Sound is Broken in 4.12 to 4.14. Update: Sound Mixes are broken but found a work around
I've been tackling this bug ever since updating to 4.12 to 4.14. I am having issues with new sounds not playing after the number of total sounds reaches 30 inside stat sounds. After it reaches over 30 I pause the game, and within the pause menu I have dialog that plays about 40% of the time. I have the ability to spam it (As it is a lengthy dialog of a note playing) and it doesn't play every time. I have messed with the concurrency and set default up to allow 300 sounds to play but it still doesn't work properly. Within stat sound it shows that it is playing and has a volume. But no sound comes out.
I had recently updated from 4.10 to 4.12, 4.13, and now 4.14. If that matters.
I've attached a picture as proof that it is playing inside stat sounds but there is no audible sound. The nightmare sound is the one that is supposed to be audible but isn't
Any help would be greatly appreciated.
Edit: Talking to my team I believe this issue started with 4.12. We went from 4.10 to 4.14 in a week because of these random audio bugs. It seemed better in 4.14 until we went into areas of high number of sounds playing at one time.
Eureka! Ok this may sound weird but I solved it, and may help everyone else.
I've been using a SoundClass with a SoundMix that adjusts a sound classes to 0. Now if the SoundClass you are mixing is set to 0, and playing in the world, there is a chance that the sound you are trying to play, will not play (meaning it will play but not audible). I fixed this issue by setting the sound that was 0, to 0.1 and it worked, my repro case which had 100% chance to break now worked everytime. I then attempted to adjust the volume of another class that was playing to 0, and the bug occured again. I then set it back to 0.1 and attempted a sound class that was not playing. The bug did not occur. I believe the break is in the SoundMix and has been occurring for awhile.
answered Dec 21 '16 at 07:42 PM
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