Emulator

Is not running full-speed? If the game isn't running full speed, then it makes sense to crackle as it's running out of buffer.

Yes it is running at full speed, try it for yourself :)

Fog: Did you intend to set this as a duplicate or not? There is a related issue that's marked Duplicates, but the issue status isn't set to Duplicate.

Cause of bug:

Hi Guys, after looking into this bug for the past few hours, its safe to say the cause of the clipping is when the in game audio files end. When you walk, or when a character finishes its dialog the clipping sound is made.

It seems this problem is within the game files itself rather than anything the emulator could fix unless there is something to fade the end of the files out.

I hope there is a good fix out there as this game is amazing!

Does this clipping happen on console???

It's definitely not the in the game on console, I just tested it just in case but I've been playing it for years. I doubt it's the dump, since it's happening to multiple people, including myself. I dumped it with Cleanrip on a Wii with The Homebrew Channel and it didn't prompt any error messages. The only way they all could be bad dumps is if the error is on the side of the riping program. It's also not the DSP Rom, since I also tested it with the DSP Rom I dumped from my Wii. My only idea is to dump the game again using my Gamecube (with the Viper GC chip and Cobra BIOS) to confirm that the error is not with the dump itself.

Just thought of something better. I know the dump I'm using right now has clipping on Dolphin, so I can burn that dump and run it on my Wii (I cannot find any blank MiniDVDs and I know I had some somewhere so I'll use regular DVDs, thus I need to use my Wii). If the clipping happens on my Wii, then it would be fairly safe to assume it's a problem with the dumps we're using.

I don't think that should be necessary. Others have already reproduced the issue, and CleanRip is a pretty reliable way of making a rip, so there's not much reason to suspect that a bad dump would be the reason for the issue.

The sound crackling is a bug in Dolphin, and does not happen on console. It's actually related to the audio issues in the other Harry Potter games, just incarnations of the same flaw.

It's reading past the end of the files in Dolphin.

So then it IS confirmed to be an issue with Dolphin. JMC4789 asking if it happened on console made me think it wasn't confirmed. Is it a matter of waiting or is there something I can test?

We confirmed it's a bug in Dolphin because a hack caused it to stop happening when testing.