# No Sound even though all API calls are a success

**URL:** <https://qa.fmod.com/t/no-sound-even-though-all-api-calls-are-a-success/22567>\
**Category:** FMOD Studio\
**Created:** [February 3, 2025, 9:48pm UTC](https://qa.fmod.com/t/no-sound-even-though-all-api-calls-are-a-success/22567 "2025-02-03T21:48:42Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![mattrox09](https://avatars.discourse-cdn.com/v4/letter/m/a88e4f/32.png) [@mattrox09](https://qa.fmod.com/u/mattrox09)\
**Post date:** [February 3, 2025, 9:48pm UTC](https://qa.fmod.com/t/no-sound-even-though-all-api-calls-are-a-success/22567/1 "2025-02-03T21:48:42Z")

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Hello, I’m new to Fmod and I’m trying to get it working in my C# project (based on Raylib). I have a SoundManager singleton that loads my banks (no problem), updates the system every frame (no problem) and gets the event and starts it (again, no problems). But I don’t hear anything whatsoever, no artifacts, no nothing. Any help would be greatly appreciated.

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<div class="post-metadata">

**Author:** ![Leah\_FMOD](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/leah_fmod/32/3685_2.png) [@Leah\_FMOD](https://qa.fmod.com/u/Leah_FMOD)\
**Post date:** [February 4, 2025, 4:52am UTC](https://qa.fmod.com/t/no-sound-even-though-all-api-calls-are-a-success/22567/2 "2025-02-04T04:52:09Z")

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Hi,

What version of FMOD are you using (i.e. 2.xx.yy)? Could I get you to make sure you’re using the logging version of the FMOD libs (with the “L” suffix), then use [Debug\_Initialize](https://www.fmod.com/docs/2.02/api/core-api-common.html#debug_initialize) to set the `flags` argument to `FMOD_DEBUG_LEVEL_LOG`, and post a runtime log where the issue occurs?

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<div class="post-metadata">

**Author:** ![mattrox09](https://avatars.discourse-cdn.com/v4/letter/m/a88e4f/32.png) [@mattrox09](https://qa.fmod.com/u/mattrox09)\
**Post date:** [February 4, 2025, 10:43am UTC](https://qa.fmod.com/t/no-sound-even-though-all-api-calls-are-a-success/22567/3 "2025-02-04T10:43:15Z")

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Hello. I am using 2.02.26. However, I wasn’t able to get the L libraries to work. Is it just those that I need, or do I need the regular fmod DLLs in my build folder as well?

EDIT: scratch that, I changed the DLL strings in the wrapper scripts. But I see no log output in the console and no log files created

EDIT 2: scratch that again. I got the file output working, and there is in fact an error:

```auto
[LOG] Manager::readBank : fileversion = 142, compatVersion = 140 (oldest = 44, newest = 142)
[ERR] RuntimeBankModel::openFile : Failed to open file 'assets/sounds/banks/Desktop/sfx.bank'
[ERR] ResourceLoader::asyncLoadResourceThread : Failed to load waveform {f3bf2ca4-8846-4a79-b696-c20ede870fbb} (error 18)
[WRN] EventModelAPIData::getSampleLoadingState : Event '{6246b2d5-622e-4d6f-8ba8-3aab1aa5680f}' waveform in error state
[WRN] SoundSourceInstrumentInstance::startChannelIfReady : Resource type 2 for instrument {718e3759-0b67-4f4d-a2f6-be627923ccaa} has returned 76 and will now stop.
[WRN] EventModelAPIData::getSampleLoadingState : Event '{6246b2d5-622e-4d6f-8ba8-3aab1aa5680f}' waveform in error state
[WRN] SoundSourceInstrumentInstance::startChannelIfReady : Resource type 2 for instrument {718e3759-0b67-4f4d-a2f6-be627923ccaa} has returned 76 and will now stop.
[WRN] EventModelAPIData::getSampleLoadingState : Event '{6246b2d5-622e-4d6f-8ba8-3aab1aa5680f}' waveform in error state
[WRN] SoundSourceInstrumentInstance::startChannelIfReady : Resource type 2 for instrument {718e3759-0b67-4f4d-a2f6-be627923ccaa} has returned 76 and will now stop.
[ERR] assert : assertion: 'gSystemInitCount == 0' failed

```

I’m certain the path is correct, otherwise there would have been an exception no?

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<div class="post-metadata">

**Author:** ![Leah\_FMOD](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/leah_fmod/32/3685_2.png) [@Leah\_FMOD](https://qa.fmod.com/u/Leah_FMOD)\
**Post date:** [February 7, 2025, 4:57am UTC](https://qa.fmod.com/t/no-sound-even-though-all-api-calls-are-a-success/22567/4 "2025-02-07T04:57:10Z")

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Thanks for the log!

There’s a couple of potential causes based on the log info. Assuming that path is correct and the bank is in the correct place, it’s possible that:

- The banks are encrypted, and an [encryption key](https://www.fmod.com/docs/2.02/api/studio-api-system.html#fmod_studio_advancedsettings_encryptionkey) hasn’t been provided
- The bank metadata and assets have been [separated](https://www.fmod.com/docs/2.02/api/studio-guide.html#bank-separation), and the non-streaming/streaming asset banks (\*.assets.bank/\*.streams.bank) haven’t been loaded alongside the metadata bank (\*.bank).
- The banks are corrupted in some way, and may require a rebuild in FMOD Studio

I’d recommend verifying that none of the above are occurring.