# Sound Cannot be Heard
**URL:** https://qa.fmod.com/t/sound-cannot-be-heard/21544
**Category:** FMOD Engine
**Tags:** openharmony
**Created:** [April 26, 2024, 3:17am UTC](https://qa.fmod.com/t/sound-cannot-be-heard/21544 "2024-04-26T03:17:52Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@luoxixuan](https://qa.fmod.com/u/luoxixuan)
#### Post date: [April 26, 2024, 3:17am UTC](https://qa.fmod.com/t/sound-cannot-be-heard/21544/1 "2024-04-26T03:17:52Z")
load bank and bank assets, load event, play event, i havent get any error or warning msg, but the sound cannot be heard.
my code is like this:
> FMOD::Studio::EventDescription\* eventDescription = \_loadEventDesc(eventName);
> FMOD::Studio::EventInstance \* eventInstance;
> if(eventDescription){
> Preformatted textFMOD\_RESULT result = eventDescription-\>createInstance(eventInstance);
> eventInstance-\>start();
> }
---
### Author:  [@luoxixuan](https://qa.fmod.com/u/luoxixuan)
#### Post date: [April 26, 2024, 7:34am UTC](https://qa.fmod.com/t/sound-cannot-be-heard/21544/2 "2024-04-26T07:34:10Z")
04-26 14:54:25.672 5050-5098 A0FF0D/fmod com. I System::create : Header version = 2.02.21. Current version = 2.02.21.
04-26 14:54:25.674 5050-5098 A0FF0D/fmod com. I SystemI::setOutputInternal : Setting output to ‘FMOD OpenHarmony Audio Output’
04-26 14:54:25.674 5050-5098 A0FF0D/fmod com. I Manager::init : maxchannels = 1024 studioflags = 00000000 flags 00000000 extradriverdata 0.
04-26 14:54:25.674 5050-5098 A0FF0D/fmod com. I SystemI::init : Initialize version=20221 (141420), maxchannels=1024, flags=0x00020000
04-26 14:54:25.706 5050-5098 A0FF0D/fmod com. I OHAudio\_Init : Output buffer size: 1114 samples, DSP buffer: 1024 \* 4.
04-26 14:54:25.707 5050-5098 A0FF0D/fmod com. I DownMix::init : dspbuffersize: 1024 rate: 48000. output speaker mode: 3, input speaker mode 6
04-26 14:54:25.707 5050-5098 A0FF0D/fmod com. I DownMix::init : done.
04-26 14:54:25.711 5050-5098 A0FF0D/fmod com. I Thread::initThread : Init FMOD stream thread. Affinity: 0x4000000000000003, Priority: 0xFFFF7FFB, Stack Size: 98304, Semaphore: No, Sleep Time: 10, Looping: Yes.
04-26 14:54:25.723 5050-5307 A0FF0D/fmod com. W OutputRingBuffer::read : Insufficient buffer size detected, requested 106992 bytes, buffer size is 98304 bytes.
---
### Author:  [@luoxixuan](https://qa.fmod.com/u/luoxixuan)
#### Post date: [April 26, 2024, 8:47am UTC](https://qa.fmod.com/t/sound-cannot-be-heard/21544/3 "2024-04-26T08:47:30Z")
i tried this, and it works!
> m\_lowLevelSystem-\>setDSPBufferSize(2048, 4);
---
### Author:  [@Connor\_FMOD](https://qa.fmod.com/u/Connor_FMOD)
#### Post date: [April 29, 2024, 2:17am UTC](https://qa.fmod.com/t/sound-cannot-be-heard/21544/4 "2024-04-29T02:17:26Z")
Hi,
Thank you for sharing the solution!