# FMOD Engine

**URL:** https://qa.fmod.com/c/fmodapi/6.md?no_subcategories=false&page=9

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**Page:** 10

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## [Use LFE channel as regular channel (8.0 instead of 7.1)](https://qa.fmod.com/t/use-lfe-channel-as-regular-channel-8-0-instead-of-7-1/21869)

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**Author:** [@Valtyas](https://qa.fmod.com/u/Valtyas)\
**Replies:** 2\
**Last updated:** [September 23, 2024, 1:30pm UTC](https://qa.fmod.com/t/use-lfe-channel-as-regular-channel-8-0-instead-of-7-1/21869 "2024-09-23T13:30:07Z")

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We are using the FMOD Engine 2.02.13 on a Raspberry PI combined with a Gigaport ex 8-Channel interface for a “soundscape-tabletop” where we want to trigger up to 8 individual Mono-Events on individual Channels to create …

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## [Crash on FMOD\_System\_Close with ASIO](https://qa.fmod.com/t/crash-on-fmod-system-close-with-asio/22036)

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**Author:** [@Controller1](https://qa.fmod.com/u/Controller1)\
**Replies:** 11\
**Last updated:** [September 22, 2024, 10:44pm UTC](https://qa.fmod.com/t/crash-on-fmod-system-close-with-asio/22036 "2024-09-22T22:44:19Z")

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Everything works fine in the project, except it crashes with FMOD\_OUTPUTTYPE\_ASIO when quitting. Switching to FMOD\_OUTPUTTYPE\_WASAPI, the issue is gone. I stripped almost all code to find the issue. Crashes about 50% wh…

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## [Getting empty events with studioSystem.loadBankFile](https://qa.fmod.com/t/getting-empty-events-with-studiosystem-loadbankfile/22065)

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**Author:** [@Battern](https://qa.fmod.com/u/Battern)\
**Replies:** 14\
**Last updated:** [September 20, 2024, 7:02pm UTC](https://qa.fmod.com/t/getting-empty-events-with-studiosystem-loadbankfile/22065 "2024-09-20T19:02:42Z")

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I have a problem with the banks being loaded being empty when trying to use them. I have tried two banks, the first master.bank with 8 events and a smaller testbank.bank with one event. Loading the first gives 8 empty b…

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## [Plugin Instrument Async](https://qa.fmod.com/t/plugin-instrument-async/22085)

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**Author:** [@Capraise](https://qa.fmod.com/u/Capraise)\
**Replies:** 4\
**Last updated:** [September 18, 2024, 6:50am UTC](https://qa.fmod.com/t/plugin-instrument-async/22085 "2024-09-18T06:50:18Z")

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Can plugin instruments be in an async state to keep the DSP alive until returning FMOD\_ERR\_DSP\_DONTPROCESS? I think the plugin is now instantly released when the playhead gets outside. For instance, for having a bell ri…

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## [Simulating 3D sound in godot using fmod via C#](https://qa.fmod.com/t/simulating-3d-sound-in-godot-using-fmod-via-c/22099)

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**Author:** [@Battern](https://qa.fmod.com/u/Battern)\
**Replies:** 2\
**Last updated:** [September 18, 2024, 1:28am UTC](https://qa.fmod.com/t/simulating-3d-sound-in-godot-using-fmod-via-c/22099 "2024-09-18T01:28:03Z")

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I am working on building a simple framework for using sounds generated by FMOD in Godot 4, utilizing the C# wrapper classes around fmod.dll and fmodstudio.dll. I have successfully initialized the Studio System, played s…

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## [Raw data FMOD\_OPENMEMORY](https://qa.fmod.com/t/raw-data-fmod-openmemory/22054)

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**Author:** [@dpadam450](https://qa.fmod.com/u/dpadam450)\
**Replies:** 4\
**Last updated:** [September 3, 2024, 10:41pm UTC](https://qa.fmod.com/t/raw-data-fmod-openmemory/22054 "2024-09-03T22:41:03Z")

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I have a raw buffer of floating point samples read in from a .txt file. If I import raw into Audacity, it plays back just fine. I want to push it into FMOD however and play it back. I have tried various things but eit…

