# How many virtual/real channel can I use for PC build with desired PC specs?

**URL:** <https://qa.fmod.com/t/how-many-virtual-real-channel-can-i-use-for-pc-build-with-desired-pc-specs/14412>\
**Category:** Unity\
**Created:** [March 4, 2019, 11:13pm UTC](https://qa.fmod.com/t/how-many-virtual-real-channel-can-i-use-for-pc-build-with-desired-pc-specs/14412 "2019-03-04T23:13:36Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![botaurus](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/botaurus/32/127_2.png) [@botaurus](https://qa.fmod.com/u/botaurus)\
**Post date:** [March 4, 2019, 11:13pm UTC](https://qa.fmod.com/t/how-many-virtual-real-channel-can-i-use-for-pc-build-with-desired-pc-specs/14412/1 "2019-03-04T23:13:36Z")

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I was having sound issues, all audio would cut out half way through the game. So I increased the the virtual/ real channel counts in the settings (virtual: 1024 real:64). This fixed the issue.  
I am getting our demo build ready, it will be played on PC’s that have our desired specs. Is there any risk to cranking the channels up to avoid potential sound issues. I have not been particularly efficient with fmod method calls.  
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:** [March 12, 2019, 12:48am UTC](https://qa.fmod.com/t/how-many-virtual-real-channel-can-i-use-for-pc-build-with-desired-pc-specs/14412/2 "2019-03-12T00:48:50Z")

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Virtual channels will use cpu, as the playback position still needs to be calculated, but hitting the voice limit will produces unexpected results so it is always advised to have a very high limit.

> If the virtual voice limit is hit then Channels will be stolen and start returning FMOD\_ERR\_INVALID\_HANDLE. Channels which have had their handle stolen in this way are permanently stopped and will never return.

[https://fmod.com/resources/documentation-api?page=content/generated/overview/virtualvoices.html#/](https://fmod.com/resources/documentation-api?page=content/generated/overview/virtualvoices.html#/)