If you look at a Spectral Frequency Display in Adobe Audition (I think Soundbooth too) you can see that the low-frequency hum comes up to almost 500Hz, and overlaps with the low-end of their speech.
Dunno what you can do.
If you look at a Spectral Frequency Display in Adobe Audition (I think Soundbooth too) you can see that the low-frequency hum comes up to almost 500Hz, and overlaps with the low-end of their speech.
Dunno what you can do.