# Ducking audio input instead of cutting stream?

**URL:** <https://discourse.libretime.org/t/ducking-audio-input-instead-of-cutting-stream/661>\
**Category:** Get Help\
**Created:** [September 5, 2020, 4:52am UTC](https://discourse.libretime.org/t/ducking-audio-input-instead-of-cutting-stream/661 "2020-09-05T04:52:49Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![ppriede](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.libretime.org/ppriede/32/382_2.png) [@ppriede](https://discourse.libretime.org/u/ppriede)\
**Post date:** [September 5, 2020, 4:52am UTC](https://discourse.libretime.org/t/ducking-audio-input-instead-of-cutting-stream/661/1 "2020-09-05T04:52:49Z")

</div>

I like to know if I can change some part of LibreTime code to do and “audio ducking” (lower the volume of the main stream) instead of cutting and replacing the incoming /master

Which part of the code is in control of the change in the incoming “/master” signal and the main stream?  
Is possible using liquidsoap?

In my head,  
the ideal is be able to connect to some mountpoint and do and audio ducking, but if i want a total cut, using another mountpoint

For example:  
/master : Usual beheavior, cutting the main stream and replace with the incoming stream.  
/master+ : Lower the volume of the main stream (-10 dB) and mix it with de incoming stream.

Thx.

PS:  
Some days ago, I suddenly delete and move some songs in the current playlist,  
the weird part is that two songs start playing in the stream at the same time, mixed together  
So I only can think is this is possible also with the input stream (some kind of mixing)