### Answer Retell AI currently supports several pre-made ambient sounds including coffee-shop, convention-hall, summer-outdoor, mountain-outdoor, static-noise, and call-center [(1) ]() [(2) ]() . For custom background sounds like a theater environment, Retell AI does not currently offer a direct way for users to upload their own audio files. However, according to a Discord discussion, if you have good quality audio for a custom background sound, the Retell team indicated they can add it to the public options [(3) ]() . To request a custom background sound: 1. Prepare high-quality audio for your desired environment (like a theater) 2. Reach out to the Retell team to discuss adding it as a public option The ambient sound setting can be configured in your agent's settings, and you can control the volume using the

ambient_sound_volume

parameter (ranging from 0-2) [(1) ]() [(2) ]() .

​ To learn more, see the sources I considered: [[1] Get Agent Versions](https://docs.retellai.com/api-references/get-agent-versions) [[2] Step 2: Configure the basic settings](https://docs.retellai.com/build/single-multi-prompt/configure-basic-settings) [[3] Custom background sound](https://discord.com/channels/1186424376300679209/1308463153117528164) ​

Feel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.