Re: M10 noise removal, was Sony PCM-M10 vs Zoom H4n best for outdoor

["Avocet" madl74]

> Peter mentioned on his Soundcloud example, the hiss he was concerned
> with was mostly below 5kHz. To my own ears the problematic
> microphone hiss noise in that recording was most prominent from 8 to
> 10 kHz.

John,

In my previous email I indirectly defined "hiss" in my HPF
specification as being 4KHz and above, in other words the top two
octaves. "Thermal" (root f) mic hiss goes right up as high as you
record and to my ears anyway sounds different. The bottom end noise
(the bottom four octaves?) is "rumble" but I can't think of a
universal name for mid range noise except "mid range noise". :-)

I'll back you up on annoying hiss being 8 to 10 Khz and this is
recognised in the "468" weighting for background noise measurements.

BTW at my fairly advanced age of 71 my own frequency response still
goes from 10Hz to 12KHz which is not bad. That's still over 10
octaves.

David

David Brinicombe
North Devon, UK
Cogito cogito ergo cogito sum - Ambrose Bierce