# Audio

**URL:** https://forums.unrealengine.com/c/development-discussion/audio/42.md?page=87

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**Page:** 88

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## [About the master output audio buffer](https://forums.unrealengine.com/t/about-the-master-output-audio-buffer/298812)

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**Author:** [@anonymous\_user\_9b607f491](https://forums.unrealengine.com/u/anonymous_user_9b607f491)\
**Replies:** 2\
**Last updated:** [September 11, 2019, 9:55pm UTC](https://forums.unrealengine.com/t/about-the-master-output-audio-buffer/298812 "2019-09-11T21:55:22Z")

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I am thinking to create an audio filter applying to the master output, and am curious if there is a way to get access to the audio buffer on the master output (should also allow me to write back the processed samples bac…

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## [Record audio in UE4 editor to wav file](https://forums.unrealengine.com/t/record-audio-in-ue4-editor-to-wav-file/455183)

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**Author:** [@anonymous\_user\_e577384b](https://forums.unrealengine.com/u/anonymous_user_e577384b)\
**Replies:** 0\
**Last updated:** [September 11, 2019, 11:13am UTC](https://forums.unrealengine.com/t/record-audio-in-ue4-editor-to-wav-file/455183 "2019-09-11T11:13:14Z")

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Hi all, Does UE4 or UE4 plugin have the feature that can record audio file when pressed play button? Does anyone knows how to implement this feature by c++? I hope it can record audio when pressed play button in ue4 e…

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## [i want to play the sound of video while game is paused](https://forums.unrealengine.com/t/i-want-to-play-the-sound-of-video-while-game-is-paused/454426)

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**Author:** [@Anonymous\_49bd636e49eed36439e8fc69f3111ca4](https://forums.unrealengine.com/u/Anonymous_49bd636e49eed36439e8fc69f3111ca4)\
**Replies:** 2\
**Last updated:** [September 11, 2019, 10:09am UTC](https://forums.unrealengine.com/t/i-want-to-play-the-sound-of-video-while-game-is-paused/454426 "2019-09-11T10:09:08Z")

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i played video using media player. and i attached my media player to sound class. it seems attached well, because i modified the ‘Volume’ parameter and it works. but i checked ‘Is UISound’ parameter, it didn’t work. …

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## [Working with different audio engine](https://forums.unrealengine.com/t/working-with-different-audio-engine/455116)

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**Author:** [@Xptohz3\_turbo](https://forums.unrealengine.com/u/Xptohz3_turbo)\
**Replies:** 2\
**Last updated:** [September 10, 2019, 6:06pm UTC](https://forums.unrealengine.com/t/working-with-different-audio-engine/455116 "2019-09-10T18:06:06Z")

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Hi, I’ve been working on a C++ audio engine myself. Now, I would like to know if it is possible to bypass the internal audio engine and use my third party audio engine. Basically, I would like to know how can I send t…

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## [how to monitorinf Surround files ue4](https://forums.unrealengine.com/t/how-to-monitorinf-surround-files-ue4/130934)

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**Author:** [@anonymous\_user\_9ff8e5af](https://forums.unrealengine.com/u/anonymous_user_9ff8e5af)\
**Replies:** 0\
**Last updated:** [September 10, 2019, 5:47pm UTC](https://forums.unrealengine.com/t/how-to-monitorinf-surround-files-ue4/130934 "2019-09-10T17:47:28Z")

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I am a sound designer. I am very inexperienced in ue4, and have been reading that labeling the audio files as: \_surround\_fl, fc,fr etc Ue4 recognize them as surround sound. So far all right, now someone would know I say…

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## [Changing Tempo / BPMs of a track with the Time Synth](https://forums.unrealengine.com/t/changing-tempo-bpms-of-a-track-with-the-time-synth/129873)

<div class="topic-metadata">

**Author:** [@CoquiGames](https://forums.unrealengine.com/u/CoquiGames)\
**Replies:** 1\
**Last updated:** [September 10, 2019, 9:21am UTC](https://forums.unrealengine.com/t/changing-tempo-bpms-of-a-track-with-the-time-synth/129873 "2019-09-10T09:21:42Z")

