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testing.
my last mail didnt make it to the list.
------------------------------
jti@io.com
http://www.io.com/~jti/
http://www.sonictherapy.com/fluoroscopic/fk.html
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Date: Sun, 13 Jun 1999 20:50:16 +0200
From: Josep M Comajuncosas
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Subject: Exciters !
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Hi all,
I=B4ve been trying to improve my old psychoacustic exciters without much
success (and I spent lots of time with the filters...brrr). I wonder if
some of you could give me some orientation or maybe some good
documentation online about the subject.
I considered to enhance the region of 2-4kHz (the most sensitive to our
ears) and generating some harmonics falling there by applying some
waveshaping in the lower regions, but I have no real idea about all the
tricks ... any idea?
--
Josep M Comajuncosas
C/ Circumval.lacio 75 08790 Gelida - Penedes
Catalunya - SPAIN
home phone : 93 7792243 / 00 34 3 7792243
Csound page at http://members.tripod.com/csound/
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From: Sherlock
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Subject: Alone
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I was wondering if there were any newbies who feel alone in this Csound
programming.
There's no need to feel lonely. Csound is the best sound processing
language out there. Best, because of men like John Fitch working on.
Robin Whittle. Barry Verco. You can use Csound as a tutorial into sound
making. Right now, the best synthesizer for the home is on the PC, UNIX,
MAC, etc. Csound is what I use. My name is Robert McNulty Junior.
I have been programming computers for nearly 16 years. The best
programming language for a computer to make sound is Csound. Look at the
Xanadu project.
I like making music on my computer. I like sound. In fact, with MIDI2CS,
CONVERT, the Compaq WAV recorder, CSOUND, etc, I can make my own
"groovy" music. The best music comes from the heart, not a song sheet.
MIDI2CS takes a MIDI file and makes two files, a SCO and a ORC. A long
time ago, these were one file. Well, MIDI2CS allows us to use our own
sounds in our music. This is neat.
Well, there is a problem with this. If you record yourself humming, and
convert it to AIF and use in as part of a music file, you get a Munchkin
sound or Alvin the Chipmunk. Any way to resample this?
________________________________________________________
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Date: Sun, 13 Jun 1999 23:03:46 -0500
From: pete moss
Organization: pete moss GmbH
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> Csound is what I use. My name is Robert McNulty Junior.
what a great line! reminds me of joe friday from dragnet. do you use
this line on chicks in bars? i bet it would work great!
pete :)
PC: the use of the word 'chicks' in this post is not meant to demean any
chicks on this list, or any other chicks for that matter.
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From: Michael Gogins
To: The CSound mailinglist ,
Ed Hall
Subject: Re: double/float times
Date: Mon, 14 Jun 1999 00:33:15 -0400
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Thanks for taking the time to make this test.
>From my point of view, if there is an audible difference between single and
double precision floats, and if the sound processing is NOT broken, it can
safely be assumed that the double precision version is... more precise.
Although to the (Ed Hall, anyway) audience there may not be an esthetic
difference, the more precise rendering should in general be superior for the
artist, by virtue of offering more control.
Could you post or mail me the wrapper script so that I can try this myself?
-----Original Message-----
From: Ed Hall
To: The CSound mailinglist
Date: Thursday, June 10, 1999 8:57 PM
Subject: double/float times
>This was done in a great deal of haste, but given some of the claims
>made here I just had to make a small test. In essence, I start with the
>wrapper script I used to allow Csound to compile on 64-bit machines
>and modified it to convert float to double throughout Csound. It took
>all of fifteen minutes to produce two binaries for Csound 3.54, one
>with floats, the other with doubles. For all I know, the latter is
>broken 100 different ways, but at least it ran the "Xanadu" orc and sco
>that have been used for benchmarking. (See:
>
> http://members.tripod.com/~slinkP/pw_linux/csbench.html
>
>for the benchmark.)
>
>Here are the results:
>
> float: 95.72 seconds
> double: 107.47 seconds
>
>So the double version is about 12% slower. Details:
>
> Dell D333XP 333MHz: Pentium II w/128MB RAM runing RedHat 5.2 Linux.
> Csound 3.54 Compiled with EGCS 1.1.2, options "-O3". 16-bit IRCAM
output.
>
>I've listened to the outputs of both versions a couple of times, and
>there are very slight differences which appear to have to do with
>oscillator phasing (the beats between voices toward the end of the
>piece sound just slightly different). This may be an actual difference
>due to 32- vs. 64-bit floating point, or may be some breakage due to
>the rather blunt way I did the conversion. Aesthetically, they were
>equivalent--there certainly wasn't anything that would make me prefer
>one over the other.
>
>This is really more time than I ever intended to spend on this issue.
>Someday I'll benchmark more scores and more platforms, but you'll have
>to wait...
>
> -Ed
>
>
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Date: Mon, 14 Jun 1999 10:03:21 +0200
From: KH
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Subject: problem with rescaling??
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Hello
I have an unusaual problem while using floats rescaled to 16-bits
ints.
I'm working on the Mac Csound, and this problem appears sometimes.
While computing the sound everything seems ok , but when it comes to the
rescaling dialogue
the disk freezes, everything freezes, and i must reboot! this happens
sometimes, not always. I could send my orc&sco but i use in the
incriminated files a loscil with two samples, so i don't want to attach
it so not to load the mailing list.
Does someone have an answer to that problem???
Thanks
(i'll send if necessary the orc&sco as text...)
Karim
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To: The CSound mailinglist
Subject: Re: double/float times
In-Reply-To: Your message of "Mon, 14 Jun 1999 00:33:15 EDT."
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Date: Mon, 14 Jun 1999 01:37:23 -0700
From: Ed Hall
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> Although to the (Ed Hall, anyway) audience there may not be an esthetic
> difference, the more precise rendering should in general be superior for the
> artist, by virtue of offering more control.
I don't disagree that the extra precision might be useful. But it's wasted,
in my opinion, when used to pipe audio around, or in constructing ftables
where interpolation error will be many times larger than single-precision
roundoff error. In brief, the "control" I want is the ability to select
when and where 64-bit precision is used. As for any slight difference in
the behavior of phasors (whether explicit or implied by oscil and friends),
that was one of the few effects I expected from the change in precision--
so I was expecting to hear it. On further listening I'm much less sure
that there is any audible difference between the two, although on the
16-bit sample level the two sound files are definitely numerically different.
BTW, I lose about 19% on Alpha when going from float to double--which is
the difference from running the Xanadu benchmark in real time, or not-quite-
real-time.
-Ed
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From: JM&M DARREMONT
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I've also this problem with any kind of orc&sco.=20
Sometimes it just freezes and come again after 30s or so. Sometimes it re=
ally crashes.
I work on Mac sytem 7.6.1 CSound 3.54
Thanks
KH a =E9crit:
>=20
> Hello
>=20
> I have an unusaual problem while using floats rescaled to 16-bits
> ints.
>=20
> I'm working on the Mac Csound, and this problem appears sometimes.
> While computing the sound everything seems ok , but when it comes to th=
e
> rescaling dialogue
> the disk freezes, everything freezes, and i must reboot! this happens
> sometimes, not always. I could send my orc&sco but i use in the
> incriminated files a loscil with two samples, so i don't want to attach
> it so not to load the mailing list.
> Does someone have an answer to that problem???
> Thanks
> (i'll send if necessary the orc&sco as text...)
>=20
> Karim
--=20
Jean-Michel DARREMONT
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