I’ve noticed that the earpiece on the DP720 handset seems to add a lot of bass to the remote party’s voice, making it sound booming or muffled. This is more an issue with male voices than female voices. It doesn’t happen when using the speaker or a headset, which both sound more balanced. Has anyone else noticed this? Is it adjustable somehow? I didn’t see any setting in the GUI but perhaps via the XML configuration file?
Some DECT phones have an “equalizer” setting to adjust the audio characteristics; I’m looking for something like this to reduce the bass frequencies in the earpiece.
I’m using the G.711 codec, though I don’t think this is relevant.