Originally Posted by iWrangleKoalas
I have tried everything reflashing my rom, flashing different roms, going back to stock, rebooting, and I tried your above suggestion and nothing works the sound is not working and I am 100% sure that I didnt break the speaker I havent dropped this phone since i got it last week
The "Unfortunately, DSP Manager has stopped" points more to a software issue, than hardware... but anything is possible.
How did you go back to stock? Did you do a factory reset or flash the tar files in Odin? I you odin back to stock and still can't hear anything, then it is most likely a hardware issue and probably best to take it in to ATT.
ATT Galaxy S4 -- NC1 Base -- Safestrapped