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## [FMOD: OpenStateReady Changes to OpenStateSetPosition Without setPosition Call - How to Fix?](https://qa.fmod.com/t/fmod-openstateready-changes-to-openstatesetposition-without-setposition-call-how-to-fix/22046)

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**Author:** [@DaeHyun](https://qa.fmod.com/u/DaeHyun)\
**Replies:** 1\
**Last updated:** [September 3, 2024, 5:08am UTC](https://qa.fmod.com/t/fmod-openstateready-changes-to-openstatesetposition-without-setposition-call-how-to-fix/22046 "2024-09-03T05:08:55Z")

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I used the CREATE\_STREAM and NONBLOCKING flags to create a stream in FMOD, and I confirmed that the state was OpenStateReady. However, in the next frame, without calling setPosition or getPosition, the state changed to O…

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## [Issues with playing MIDI files with a custom .dls soundbank](https://qa.fmod.com/t/issues-with-playing-midi-files-with-a-custom-dls-soundbank/21944)

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**Author:** [@mmsound](https://qa.fmod.com/u/mmsound)\
**Replies:** 7\
**Last updated:** [August 28, 2024, 1:59am UTC](https://qa.fmod.com/t/issues-with-playing-midi-files-with-a-custom-dls-soundbank/21944 "2024-08-28T01:59:44Z")

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Hello, We’re trying to play some MIDI files using a custom .dls soundbank, and have faced numerous issues. For some background information, we’re testing and getting consistent results on both YoYo Games’ FMOD Studio Co…

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## [FMOD Integration with OpenHarmony OS](https://qa.fmod.com/t/fmod-integration-with-openharmony-os/21829)

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**Author:** [@liuzhilin](https://qa.fmod.com/u/liuzhilin)\
**Replies:** 5\
**Last updated:** [August 27, 2024, 4:15am UTC](https://qa.fmod.com/t/fmod-integration-with-openharmony-os/21829 "2024-08-27T04:15:45Z")

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we have been working on integrating FMOD with the OpenHarmony Operating System (OS). During our development process, we encountered issues with audio silence and latency when using the libfmod.so library. We were able to…

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## [Fmod with Ohos: crash with dspBufferSize(2048,4)](https://qa.fmod.com/t/fmod-with-ohos-crash-with-dspbuffersize-2048-4/22037)

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**Author:** [@liuzhilin](https://qa.fmod.com/u/liuzhilin)\
**Replies:** 1\
**Last updated:** [August 27, 2024, 12:05am UTC](https://qa.fmod.com/t/fmod-with-ohos-crash-with-dspbuffersize-2048-4/22037 "2024-08-27T00:05:50Z")

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Whenever sets the bufferNum to be 4. It get stuck in the for loop of “filling all buffers with silence to prepare for playback”. However, some of my other co-workers who are using 2.02 version. He works all well with 4 …

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## [Getting PulseAudio dependency to work in Ubuntu Docker image](https://qa.fmod.com/t/getting-pulseaudio-dependency-to-work-in-ubuntu-docker-image/21897)

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**Author:** [@joeanderson](https://qa.fmod.com/u/joeanderson)\
**Replies:** 10\
**Last updated:** [August 22, 2024, 7:31am UTC](https://qa.fmod.com/t/getting-pulseaudio-dependency-to-work-in-ubuntu-docker-image/21897 "2024-08-22T07:31:05Z")

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I’m trying to get FMOD to work in my Unity game’s CI playmode tests. These tests run in GitHub Actions using Ubuntu 22.04 Docker images maintained by GameCI. Using the Docker image as is, I get: \[FMOD\] FMOD\_OS\_Library\_…

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## [Fmod core api encounters crash problem on iOS](https://qa.fmod.com/t/fmod-core-api-encounters-crash-problem-on-ios/22012)

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**Author:** [@lxy1114](https://qa.fmod.com/u/lxy1114)\
**Replies:** 3\
**Last updated:** [August 22, 2024, 3:19am UTC](https://qa.fmod.com/t/fmod-core-api-encounters-crash-problem-on-ios/22012 "2024-08-22T03:19:31Z")

