# Resonance audio source VS FMOD spatializer **URL:** https://qa.fmod.com/t/resonance-audio-source-vs-fmod-spatializer/21280 **Category:** FMOD Studio **Created:** [February 24, 2024, 2:46am UTC](https://qa.fmod.com/t/resonance-audio-source-vs-fmod-spatializer/21280 "2024-02-24T02:46:28Z") **Posts on this page:** 3 **Page:** 1
### Author: ![jeremiegb](https://avatars.discourse-cdn.com/v4/letter/j/c6cbf5/32.png) [@jeremiegb](https://qa.fmod.com/u/jeremiegb) #### Post date: [February 24, 2024, 2:46am UTC](https://qa.fmod.com/t/resonance-audio-source-vs-fmod-spatializer/21280/1 "2024-02-24T02:46:28Z")
Hi, When I put a stereo sound in 3D space using the resonance audio source, it looks like the sound becomes mono. But when using the FMOD spatializer, the sound remain stereo in the 3D space (see pictures below for the 3D preview comparison). I was wondering, is this just the way resonance audio source works or is there a way to keep the stereo property of sounds? Thanks ![ResonanceVsFmod](https://canada1.discourse-cdn.com/flex036/uploads/fmod/original/2X/5/5e23d74112e979ab175f2ba9978241388ab41264.png) ---
### Author: ![magomusica](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/magomusica/32/420_2.png) [@magomusica](https://qa.fmod.com/u/magomusica) #### Post date: [February 25, 2024, 1:03am UTC](https://qa.fmod.com/t/resonance-audio-source-vs-fmod-spatializer/21280/2 "2024-02-25T01:03:26Z")
Yup, resonance and most other binaural spatializers out there will reduce to mono before processing. That’s why it’s important to use reverbs when doing anything with spatialization. Note that FMOD’s spatializer is not a binaural effect. ---
### Author: ![jeremiegb](https://avatars.discourse-cdn.com/v4/letter/j/c6cbf5/32.png) [@jeremiegb](https://qa.fmod.com/u/jeremiegb) #### Post date: [March 4, 2024, 3:12pm UTC](https://qa.fmod.com/t/resonance-audio-source-vs-fmod-spatializer/21280/3 "2024-03-04T15:12:41Z")
I see thank you!