# How to add background sound low level api

**URL:** https://qa.fmod.com/t/how-to-add-background-sound-low-level-api/18049
**Category:** FMOD Engine
**Created:** [December 5, 2021, 3:31pm UTC](https://qa.fmod.com/t/how-to-add-background-sound-low-level-api/18049 "2021-12-05T15:31:25Z")
**Posts on this page:** 2
**Page:** 1

<div class="post-metadata">

### Author: ![nguyenvanthanh2912](https://avatars.discourse-cdn.com/v4/letter/n/bbce88/32.png) [@nguyenvanthanh2912](https://qa.fmod.com/u/nguyenvanthanh2912)
#### Post date: [December 5, 2021, 3:31pm UTC](https://qa.fmod.com/t/how-to-add-background-sound-low-level-api/18049/1 "2021-12-05T15:31:25Z")

</div>

I want to play main voice and a background sound like sea wave … Please tell me how to do it in low level api C++. Thanks

---

<div class="post-metadata">

### Author: ![richard\_simms](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/richard_simms/32/261_2.png) [@richard\_simms](https://qa.fmod.com/u/richard_simms)
#### Post date: [December 6, 2021, 11:55pm UTC](https://qa.fmod.com/t/how-to-add-background-sound-low-level-api/18049/2 "2021-12-06T23:55:34Z")

</div>

Could you let me know what you mean by “main voice”? You can see an example of an infinitely looping sound in the `play_sound.cpp` example in the FMOD API installation folder, but you will need to supply your own sea wave sound file.