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I would like to ask if Sound will be released automatically after playing. I set up a callback after playing to play another sound under certain circumstances. In the callback function, I released the previous Sound, but…

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## [3D orientation vector confusion](https://qa.fmod.com/t/3d-orientation-vector-confusion/22025)

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**Author:** [@mca2](https://qa.fmod.com/u/mca2)\
**Replies:** 3\
**Last updated:** [August 22, 2024, 2:31am UTC](https://qa.fmod.com/t/3d-orientation-vector-confusion/22025 "2024-08-22T02:31:38Z")

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I’m trying to grasp the documentation on the forward- and up-vector in Studio::System::setListenerAttributes(), but the documentation confuses me. First of all I’ve created the system with FMOD\_INIT\_3D\_RIGHTHANDED to al…

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## [Adjust event playback speed with custom DSP](https://qa.fmod.com/t/adjust-event-playback-speed-with-custom-dsp/22022)

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**Author:** [@theome](https://qa.fmod.com/u/theome)\
**Replies:** 2\
**Last updated:** [August 21, 2024, 6:58am UTC](https://qa.fmod.com/t/adjust-event-playback-speed-with-custom-dsp/22022 "2024-08-21T06:58:51Z")

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In my game, I want to play an audio stream that I receive over the network in an FMOD event. I’m using a custom DSP to provide the PCM data. The setup looks like this (C#, but not Unity): eventInstance.getChannelGroup(o…

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## [Music not in synch](https://qa.fmod.com/t/music-not-in-synch/22001)

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**Author:** [@maximegau](https://qa.fmod.com/u/maximegau)\
**Replies:** 6\
**Last updated:** [August 21, 2024, 12:35am UTC](https://qa.fmod.com/t/music-not-in-synch/22001 "2024-08-21T00:35:14Z")

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Good evening, Little problem here it seems that music gets out of synch regularly when playing the game. I mainly have a music “body” as in main music, which then gets layered depending on a parameter. My problem is tha…

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## [Non-looping virtual channels stay virtual forever and don't ever stop or get paused](https://qa.fmod.com/t/non-looping-virtual-channels-stay-virtual-forever-and-dont-ever-stop-or-get-paused/21985)

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**Author:** [@svbernem](https://qa.fmod.com/u/svbernem)\
**Replies:** 3\
**Last updated:** [August 20, 2024, 6:36am UTC](https://qa.fmod.com/t/non-looping-virtual-channels-stay-virtual-forever-and-dont-ever-stop-or-get-paused/21985 "2024-08-20T06:36:29Z")

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I’m having problems managing the lifetime of non-looping, virtual fmod channels right now. This is what I currently do in my engine: create a channel with FMOD\_System\_PlaySound create custom bookkeeping for that sound p…

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## [Setting Channel Callback (SyncPoint) after ProgrammerSound creation](https://qa.fmod.com/t/setting-channel-callback-syncpoint-after-programmersound-creation/21992)

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**Author:** [@nordic](https://qa.fmod.com/u/nordic)\
**Replies:** 3\
**Last updated:** [August 15, 2024, 12:09am UTC](https://qa.fmod.com/t/setting-channel-callback-syncpoint-after-programmersound-creation/21992 "2024-08-15T00:09:45Z")

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Hi there, I’m using FMOD Studio on UE4 combined with the Core API in order to implement SyncPoint functionality for Programmer Sounds. We are extending UFMODAudioComponent with our own class I’ll refer to as UMyFMODAud…

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## [No Sound from playing events in DLC Banks](https://qa.fmod.com/t/no-sound-from-playing-events-in-dlc-banks/19792)

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**Author:** [@willigi](https://qa.fmod.com/u/willigi)\
**Replies:** 7\
**Last updated:** [August 14, 2024, 4:00am UTC](https://qa.fmod.com/t/no-sound-from-playing-events-in-dlc-banks/19792 "2024-08-14T04:00:07Z")

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I have a content creator trying to add new audio banks in a DLC pack that is not loaded at start up (only if a user selects it), and while the sounds play in FMOD Studio, they do not play in game. I have tried to replica…

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## [Fmod pom.xml](https://qa.fmod.com/t/fmod-pom-xml/21973)