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Hi everyone, I’ve been learning more about the Time Synth after watching the Livestream with Dan Reynolds and I’m trying to change the track’s BPM via Blueprints at runtime. I see the node “Set BPM” but using this via B…

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## [Is there a way to Pause Time Synth?](https://forums.unrealengine.com/t/is-there-a-way-to-pause-time-synth/448913)

<div class="topic-metadata">

**Author:** [@Jaytheway](https://forums.unrealengine.com/u/Jaytheway)\
**Replies:** 2\
**Last updated:** [September 10, 2019, 9:12am UTC](https://forums.unrealengine.com/t/is-there-a-way-to-pause-time-synth/448913 "2019-09-10T09:12:49Z")

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Couldn’t find any way to pause Clip playback with Time Synth. There’s a “Stop Clip with Fade Override” function, but nothing for Pausing Clip.

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## [Working with different audio engine](https://forums.unrealengine.com/t/working-with-different-audio-engine/130922)

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**Author:** [@Xptohz3\_turbo](https://forums.unrealengine.com/u/Xptohz3_turbo)\
**Replies:** 0\
**Last updated:** [September 10, 2019, 9:00am UTC](https://forums.unrealengine.com/t/working-with-different-audio-engine/130922 "2019-09-10T09:00:02Z")

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Hi, I’ve been working on a C++ audio engine myself. Now, I would like to know if it is possible to bypass the internal audio engine and use my third party audio engine. Basically, I would like to know how can I send t…

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## [Using the Time Synth Component in Editor and Game.](https://forums.unrealengine.com/t/using-the-time-synth-component-in-editor-and-game/130714)

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**Author:** [@chriszuko](https://forums.unrealengine.com/u/chriszuko)\
**Replies:** 4\
**Last updated:** [September 9, 2019, 4:38am UTC](https://forums.unrealengine.com/t/using-the-time-synth-component-in-editor-and-game/130714 "2019-09-09T04:38:04Z")

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I want to have a blueprint that can act as a machine which holds the time synth component and from here I can send the events to many many other actors that are connected by links. I have setup something very similar wit…

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## [World comp issues](https://forums.unrealengine.com/t/world-comp-issues/130560)

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**Author:** [@neighborlee](https://forums.unrealengine.com/u/neighborlee)\
**Replies:** 10\
**Last updated:** [September 7, 2019, 2:17pm UTC](https://forums.unrealengine.com/t/world-comp-issues/130560 "2019-09-07T14:17:19Z")

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Current 4.22.3 working with just terrain nothing else, I’m getting weird distortions if that’s the word, one of my terrain tiles, as seen in world comp view, see below: https://1drv.ms/u/s!AvVOuPY0RaB5hekHg8nEAC5IQTHMgA …

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## [How to change the color of Unreal's built in subtitles?](https://forums.unrealengine.com/t/how-to-change-the-color-of-unreals-built-in-subtitles/454964)

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**Author:** [@Brandon236](https://forums.unrealengine.com/u/Brandon236)\
**Replies:** 4\
**Last updated:** [September 7, 2019, 10:49am UTC](https://forums.unrealengine.com/t/how-to-change-the-color-of-unreals-built-in-subtitles/454964 "2019-09-07T10:49:45Z")

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I’m currently using UE’s built in subtitles with all my audio but the problem is that my game mostly consists of white walls which means the subtitles are very difficult to read. Is there a way to change the color?

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## [BlueprintNativeEvent override Crash](https://forums.unrealengine.com/t/blueprintnativeevent-override-crash/417603)

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**Author:** [@StarfireDev](https://forums.unrealengine.com/u/StarfireDev)\
**Replies:** 2\
**Last updated:** [September 6, 2019, 6:39pm UTC](https://forums.unrealengine.com/t/blueprintnativeevent-override-crash/417603 "2019-09-06T18:39:23Z")

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I have no idea why all my attempts to override a BlueprintNativeEvent are not doing well. Basically, after inheriting AGameModeBase class and overriding the method UFUNCTION(BlueprintNativeEvent, Category=Game) AActor…

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## [teleport breaks Sound triggers](https://forums.unrealengine.com/t/teleport-breaks-sound-triggers/454864)

