24 May
2006
24 May
'06
5:46 a.m.
Thanks for reply.
I wanted to try by myself and I made last night a
quick hack for extreme time stretching by using FFTs.
I like the results very much.
Here are some demos (the links will work only for few
days):
Original sound is this:
http://zeus.integrasoft.ro/~nop/1stretch_paul_in1.ogg
Stretched (over 60x) is this:
http://zeus.integrasoft.ro/~nop/1stretch_paul_out1.ogg
Please tell me your opinion about the stretched sound.
The program is not complete (is just a quick hack
written in about one hour), but if you are interested,
I can put it somewhere on net (and make it usable and
improve the quality :) ).
Paul
>Hi.
>I found out a very interesting page and a webcast
>about the 9'th symphony of Beethoven stretched to 24
>hours here:
>http://www.park.nl/park_cms/public/index.php?thisarticle=118
>And on this page ( http://www.notam02.no/9/tech.htm
)
>I found that for this was used CLM and SND.
>How can I do the same?
Its just a simple granulate processing with a tiny
bit
of reverb on top.
Halfly pseudo, it can look like this:
(let* ((read0 (make-readin filename #:channel 0))
(read1 (make-readin filename #:channel 1))
(gr0 (make-granulate #:expansion 22.0
#:length >0.15 #:hop 0.03))
(gr1 (make-granulate #:expansion 22.0
#:length >0.15 #:hop 0.03)))
(do-X-number-of-times
(output-to-file file-object (granulate gr0
(lambda >() (readin read0)))
(granulate gr1
(lambda >() (readin read1))))))
Very simple. You have to tune the length and hop
sizes >though, plus volume
> It's possible to do this in
> batch mode?
Yes, the first first version of this stretch was
actually run in batch
I didn't want to stay up all night generating all the
files. :-)
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24 May
24 May
7:48 a.m.
On Wed, May 24, 2006 at 12:46:20AM -0700, Paul wrote:
Original sound is this:
http://zeus.integrasoft.ro/~nop/1stretch_paul_in1.ogg
Stretched (over 60x) is this:
http://zeus.integrasoft.ro/~nop/1stretch_paul_out1.ogg
Please tell me your opinion about the stretched sound.
Pretty cool. Surprisingly smooth. This could be a nice way
to generate some atmospheric sounds :)
Cheers,
Thorsten Wilms
10:59 a.m.
New subject: [linux-audio-user] Re:How can I time-stretch the sound like this (with SND & CLM)
On Wed, 2006-05-24 at 00:46 -0700, Paul wrote:
Thanks for reply.
I wanted to try by myself and I made last night a
quick hack for extreme time stretching by using FFTs.
I like the results very much.
Here are some demos (the links will work only for few
days):
Original sound is this:
http://zeus.integrasoft.ro/~nop/1stretch_paul_in1.ogg
Stretched (over 60x) is this:
http://zeus.integrasoft.ro/~nop/1stretch_paul_out1.ogg
Please tell me your opinion about the stretched sound.
The program is not complete (is just a quick hack
written in about one hour), but if you are interested,
I can put it somewhere on net (and make it usable and
improve the quality :) ).
that's freakin' fantastic! totally up my alley.
i have a wonderful piece that a friend of mine made with an experimental
musician : they recorded drumming on a 55 gallon empty molasses
container, then slowed it down about 45x, sampled it and did some
composition with the result. the resulting sound is deeply harmonic and
moving, and totally unrelated to the source material some of that comes
specifically from artifacts created by the eventide they used for the
slowdown.
this is lacking the artifacts (understandably), but it has similar depth
and majesty. it would be interesting to run this through freqtweak to
get a little more low end.
--p
9:58 p.m.
New subject: [linux-audio-user] Re:How can I time-stretch the sound like this (with SND & CLM)
el Wed, 24 May 2006 00:46:20 -0700 (PDT)
Paul <paulgfx(a)yahoo.com> escribió:
I wanted to try by myself and I made last night a
quick hack for extreme time stretching by using FFTs.
I like the results very much.
and it really sounds great, paul. would you care to explain a bit the
techniques used? i'd like to try something like that using csound, the only
language i know.
some time ago i wrote a time-stretching instrument using the phase vocoder
opcodes, and the quality of the result was very good for factors not
beyond 10 or 12 times. but after that the artifacts were too noticeable for
my taste. i haven't tried again recently, there are some new opcodes that i
should experiment with, like the ATS opcodes. but your results are very
impressive, indeed.
best,
lj
--
25 May
25 May
3:51 a.m.