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**Author:** [@dnbstartrek](https://qa.fmod.com/u/dnbstartrek)\
**Replies:** 5\
**Last updated:** [August 13, 2024, 5:33am UTC](https://qa.fmod.com/t/fmod-pom-xml/21973 "2024-08-13T05:33:17Z")

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Hellow there, please I need a pom oficial xml dependences

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## [Convolution reverb on the fly](https://qa.fmod.com/t/convolution-reverb-on-the-fly/21975)

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**Author:** [@archonic](https://qa.fmod.com/u/archonic)\
**Replies:** 6\
**Last updated:** [August 12, 2024, 12:35am UTC](https://qa.fmod.com/t/convolution-reverb-on-the-fly/21975 "2024-08-12T00:35:49Z")

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Hi all, I really like the way that convolution reverb sounds, and I especially like how it preserves the direction of a sound after the sound passes through. I am wondering how realistic it would be to add dynamic convo…

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## [MP3 loops with an audible gap, the equivalent WAV doesn't](https://qa.fmod.com/t/mp3-loops-with-an-audible-gap-the-equivalent-wav-doesnt/21931)

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**Author:** [@svbernem](https://qa.fmod.com/u/svbernem)\
**Replies:** 2\
**Last updated:** [July 30, 2024, 6:18am UTC](https://qa.fmod.com/t/mp3-loops-with-an-audible-gap-the-equivalent-wav-doesnt/21931 "2024-07-30T06:18:38Z")

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I’m integrating fmod into my engine right now and am trying to loop an MP3 sound. I have a WAV and an MP3 version of this sound. When playing the MP3 version of the file as a looping sound (opened with FMOD\_2D | FMOD\_CR…

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## [\[Bug\] FMOD Engine download uses backslashes in archives, which do not expand correctly on Linux](https://qa.fmod.com/t/bug-fmod-engine-download-uses-backslashes-in-archives-which-do-not-expand-correctly-on-linux/21977)

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**Author:** [@whaley55](https://qa.fmod.com/u/whaley55)\
**Replies:** 1\
**Last updated:** [August 8, 2024, 1:27am UTC](https://qa.fmod.com/t/bug-fmod-engine-download-uses-backslashes-in-archives-which-do-not-expand-correctly-on-linux/21977 "2024-08-08T01:27:29Z")

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Downloading the html5 FMOD Engine release I noticed that all paths use backslashes, which is against the Zip File Specification and causes issues when unzipping on Linux. After unzipping, all files appear in the top leve…

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## [Getting audio device name using getDriverInfo](https://qa.fmod.com/t/getting-audio-device-name-using-getdriverinfo/21950)

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**Author:** [@ojabim](https://qa.fmod.com/u/ojabim)\
**Replies:** 2\
**Last updated:** [August 1, 2024, 7:15am UTC](https://qa.fmod.com/t/getting-audio-device-name-using-getdriverinfo/21950 "2024-08-01T07:15:50Z")

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Hi there, I am trying to add a setting in my game where players can change the active audio device used in-game. The game is written in C# using Unity and the FMOD Unity integration. My code uses the RuntimeManager.Co…

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## [Sound cannot be played on the Openharmony platform when come back to the foreground](https://qa.fmod.com/t/sound-cannot-be-played-on-the-openharmony-platform-when-come-back-to-the-foreground/21660)

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**Author:** [@jonckni](https://qa.fmod.com/u/jonckni)\
**Replies:** 3\
**Last updated:** [July 30, 2024, 4:30am UTC](https://qa.fmod.com/t/sound-cannot-be-played-on-the-openharmony-platform-when-come-back-to-the-foreground/21660 "2024-07-30T04:30:03Z")

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Here are the two issues encountered on the HarmonyOS platform using FMOD version 2.03 with Unity: When switching to the background, the sound continues to play and only pauses after a period of time. When switching bac…

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## [Upstream updated C# bindings for AOT compilation](https://qa.fmod.com/t/upstream-updated-c-bindings-for-aot-compilation/21636)

