingProvider>
    <CustomMicrophoneActivity />
  </MeetingProvider>
);

const CustomMicrophoneActivity = () => {
  const callback = (decimal: number) => {
    console.log('Current audio level: ', decimal);
  };
  useLocalAudioInputActivity(callback);
};
```

### Dependencies

- `MeetingProvider`
- `AudioVideoProvider`, If you are using `MeetingProvider`, `AudioVideoProvider` is rendered by default
- `useAudioInputs`