Emulator

Game Name?
Super Smash Bros. Brawl

Game ID?
RSBE01

What's the problem? Describe what went wrong in few words.
Emulated WiiMote audio for character selection is low pitched and distorted.

What did you expect to happen instead?
The sound should play correctly.

What steps will reproduce the problem?

1. Make sure WiiMote speaker data is enabled
2. Start brawl with an emulated WiiMote connected
3. Select any character on the character select screen

Dolphin 3.5 and 3.5-367 are old versions of Dolphin that have
known issues and bugs, so don't report issues about them and test the
latest Dolphin version first.
Which versions of Dolphin did you test on?
4.0-5110
4.0-3518

Does using an older version of Dolphin solve your issue? If yes, which
versions of Dolphin used to work?
N/A

What are your PC specifications? (including, but not limited to: Operating
System, CPU and GPU)
Windows 8, AMD FX(tm)-6300 Six-Core Processor, AMD Radeon R7 200 Series, 8GB Ram, Realtek High Definition Audio (Driver 6.0.1.6657), AMD High Definition Audio Device (Driver 9.0.0.9905)

Is there any other relevant information? (e.g. logs, screenshots,
configuration files)
The issue can be heard most clearly with Bowser.