Default Appli audio mixer during call

Good day everyone, I would like to know if anyone of you knows a similar application settings we can do on windows ie an audio mixer so you can hear and be heard an mp3 or other audio to our correspondent during a appeal.
Basically the person with whom we are online may hear the audio you listen?

Envoyé de mon GT-I9505 en utilisant Tapatalk
If my review is helpful, please thanks me