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**Author:** [@joskuijpers-jarvix](https://qa.fmod.com/u/joskuijpers-jarvix)\
**Replies:** 4\
**Last updated:** [July 24, 2024, 7:04am UTC](https://qa.fmod.com/t/upstream-updated-c-bindings-for-aot-compilation/21636 "2024-07-24T07:04:28Z")

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Hi, I’ve made a change locally to the fmod.cs bindings in order to solve AOT warnings and potential issues. I’d like to share them so they can be upstreamed, or can be used to fix upstream. The core part: replace th…

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## [Fatal program exit requested in fmodstudio.dll (2.02.06)](https://qa.fmod.com/t/fatal-program-exit-requested-in-fmodstudio-dll-2-02-06/21844)

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**Author:** [@h3r2tic](https://qa.fmod.com/u/h3r2tic)\
**Replies:** 6\
**Last updated:** [July 22, 2024, 5:28pm UTC](https://qa.fmod.com/t/fatal-program-exit-requested-in-fmodstudio-dll-2-02-06/21844 "2024-07-22T17:28:02Z")

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Hey! We just got a report of a crash in fmodstudio.dll (2.02.06) that bypassed our in-game crash reporter. It appears to be a \_\_fastfail(FAST\_FAIL\_FATAL\_APP\_EXIT): 00007FFB1495CFD8 mov ecx,7 00007FFB1495CFDD …

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## [Please tell me how to call the child event](https://qa.fmod.com/t/please-tell-me-how-to-call-the-child-event/21890)

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**Author:** [@berserk77](https://qa.fmod.com/u/berserk77)\
**Replies:** 2\
**Last updated:** [July 19, 2024, 4:31am UTC](https://qa.fmod.com/t/please-tell-me-how-to-call-the-child-event/21890 "2024-07-19T04:31:38Z")

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Hello~ You can check the child’s path in the studio, but you cannot check the child’s path in-game. The reason is that although you can call one of the children randomly, you also want to call it by specifying it. No …

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## [Channel setMode() not clearing old vaue](https://qa.fmod.com/t/channel-setmode-not-clearing-old-vaue/21864)

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**Author:** [@flakeybisquik](https://qa.fmod.com/u/flakeybisquik)\
**Replies:** 1\
**Last updated:** [July 18, 2024, 4:31am UTC](https://qa.fmod.com/t/channel-setmode-not-clearing-old-vaue/21864 "2024-07-18T04:31:52Z")

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Hello, I am switching a channel from 3D to 2D by first calling \_channel.setMode(MODE.\_3D | MODE.\_3D\_INVERSETAPEREDROLLOFF), and then \_channel.setMode(MODE.\_2D). When I get and print out the channel’s mode,…

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## [In the FMOD Engine, I set up Resonanceaudio's RoomProperties without encountering any errors, but also didn't observe any changes](https://qa.fmod.com/t/in-the-fmod-engine-i-set-up-resonanceaudios-roomproperties-without-encountering-any-errors-but-also-didnt-observe-any-changes/21882)

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**Author:** [@ZheYinX](https://qa.fmod.com/u/ZheYinX)\
**Replies:** 2\
**Last updated:** [July 15, 2024, 6:21am UTC](https://qa.fmod.com/t/in-the-fmod-engine-i-set-up-resonanceaudios-roomproperties-without-encountering-any-errors-but-also-didnt-observe-any-changes/21882 "2024-07-15T06:21:44Z")

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As the title suggests, I’ve encountered a significant issue. I’ve scoured the forums for relevant information and found a crucial post: The post was using C++, while I’m utilizing C#. However, the objective was the sam…

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## [Use of FMOD on MSYS2](https://qa.fmod.com/t/use-of-fmod-on-msys2/21857)

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**Author:** [@gahjouyooj](https://qa.fmod.com/u/gahjouyooj)\
**Replies:** 1\
**Last updated:** [July 15, 2024, 4:08am UTC](https://qa.fmod.com/t/use-of-fmod-on-msys2/21857 "2024-07-15T04:08:25Z")

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I need to use FMOD on MSYS2, but there does not appear to be a FMOD.a. I’ve attempted using tools provided by MSYS2 to convert the .lib and .dll files into .a and .so files, but that did not work. How do you use FMOD on…

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