Re: [ARSCLIST] Sampling and bit rates, was 78 Listening tests

[Jerry Hartke <jhartke@xxxxxxxxxxxx>]

I think that these "subtle interactions" are intermodulation distortion.
Faithful reproduction requires zero harmonic and intermod distortion, but
these are always present to different degrees. Also, equipment may specify
distortion at frequencies well within the audible range, but can degrade
rather badly at very high and very low frequencies when very low distortion
depends on frequency dependent feedback.

Best to omit content at such uncontrolled frequencies.

Jerry Hartke
Media Sciences, Inc.

> -----Original Message-----
> From: Association for Recorded Sound Discussion List
> [mailto:ARSCLIST@xxxxxxx] On Behalf Of Scott Phillips
> Sent: Monday, December 10, 2007 4:25 PM
> To: ARSCLIST@xxxxxxxxxxxxxxxx
> Subject: Re: [ARSCLIST] Sampling and bit rates, was 78 Listening tests
> 
> 	Perhaps if the same blind tests were run on 8 year old kids they
> would hear the difference. Age and exposure to loud noises take their
> toll on the rest of us. I still think there are subtle interactions with
> 18khz-35khz information that a CD loses. The fact that my ears
> reasonable top end response measures now at 14khz means I'm not going to
> notice much of that at best case. I spent years in studios and was very,
> very careful about loudness... to the point of carrying an SPL meter
> most of the time, along with ear plugs. Until I was in my early 40's, TV
> monitors used to drive me nuts with the squeal.
> 
> I'd have to agree personally, the difference between 16 and 24 bit is
> plain to me most of the time... my imagination ?? Hope not.
> 
> Scott