Function pan

pan(chain: FilterChain, layoutExpr: string): FilterChain
Pan / remix audio channels using a channel layout expression.
Parameters
- chain: FilterChain
- layoutExpr: string
Returns FilterChain
Example
```
pan(chain, 'stereo|c0=FL|c1=FR')
```
Example
```
pan(chain, 'stereo|c0=0.5*c0+0.5*c1|c1=0.5*c0+0.5*c1')
```
- Defined in src/filters/audio/index.ts:226