CyanogenMod/android_device_lge_p500 — comment on commit e112a1094996ab8a00dbb70838a0e21a382b229c
File:  line 0
By androidmeda:

FM radio still has noise (bass effect) after 5 minutes.
How we will disable MBADRC filter for fm radio completely?

new_post_proc_feature_mask = (ADRC_ENABLE | EQ_ENABLE | RX_IIR_ENABLE | MBADRC_ENABLE);
if (mFmRadioEnabled) {
LOGI("Routing audio to FM Headset\n");
new_snd_device = SND_DEVICE_FM_HEADSET;
new_post_proc_feature_mask &= MBADRC_DISABLE;
} else {
LOGI("Routing audio to Wired Headset\n");
new_snd_device = SND_DEVICE_HEADSET_STEREO;
}

}