spectral mapping via matlab

>Did you make the music _in_ Matlab?

Are you kidding? No way...

>I use Matlab for just about
>everything, but haven't used it to make music yet (aside from
>isolated chords). Can you describe your procedure more fully?

The part that I use Matlab for is the spectral mapping stuff.
Basically, I begin with a sound I like, turn it into a wav file,
which can then be read into Matlab via the "wavread" command.
What matlab does nicely is to take FFTs and lets me manipulate
the sounds in the frequency domain - since its a programming
language, it'll do anything you ask (albeit non-real time and
somewhat awkwardly... please dont take me for an advocate of
Matlab, its just a daily fact of life in my department.)

After suitable manipulation (in this case, moving the various
partials of the sound around a bit), I translate it back into
a time signal and then into a wav file.

Usually the sounds I start with are from an ASR-10 sampler, so I then
take the spectrally mapped versions and put them back into
the sampler - rebuilding the "instruments" (collections of
samples that get played together) more or less as they were.
So then I sequence and/or play the pieces from the sampler.

>P.S. I posted some words about your 19-tET piece on the Tuning List --
> you might want to check in over there for people's reactions.

Thanks... I'll look over there...

Bill Sethares

Bill, no one can seem to download the musical examples on your
website. I'd love to hear them -- though "circle of thirds" was on
the same tuning tape swap that I was on, it didn't do much for
me . . . I've heard great things about your other music though (I
think I also heard "Duet for Morphine and Cymbal" since it's on
Tuning Punks or something).

What happens when I try to download something from your website is
that it begins downloading but the "time remaining" never decrements -
- it keeps "downloading" forever.

Help!

[Paul wrote:]
>Bill, no one can seem to download the musical examples on your
>website. I'd love to hear them -- though "circle of thirds" was on
>the same tuning tape swap that I was on, it didn't do much for
>me . . . I've heard great things about your other music though (I
>think I also heard "Duet for Morphine and Cymbal" since it's on
>Tuning Punks or something).

Hmmm! I'm not having any trouble downloading Bill's MP3's; just did
them all. I'm running Windoze ME with IE 6.0.2600.0000. I'd be glad to
e-mail any of them to anyone; of course they are rather fat for a
dial-up e-mail connection, and Graham warns that e-mailing large files
is less efficient than, say, FTP'ing them (because binary files are
encoded in text format). Have you tried sitting on the MP3 root
directory:

http://eceserv0.ece.wisc.edu/~sethares/mp3s/

and right-clicking on one, then Save Target As? Just something else to
try... I'm not able to make it fail by any means I've tested.

Anybody e-mail me off-list (jdl"at"adaptune.com) if you want some.

JdL

--- In MakeMicroMusic@y..., "John A. deLaubenfels" <jdl@a...> wrote:

/makemicromusic/topicId_1152.html#1161

> Hmmm! I'm not having any trouble downloading Bill's MP3's; >

> http://eceserv0.ece.wisc.edu/~sethares/mp3s/
>
> and right-clicking on one, then Save Target As?

I'm having no trouble just "clicking on" these and playing them in,
what looks like Quicktime, right off. Lots of good stuff here!

Joseph Pehrson

--- In MakeMicroMusic@y..., "John A. deLaubenfels" <jdl@a...> wrote:

> Have you tried sitting on the MP3 root
> directory:
>
> http://eceserv0.ece.wisc.edu/~sethares/mp3s/
>
> and right-clicking on one, then Save Target As?

Strangely, that worked!

Hi Bill,

At the end of "Turquoise Dabo Girl", you have what sounds sort of
like a 4:6:7:9 chord. Now 4:7:9 is actually very accurate in 11-tET,
but of course the "6" isn't represented at all. Did you map this down
to 654 cents, or up to 763 cents? I'm guessing the former, but
actually I'm not quite sure. I have a very good ear, but evidently
when you screw with the timbres, you're removing its usual points of
reference!

Scratching my head,
Paul