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**Author:** [@kingace3](https://forums.unrealengine.com/u/kingace3)\
**Replies:** 6\
**Last updated:** [September 6, 2019, 7:20am UTC](https://forums.unrealengine.com/t/teleport-breaks-sound-triggers/454864 "2019-09-06T07:20:53Z")

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So I set up a small sound system that basically plays a sound to simulate outside ambience. There are 3 trigger boxes. One for when you are outside the house, by the door which plays half volume, and one inside where it …

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## [About audio input device](https://forums.unrealengine.com/t/about-audio-input-device/454845)

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**Author:** [@anonymous\_user\_52e83c2a](https://forums.unrealengine.com/u/anonymous_user_52e83c2a)\
**Replies:** 0\
**Last updated:** [September 4, 2019, 10:47am UTC](https://forums.unrealengine.com/t/about-audio-input-device/454845 "2019-09-04T10:47:43Z")

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How do we know if a voice input device is available, such as if the microphone has been plugged in or pulled out, i can also listen for microphone unplug or insert events while the game is going on

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## [is it possible to make ios audio synth?](https://forums.unrealengine.com/t/is-it-possible-to-make-ios-audio-synth/454835)

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**Author:** [@anonymous\_user\_2b014f0d](https://forums.unrealengine.com/u/anonymous_user_2b014f0d)\
**Replies:** 0\
**Last updated:** [September 4, 2019, 6:26am UTC](https://forums.unrealengine.com/t/is-it-possible-to-make-ios-audio-synth/454835 "2019-09-04T06:26:37Z")

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I am a new Unreal user. I have experience in audio programming using Max/Pure Data. Unfortunately, I cannot compile the patches into standalone apps. I thought of using Unreal Blueprint since I can easily test and distri…

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## [Audio - Mobile lag with multiple sounds](https://forums.unrealengine.com/t/audio-mobile-lag-with-multiple-sounds/401244)

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**Author:** [@Piranhi](https://forums.unrealengine.com/u/Piranhi)\
**Replies:** 2\
**Last updated:** [September 3, 2019, 11:31pm UTC](https://forums.unrealengine.com/t/audio-mobile-lag-with-multiple-sounds/401244 "2019-09-03T23:31:53Z")

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Hey, I have a sound which I play about 20 times in a row in quick succession (as level widgets pop up on a level selection screen). On the PC this works fine. On the mobile, each sound seems to hit the phone and cause…

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## [Mixing Non-Linear Audio in Unreal Engine Using Sound Classes and Ducking](https://forums.unrealengine.com/t/mixing-non-linear-audio-in-unreal-engine-using-sound-classes-and-ducking/130533)

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**Author:** [@anonymous\_user\_4cb11a31](https://forums.unrealengine.com/u/anonymous_user_4cb11a31)\
**Replies:** 0\
**Last updated:** [August 31, 2019, 9:58pm UTC](https://forums.unrealengine.com/t/mixing-non-linear-audio-in-unreal-engine-using-sound-classes-and-ducking/130533 "2019-08-31T21:58:47Z")

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I recently launch a YouTube channel for Sound Design and Game Audio using Unreal Engine. Check out my latest video on how to use sound classes and mix modifiers to mix in-game audio using a process known as ducking. . Fe…

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## [How do i add weapon customization to a game](https://forums.unrealengine.com/t/how-do-i-add-weapon-customization-to-a-game/454678)

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**Author:** [@mechanico2](https://forums.unrealengine.com/u/mechanico2)\
**Replies:** 0\
**Last updated:** [August 31, 2019, 4:02pm UTC](https://forums.unrealengine.com/t/how-do-i-add-weapon-customization-to-a-game/454678 "2019-08-31T16:02:53Z")

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im trying to make a game that takes insperation from sunset overdrive sanctum and loadout but i dont know how to add weapon customization to a project these are going to be custom weapons that can fire everything from re…

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## [Using marketplace assets in class](https://forums.unrealengine.com/t/using-marketplace-assets-in-class/453607)

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**Author:** [@cridia](https://forums.unrealengine.com/u/cridia)\
**Replies:** 1\
**Last updated:** [August 30, 2019, 7:05pm UTC](https://forums.unrealengine.com/t/using-marketplace-assets-in-class/453607 "2019-08-30T19:05:26Z")

