Re: adding dither in audio signals

Jerry Avins <jya@xxxxxxxx> writes:

Randy Yates wrote:
gans1973@xxxxxxxxxxxxxx writes:

hi,
I had certain querries about adding dither in audio signals.
1) I presume one of the reasons to add it is to compensate for
quantisation error while
converting analog to digital. Is there any other reason for adding
it?
No.

How about converting digital of one amplitude to another (gain change)?

See my other post.

2) Is it added only when the signal strength is zero, or would it be
advantageous to add it
always. If quantization error is the primary consideration, I
presume it would be
advantageous to add it always. But it seems that there are some
systems,
where its added only when the signal strength is zero for
sufficient period of time.
Keep it on all the time. To go back and forth between dither/no
dither
is to modulate your noise floor, and that's not a good thing.

OT: It's snowing heavily in Central NJ right now. The grass is
covered, but not thee pavement (yet).

It's a lovely Spring day, in the 70s, here in central NC.
--
% Randy Yates % "My Shangri-la has gone away, fading like
%% Fuquay-Varina, NC % the Beatles on 'Hey Jude'"
%%% 919-577-9882 %
%%%% <yates@xxxxxxxx> % 'Shangri-La', *A New World Record*, ELO
http://home.earthlink.net/~yatescr
.

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