# Using FMOD with voice chat utilizing OnAudioFilterRead()

**URL:** <https://qa.fmod.com/t/using-fmod-with-voice-chat-utilizing-onaudiofilterread/17763>\
**Category:** Unity\
**Created:** [October 8, 2021, 5:02am UTC](https://qa.fmod.com/t/using-fmod-with-voice-chat-utilizing-onaudiofilterread/17763 "2021-10-08T05:02:32Z")\
**Posts on this page:** 2\
**Page:** 2

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**Author:** ![jeff\_fmod](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/jeff_fmod/32/1766_2.png) [@jeff\_fmod](https://qa.fmod.com/u/jeff_fmod)\
**Post date:** [November 25, 2021, 5:03am UTC](https://qa.fmod.com/t/using-fmod-with-voice-chat-utilizing-onaudiofilterread/17763/23 "2021-11-25T05:03:37Z")

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I’m pretty sure it was just a matter of replacing the FMOD listener with a Unity listener, and playing the various music tracks with audio sources instead of FMOD Studio Event Emitters.

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**Author:** ![jessekirbs](https://avatars.discourse-cdn.com/v4/letter/j/6de8d8/32.png) [@jessekirbs](https://qa.fmod.com/u/jessekirbs)\
**Post date:** [December 12, 2021, 9:27pm UTC](https://qa.fmod.com/t/using-fmod-with-voice-chat-utilizing-onaudiofilterread/17763/24 "2021-12-12T21:27:05Z")

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Confirmed this on my end as well. Looks like this a Unity bug: [Unity Issue Tracker - Spatial Blend parameter of an Audio Source has no effect when using OnAudioFilterRead to generate Audio](https://issuetracker.unity3d.com/issues/spatial-blend-parameter-of-an-audio-source-has-no-effect-when-using-onaudiofilterread-to-generate-audio)

Thanks for your help, @jeff_fmod.

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