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I was wondering whether it is possible to use bought marketplace assets in a class setting? I am responsible for a class where I teach students to work with the Unreal engine, where the focus is primarily on blueprints. …

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## [No sound in UnrealEngine 4.22  (Linux, Gentoo x86\_64)](https://forums.unrealengine.com/t/no-sound-in-unrealengine-4-22-linux-gentoo-x86_64/454598)

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**Author:** [@anonymous\_user\_55d3d3dc](https://forums.unrealengine.com/u/anonymous_user_55d3d3dc)\
**Replies:** 1\
**Last updated:** [August 30, 2019, 6:44pm UTC](https://forums.unrealengine.com/t/no-sound-in-unrealengine-4-22-linux-gentoo-x86_64/454598 "2019-08-30T18:44:41Z")

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There is no sound at all in Editor. It is ON in editor, so the problem is not there. Here is a log: \[Spoiler\] \[2019.08.25-12.30.26:549\]\[ 0\]LogAudioMixer: Display: Audio Mixer Platform Settings: \[2019.08.25-12.30.26:5…

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## [Activating new audio engine for everyone?](https://forums.unrealengine.com/t/activating-new-audio-engine-for-everyone/129932)

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**Author:** [@anonymous\_user\_e04fe733](https://forums.unrealengine.com/u/anonymous_user_e04fe733)\
**Replies:** 2\
**Last updated:** [August 30, 2019, 7:26am UTC](https://forums.unrealengine.com/t/activating-new-audio-engine-for-everyone/129932 "2019-08-30T07:26:39Z")

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Right now im working on a project that wasnt started with the new audio engine on. So i manually went into the ini file and activated it. No problem. The problem is when we make a build of our game, it is not activated, …

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## [No sound on Oculus Quest](https://forums.unrealengine.com/t/no-sound-on-oculus-quest/130323)

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**Author:** [@anonymous\_user\_2d3b14b7](https://forums.unrealengine.com/u/anonymous_user_2d3b14b7)\
**Replies:** 3\
**Last updated:** [August 29, 2019, 1:45pm UTC](https://forums.unrealengine.com/t/no-sound-on-oculus-quest/130323 "2019-08-29T13:45:33Z")

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Hello! My game audio works fine on Windows but when I deploy and run it on Oculus Quest (Android) I get no sound at all. I think the issue is that no audio device is detected. GEngine-\>GetMainAudioDevice() gives nothing.…

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## [Sample rate in UE4](https://forums.unrealengine.com/t/sample-rate-in-ue4/130412)

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**Author:** [@alshkodrova](https://forums.unrealengine.com/u/alshkodrova)\
**Replies:** 1\
**Last updated:** [August 28, 2019, 7:10pm UTC](https://forums.unrealengine.com/t/sample-rate-in-ue4/130412 "2019-08-28T19:10:13Z")

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I am a little confused about the sample rate when it comes to audio in UE4. When it comes to importing audio files, the UE4 documentation states: “The engine currently supports importing uncompressed little endian 16 b…

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## [Hololens 1 streams audio only, no video](https://forums.unrealengine.com/t/hololens-1-streams-audio-only-no-video/454512)

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**Author:** [@anonymous\_user\_d8b4964b](https://forums.unrealengine.com/u/anonymous_user_d8b4964b)\
**Replies:** 0\
**Last updated:** [August 28, 2019, 8:04am UTC](https://forums.unrealengine.com/t/hololens-1-streams-audio-only-no-video/454512 "2019-08-28T08:04:28Z")

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Hi, Running virgin app in 4.23 preview (as it crashes in 4.22.3). Running HoloLens 1 with latest build (10.0.17763.678) and desktop on build 1903. When I enter the IP and click connect, the audio starts to stream to the…

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## [my project has Audion latency when i port it on mobile](https://forums.unrealengine.com/t/my-project-has-audion-latency-when-i-port-it-on-mobile/454487)

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**Author:** [@SpamBotWinner](https://forums.unrealengine.com/u/SpamBotWinner)\
**Replies:** 0\
**Last updated:** [August 27, 2019, 3:22pm UTC](https://forums.unrealengine.com/t/my-project-has-audion-latency-when-i-port-it-on-mobile/454487 "2019-08-27T15:22:43Z")

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When I port the game to android, all sounds have a latency before play. . I have no idea what’s wrong. i use “play sound at the location” to play sounds.

