Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.2 9/5/84; site riccb.UUCP
Path: utzoo!watmath!clyde!cbosgd!ihnp4!ihopa!riccb!djb
From: djb@riccb.UUCP (Dave J. Burris )
Newsgroups: net.audio,net.auto
Subject: Re: Re: Phase distortion on music
Message-ID: <639@riccb.UUCP>
Date: Sat, 1-Mar-86 00:49:10 EST
Article-I.D.: riccb.639
Posted: Sat Mar  1 00:49:10 1986
Date-Received: Sat, 1-Mar-86 23:10:32 EST
References: <1582@emory.UUCP> <523@eneevax.UUCP> <445@unccvax.unccvax.UUCP> <281@twitch.UUCP> <1211@mtx5a.UUCP>
Distribution: net
Organization: Rockwell Telecommunications, Downers Grove,Il.
Lines: 21
Xref: watmath net.audio:7790 net.auto:9617

> 
> Tests a while ago (someone know the actual reference) indicated that
> phase distortions CAN cause subtle but audible changes in timbre when
> they occur between about 100 and 2000 Hz, with the most sensitive
> region being about 600 to 1200, if I recall.
> 

The keyword here is SUBTLE. Most source agree that a CONSTANT phase shift
is not distinguishable within X degrees (not sure of the number. I can attest
to the fact that phase cause timbre changes.

Can you say phase shifter?
Can you say flanger?
Can you say digital delay?

I knew you could!

-- 
Dave Burris
..!ihnp4!ihopa!riccb!djb
Rockwell Switching Systems, Downers Grove, Il.