> Fetch clean Markdown by appending `.md` to any page URL under https://signalwire.com/docs or requesting it with the HTTP header `Accept: text/markdown`. The root index at https://signalwire.com/docs/llms.txt lists the available documentation indexes.

# Denoise

The `<Denoise>` verb enables or disables noise reduction for call audio inbound to SignalWire. It
reduces noise on calls before dialing into a conference or forwarding to another number.

## Verb attributes

This verb does not accept attributes.

## Nesting

No other verbs can be nested within `<Denoise>`.

## Examples

### Enable noise reduction

This example illustrates enabling noise reduction on an inbound phone call prior to forwarding the call.

```xml
<?xml version="1.0" encoding="UTF-8"?>
<Response>
    <Denoise>on</Denoise>
    <Dial><Sip>sip:user@example.com;transport=udp</Sip></Dial>
</Response>
```

### Disable noise reduction

This example illustrates disabling noise reduction prior to recording and transcribing.

```xml
<?xml version="1.0" encoding="UTF-8"?>
<Response>
    <Denoise>off</Denoise>
    <Record timeout="5" transcribe="true"/>
</Response>
```