[Q] No Sound after installing Paranoid Android

[Jagay]

Hello, xda-developers!
I unlocked my bootloader, installed CWM Recovery and rooted my tablet.And I decided to install a custom rom.
So I entered CWM, wiped data/factory reset, wiped Dalvik Cache, formated /system and installed pa_tf300t-2.53-03NOV2012-152643.zip and gapps-jb-20121011-signed.zip.After that, I rebooted my TF300TG tablet.
Everything is OK, but I don't have any sound.What can I do?

Thanks in advance!