so i've used MPT to send ringtones to my V557 phone. the mp3's i've sent are 128kbps, but they arrive in my phone as 32kbps. when i play them, the highs are decent but the lows make it sound like my phone's speaker is blown. it's like that sound ur iPod earphones make after you've blown 'em. long story short, they're not as clear as i expected. any1 know how i can change that?