# How to get RMS level per speaker in FMOD API

**URL:** <https://qa.fmod.com/t/how-to-get-rms-level-per-speaker-in-fmod-api/14821>\
**Category:** FMOD Engine\
**Created:** [July 1, 2019, 8:12am UTC](https://qa.fmod.com/t/how-to-get-rms-level-per-speaker-in-fmod-api/14821 "2019-07-01T08:12:29Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![drjensen](https://avatars.discourse-cdn.com/v4/letter/d/b5a626/32.png) [@drjensen](https://qa.fmod.com/u/drjensen)\
**Post date:** [July 1, 2019, 8:12am UTC](https://qa.fmod.com/t/how-to-get-rms-level-per-speaker-in-fmod-api/14821/1 "2019-07-01T08:12:29Z")

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Hi

I would like to access the RMS level in FMOD API per each speaker (eg. front left, center, front right).  
How would I go about doing this? Right now I am able to access overall RMS by calling getMeteringInfo on the DSP head on the master bus. But I wanna access RMS for each speaker individually to display in my game’s debug view.

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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:** [July 8, 2019, 12:22am UTC](https://qa.fmod.com/t/how-to-get-rms-level-per-speaker-in-fmod-api/14821/2 "2019-07-08T00:22:08Z")

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The [FMOD\_DSP\_METERING\_INFO](https://fmod.com/resources/documentation-api?version=2.0&page=plugin-api-dsp.html#fmod_dsp_metering_info) returned from DSP::getMeteringInfo contains an array of peak and rms levels, containing values for each speaker. It also contains `numchannels` which you can use to iterate the arrays.