Paul wrote:
--
Brad Fuller
Sonaural Audio Studio
+1 (408) 799-6124
Hear us online www.Sonaural.com <http://www.sonaural.com/>
See me on O'Reilly <http://www.oreillynet.com/pub/au/2184>
Thanks for reply.
I wanted to try by myself and I made last night a
quick hack for extreme time stretching by using FFTs.
I like the results very much.
Here are some demos (the links will work only for few
days):
Original sound is this:
http://zeus.integrasoft.ro/~nop/1stretch_paul_in1.ogg
Stretched (over 60x) is this:
http://zeus.integrasoft.ro/~nop/1stretch_paul_out1.ogg
Please tell me your opinion about the stretched sound.
The program is not complete (is just a quick hack
written in about one hour), but if you are interested,
I can put it somewhere on net (and make it usable and
improve the quality :) ).
Paul
FYI: This was on the dsp-music mailing list:
Hello!
We are a team of audio DSP people trying to squeeze everything out of
the hardware. Assuming that product announcements are allowed on the
Music DSP mailing list, we'd like to draw the attention of its
subscribers to our new fast yet high-quality real-time timestretching
with transient processing and resampling libraries written 100% in
Assembler with highly optimised FPU, 3DNow! and SSE versions,
auto-selected for any x86 CPU. For more information, demo players /
plugin and licensing, visit our web site - http://www.dspteam.com/
Thanks for your time!
Audio DSP team
> Hi.
> I found out a very interesting page and a webcast
> about the 9'th symphony of Beethoven stretched to 24
> hours here:
> http://www.park.nl/park_cms/public/index.php?thisarticle=118
> And on this page ( http://www.notam02.no/9/tech.htm
>
)
> I found that for this was used CLM and SND.
> How can I do the same?
>
Its just a simple granulate processing with a
tiny
bit
of reverb on top.
Halfly pseudo, it can look like this:
(let* ((read0 (make-readin filename #:channel
0))
(read1 (make-readin filename #:channel 1))
(gr0 (make-granulate #:expansion 22.0
#:length >0.15 #:hop 0.03))
(gr1 (make-granulate #:expansion 22.0
#:length >0.15 #:hop 0.03)))
(do-X-number-of-times
(output-to-file file-object (granulate gr0
(lambda >() (readin read0)))
(granulate gr1
(lambda >() (readin read1))))))
Very simple. You have to tune the length and hop
sizes >though, plus volume
> It's possible to do this in
> batch mode?
>
Yes, the first first version of this stretch was
actually run in batch
I didn't want to stay up all night generating all the
files. :-)
__________________________________________________
Do You Yahoo!?
Tired of spam? Yahoo! Mail has the best spam protection around
http://mail.yahoo.com
4:31 a.m.
New subject: [linux-audio-user] Re:How can I time-stretch the sound like this (with SND & CLM)
On Wed, 2006-05-24 at 22:51 -0700, Brad Fuller wrote:
FYI: This was on the dsp-music mailing list:
Hello!
We are a team of audio DSP people trying to squeeze everything out of
the hardware. Assuming that product announcements are allowed on the
Music DSP mailing list, we'd like to draw the attention of its
subscribers to our new fast yet high-quality real-time timestretching
with transient processing and resampling libraries written 100% in
Assembler with highly optimised FPU, 3DNow! and SSE versions,
auto-selected for any x86 CPU. For more information, demo players /
plugin and licensing, visit our web site - http://www.dspteam.com/
Proprietary license, huh?
Lee
1:36 p.m.
New subject: [linux-audio-user] Re:How can I time-stretch the sound like this (with SND & CLM)
Lee Revell wrote:
On Wed, 2006-05-24 at 22:51 -0700, Brad Fuller wrote:
looks like it. Just wanted to pass it along anyway as a FYI
FYI: This was on the dsp-music mailing list:
Hello!
We are a team of audio DSP people trying to squeeze everything out of
the hardware. Assuming that product announcements are allowed on the
Music DSP mailing list, we'd like to draw the attention of its
subscribers to our new fast yet high-quality real-time timestretching
with transient processing and resampling libraries written 100% in
Assembler with highly optimised FPU, 3DNow! and SSE versions,
auto-selected for any x86 CPU. For more information, demo players /
plugin and licensing, visit our web site - http://www.dspteam.com/
Proprietary license, huh?
6702
days inactive
6703
days old
linux-audio-user@lists.linuxaudio.org
6 comments
6 participants
participants (6)
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Brad Fuller -
Lee Revell -
luis jure -
Paul -
Paul Davis -
Thorsten Wilms