# Flip left/right channels for racing game mirrored mode?

**URL:** <https://qa.fmod.com/t/flip-left-right-channels-for-racing-game-mirrored-mode/15601>\
**Category:** FMOD Engine\
**Created:** [March 31, 2020, 8:12pm UTC](https://qa.fmod.com/t/flip-left-right-channels-for-racing-game-mirrored-mode/15601 "2020-03-31T20:12:50Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![vectorunit](https://avatars.discourse-cdn.com/v4/letter/v/439d5e/32.png) [@vectorunit](https://qa.fmod.com/u/vectorunit)\
**Post date:** [March 31, 2020, 8:12pm UTC](https://qa.fmod.com/t/flip-left-right-channels-for-racing-game-mirrored-mode/15601/1 "2020-03-31T20:12:50Z")

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The closest I found is the handedness of the coordinate system, but it looks like this can only be set during initialize, not updated on the fly. Has this been solved in the past?

Thanks

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**Author:** ![cameron-fmod](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/cameron-fmod/32/261_2.png) [@cameron-fmod](https://qa.fmod.com/u/cameron-fmod)\
**Post date:** [April 9, 2020, 4:11am UTC](https://qa.fmod.com/t/flip-left-right-channels-for-racing-game-mirrored-mode/15601/2 "2020-04-09T04:11:41Z")

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You can change the pan stereo width of an Event or a Bus: [https://fmod.com/resources/documentation-studio?version=2.1&page=mixing.html#the-panner](https://fmod.com/resources/documentation-studio?version=2.1&page=mixing.html#the-panner)

You can even automate this Event property to control it with a parameter, and in version 2.0 or newer you can also automate Bus properties.

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**Author:** ![vectorunit](https://avatars.discourse-cdn.com/v4/letter/v/439d5e/32.png) [@vectorunit](https://qa.fmod.com/u/vectorunit)\
**Post date:** [April 10, 2020, 10:50pm UTC](https://qa.fmod.com/t/flip-left-right-channels-for-racing-game-mirrored-mode/15601/3 "2020-04-10T22:50:34Z")

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Thanks Cameron, but I’m not sure this will work for us. Are you able to set the width to a negative value in order to flip the channels? Will this work in 5.1 and 7.1 surround sound? Can this be done on the fly programmatically?

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**Author:** ![cameron-fmod](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/cameron-fmod/32/261_2.png) [@cameron-fmod](https://qa.fmod.com/u/cameron-fmod)\
**Post date:** [April 14, 2020, 2:20am UTC](https://qa.fmod.com/t/flip-left-right-channels-for-racing-game-mirrored-mode/15601/4 "2020-04-14T02:20:43Z")

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You can set it to a negative value to flip the channels, to do this programmatically you can automate the value with a parameter and set the parameter value in game.

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**Author:** ![vectorunit](https://avatars.discourse-cdn.com/v4/letter/v/439d5e/32.png) [@vectorunit](https://qa.fmod.com/u/vectorunit)\
**Post date:** [April 20, 2020, 7:41pm UTC](https://qa.fmod.com/t/flip-left-right-channels-for-racing-game-mirrored-mode/15601/5 "2020-04-20T19:41:14Z")

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I ended up simply flipping the up-vector when calling setListenerAttributes() while in mirrored mode.