Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.csd.uwm.edu!trantow
From: trantow@csd4.csd.uwm.edu (Jerry J Trantow)
Newsgroups: comp.sys.amiga
Subject: Re: Audio Improvements
Message-ID: <3896@csd4.csd.uwm.edu>
Date: 18 Aug 89 21:01:35 GMT
References: <3114@bucsb.UUCP> <1542@convex.UUCP>
Sender: news@csd4.csd.uwm.edu
Reply-To: trantow@csd4.csd.uwm.edu (Jerry J Trantow)
Distribution: na
Organization: University of Wisconsin-Milwaukee
Lines: 23

In article <1542@convex.UUCP> swarren@eugene.UUCP (Steve Warren) writes:
>In article <3114@bucsb.UUCP> robertl@bucsb.UUCP (Robert LaFerla) writes:
>>There has been discussion about how the audio can be improved on the Amiga.
>>One person suggested that CBM provide us with 8 channels of audio.  Two
>Two areas could be improved, the sample rate and resolution
>But 8 bits of resolution means audible quantization noise, which could
>only be improved by increasing the number of bits.  I wish we could get
Don't forget about adding channels (not adding waveforms) and volume 
modulation.  When you use all 8 bits the sample doesn't sound that bad.
The dissatisfaction occurs during the quiet parts of the sample when the
quantization is relatively large.  If you use volume modulation you can
adjust for this and use 8 bits keeping the relative quantization error 
the same thru the sample.
Now for my suggestion,
The waveform and volume D/As do not change simultaneously which gives a 
short glitch in the sound when doing volume modulation.  How about having
a S/H or synchronous action?
_____________________________________________________________________________
Jerry J. Trantow          | The concern for man and his destiny must always 
1560 A. East Irving Place | be the chief interest of all technical effort.
Milwaukee, Wi 53202-1460  | Never forget it among your diagrams and equations.
(414) 289-0503            |                               Albert Einstein
_____________________________________________________________________________