Some of you might be familiar with the audio quality for playback on the Samsung Galaxy S variants, and it sound like the Samsung Galaxy 3 suffers from the same.
There is a way to fix this and XDA forum member FadeFx (thanks to Supercurio for the SGS version), has posted how to correct the settings in the servicemode app.
You’ll have to go to ServiceMode and select Audio/Headset/TX value/Tx filter and adjust the settings to zero.
The good news is that unlike the SGS, the SG3 settings will persist on reboot, so you’ll only have to make the adjustments once.
For full instructions, head on over to forum thread._________