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## [Creating an audio stream](https://forums.unrealengine.com/t/creating-an-audio-stream/454298)

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**Author:** [@anonymous\_user\_2d3b14b7](https://forums.unrealengine.com/u/anonymous_user_2d3b14b7)\
**Replies:** 1\
**Last updated:** [August 26, 2019, 9:13pm UTC](https://forums.unrealengine.com/t/creating-an-audio-stream/454298 "2019-08-26T21:13:59Z")

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Hello I’m trying to use the new audio engine (AudioMixer) to open an output-only audio stream on an Android device (Oculus Quest). There isn’t much documentation on this but after having read the API reference and gone …

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## [Attenuation Occlusion works in some cases and not others, is it a bug?](https://forums.unrealengine.com/t/attenuation-occlusion-works-in-some-cases-and-not-others-is-it-a-bug/454378)

<div class="topic-metadata">

**Author:** [@vbs](https://forums.unrealengine.com/u/vbs)\
**Replies:** 1\
**Last updated:** [August 26, 2019, 2:22pm UTC](https://forums.unrealengine.com/t/attenuation-occlusion-works-in-some-cases-and-not-others-is-it-a-bug/454378 "2019-08-26T14:22:45Z")

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I have two Attenuation Data files, they both come from the “Spatial Audio Temple” project actually, and I set the Attenuation Occlusion settings identical to both, but one one file, the “SA\_BirdTweetAttenuation” the occl…

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## [How to toggle a sound on and off by clicking on a specific object](https://forums.unrealengine.com/t/how-to-toggle-a-sound-on-and-off-by-clicking-on-a-specific-object/454390)

<div class="topic-metadata">

**Author:** [@George\_Remus\_P](https://forums.unrealengine.com/u/George_Remus_P)\
**Replies:** 6\
**Last updated:** [August 26, 2019, 9:36am UTC](https://forums.unrealengine.com/t/how-to-toggle-a-sound-on-and-off-by-clicking-on-a-specific-object/454390 "2019-08-26T09:36:39Z")

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Hi! I’m working on a project using the First Person Adventure Game Template from the UE4 store. Currently I’m having trouble switching the sound on and off on my radio by clicking on it. I’ve tried working on the bluep…

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## [\[Linux\] No sound in UnrealEngine 4.22](https://forums.unrealengine.com/t/linux-no-sound-in-unrealengine-4-22/130281)

<div class="topic-metadata">

**Author:** [@anonymous\_user\_55d3d3dc](https://forums.unrealengine.com/u/anonymous_user_55d3d3dc)\
**Replies:** 0\
**Last updated:** [August 25, 2019, 1:07pm UTC](https://forums.unrealengine.com/t/linux-no-sound-in-unrealengine-4-22/130281 "2019-08-25T13:07:52Z")

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Hello! I have Gentoo x86\_64. There is no sound at all in Editor. It is ON in editor, so the problem is not there. Here is a log: \[spoiler\] \[2019.08.25-12.30.26:549\] 0\]LogAudioMixer: Display: Audio Mixer Platform Set…

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## [Why does execution continue even without a flow pin being connected?](https://forums.unrealengine.com/t/why-does-execution-continue-even-without-a-flow-pin-being-connected/454308)

<div class="topic-metadata">

**Author:** [@Goonix\_1](https://forums.unrealengine.com/u/Goonix_1)\
**Replies:** 1\
**Last updated:** [August 24, 2019, 5:02pm UTC](https://forums.unrealengine.com/t/why-does-execution-continue-even-without-a-flow-pin-being-connected/454308 "2019-08-24T17:02:21Z")

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So I’m having a go at generating some grids. I’ve set up a pretty dirty series of for loops to get my grid. Works fine, except the loop jumps around within itself without just exiting out for reasons I don’t understand. …

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