They just reduced the frequency in today's patch. It's already a step backwards as far as I'm concerned and I would hate to see it get even more "quiet".
Honestly, if people are having a problem tuning out these distant voices to the point where they're just subtle background noise, you probably need to do some adjustment on your individual volume settings in the audio options panel. I would imagine any sound would get annoying if it's repeated *loudly*. The key there is to make it less loud, which you have the ability to do.
