Sounds created by client stutter and pop when looping

[TwentyTwoPilots (twonty)]

Due to some recent update to the way sound replicates, the tire-on-road sounds started glitching out in my games. I guessed it had to do with sound changes replicating in a way I wasn’t expecting, so I just shifted the offending sounds over to the client completely; instead of being created on the server and manipulated by the client, I altered it so that the sounds are created and manipulated on the client. Problem averted, right? Wrong.
Unfortunately, this uncovered a new sound problem as demonstrated in the video below. Whenever the sound loops, it stutters and pops a bit instead of seamlessly starting over like it would when the sound object was created on the server.

I can’t seem to repro it with a baseplate for some reason, but the only manipulation the client is doing to the sound is altering the pitch and volume. It’s occurring with all the sounds I use for the game, here’s one of them.

Here’s a video demonstrating the issue, stutters can be noticed at 0:03, 0:41, 0:52, and 1:03.

Tagging @spotco since you’ve been working on a lot of these neat new audio updates, this might be of interest to you.

[spotco]

Do you know what causes the pops? Can you make it happen in one script?

[TwentyTwoPilots (twonty)]

SoundGlitch.rbxm (846 Bytes)

Drop this into StarterCharacterScripts then publish it to an online place. It’s significantly less pronounced in this environment, but you can still hear a slight crackle when it loops that wasn’t there when I was creating the sound on the server.

I ended up fixing it myself by having the script copy the sounds and set their ID and parent instead of creating them from scratch.