30 Jul
2014
30 Jul
'14
2:47 a.m.
Is it possible to slow down an audio file (mp3 for instance) while
keeping the same pitch ? Does it even make sense ? The software would
have to insert more of the same audio 'bits' to make it last longer.
Is it possible ?
Cheers.
30 Jul
30 Jul
2:50 a.m.
Actually a friend of mine is working on an android app that makes
exactly that, and some other effects. So yes, it is possible. But the
bigger the tempo change the more you will notice artifacts.
On 7/30/2014 1:47 AM, jonetsu(a)teksavvy.com wrote:
Is it possible to slow down an audio file (mp3 for
instance) while
keeping the same pitch ? Does it even make sense ? The software would
have to insert more of the same audio 'bits' to make it last longer.
Is it possible ?
Cheers.
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Linux-audio-user(a)lists.linuxaudio.org
http://lists.linuxaudio.org/listinfo/linux-audio-user
2:51 a.m.
On 7/30/2014 1:47 AM, jonetsu(a)teksavvy.com wrote:
Is it possible to slow down an audio file (mp3 for
instance) while
keeping the same pitch ? Does it even make sense ? The software would
have to insert more of the same audio 'bits' to make it last longer.
Is it possible ?
Cheers.
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
http://lists.linuxaudio.org/listinfo/linux-audio-user
And sorry for top posting btw.
3:25 a.m.
On Tuesday, July 29, 2014 08:47:13 PM jonetsu(a)teksavvy.com wrote:
Is it possible to slow down an audio file (mp3 for
instance) while
keeping the same pitch ? Does it even make sense ? The software would
have to insert more of the same audio 'bits' to make it last longer.
Is it possible ?
http://rubberbandaudio.com/
3:35 a.m.
Is it possible to slow down an audio file (mp3 for
instance) while
keeping the same pitch ? Does it even make sense ? The software would
have to insert more of the same audio 'bits' to make it last longer.
Is it possible ?
Try paulstretch, the utility from paul nasca, creator of zynaddsubfx. Great flexible app.
Good luck!
3:45 a.m.
On Tue, 29 Jul 2014, jonetsu(a)teksavvy.com wrote:
Is it possible to slow down an audio file (mp3 for
instance) while
keeping the same pitch ? Does it even make sense ? The software would
have to insert more of the same audio 'bits' to make it last longer.
Is it possible ?
Same stuff as auto talent. Once upon a time changing the length of an
audio segment was done with tape... and rotating heads.
This is the only link I could find:
http://valhalladsp.wordpress.com/2010/05/04/pitch-shifters-pre-digital/
I know it says pitch shift, but it should be obvious that changing the
pitch first and then slowing or speeding the tape till the pitch is
correct would change the length of the audio track as well. I was told
these were used to make commercials the right length, but have never
witnessed their use.
--
Len Ovens
www.ovenwerks.net
4:18 a.m.
On Tue, Jul 29, 2014 at 08:47:13PM -0400, jonetsu(a)teksavvy.com wrote:
Is it possible to slow down an audio file (mp3 for
instance) while
keeping the same pitch ? Does it even make sense ? The software would
have to insert more of the same audio 'bits' to make it last longer.
Is it possible ?
Cheers.
_______________________________________________
You can use WSOLA based time-scaling (Soundtouch) [1] or Phase Vocoder
(Rubberband) [2] to do that. If you only need to play slowed down audio
mplayer/mpv has 'scaletempo' parameter (from reading the manual it seems to be
WSOLA-based). Gstreamer also has a soundtouch plugin in gst-plugins-bad.
[1] http://www.surina.net/soundtouch
[2] http://www.breakfastquay.com/rubberband
4:16 p.m.
On Tue Jul 29 2014, jonetsu(a)teksavvy.com wrote:
Is it possible to slow down an audio file (mp3 for
instance) while
keeping the same pitch ?
This is my favorite application for slowing down audio:
http://www.teuton.org/~gabriel/stretchplayer/
Grab the latest git if you want it to handle MP3 files:
https://gitorious.org/stretchplayer
HTH,
-Sean
9:04 p.m.
On Wed, Jul 30, 2014 at 9:16 AM, Sean Bolton <sean(a)smbolton.com> wrote:
On Tue Jul 29 2014, jonetsu(a)teksavvy.com wrote:
Ardour
Audacity
Mixxx
VLC Media Player
Some of these won't do it directly on an MP3 but will happily do it on a
copy in another format.
--
DJ Dual Core's Blog
http://oldmixtapes.blogspot.com/
Order without government; Peace without violence.
Is it possible to slow down an audio file (mp3
for instance) while
keeping the same pitch ?
This is my favorite application for slowing down audio:
http://www.teuton.org/~gabriel/stretchplayer/
Grab the latest git if you want it to handle MP3 files:
https://gitorious.org/stretchplayer
HTH,
-Sean
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2 Aug
2 Aug
4:26 p.m.
On Wed, 30 Jul 2014 14:04:42 -0500,
Neil <djdualcore(a)gmail.com> wrote :
Ardour
Audacity
Mixxx
VLC Media Player
Some of these won't do it directly on an MP3 but
will happily do it
on a copy in another format.
Ardour can play constant pitch slowed-down audio ?
4:43 p.m.
New subject: [Bulk] Re: Slowing down audio while keeping same pitch ?
On Sat, 2014-08-02 at 10:26 -0400, jonetsu(a)teksavvy.com wrote:
Ardour can play constant pitch slowed-down audio ?
[rocketmouse@archlinux ~]$ pacman -Qi ardour qtractor | grep Depends
Depends On : [snip] soundtouch [snip]
Depends On : [snip] rubberband [snip]
I never used one of it for track resize, but likely ardour, qtractor and
for sure other apps are able to do it, for sure by using much resources
and/or with lots of artifacts. I once tested rubberband independent of
resizing audio tracks, it needed much resources and add much artifacts.
4:56 p.m.
New subject: [Bulk] Re: Slowing down audio while keeping same pitch ?
On Sat, 2014-08-02 at 16:43 +0200, Ralf Mardorf wrote:
I once tested rubberband independent of resizing audio
tracks, it
needed much resources and add much artifacts.
I should explain that. I used rubberband as a plug in pitch shifter.
Track length wasn't resized and I bend the tuning that low, that the
tuning of the drums wasn't important anymore, IOW a few cents detuned
wasn't audible. The problem was less caused by the needed horsepower of
the computer, but more by some artefacts, that were very annoying
click-sounds, high volume spikes.
7 Aug
7 Aug
4:52 a.m.
On Sat, Aug 2, 2014 at 10:26 AM, jonetsu(a)teksavvy.com <jonetsu(a)teksavvy.com>
wrote:
On Wed, 30 Jul 2014 14:04:42 -0500,
Neil <djdualcore(a)gmail.com> wrote :
switch to timefx tool ('t')
stretch region to new length
pitch remains unchanged
Ardour
Audacity
Mixxx
VLC Media Player
Some of these won't do it directly on an MP3
but will happily do it
on a copy in another format.
Ardour can play constant pitch slowed-down audio ?
31 Jul
31 Jul
2:36 a.m.
New subject: [Bulk] Slowing down audio while keeping same pitch ?
On July 29, 2014 08:47:13 PM jonetsu(a)teksavvy.com wrote:
Is it possible to slow down an audio file (mp3 for
instance) while
keeping the same pitch ? Does it even make sense ? The software would
have to insert more of the same audio 'bits' to make it last longer.
Is it possible ?
Cheers.
PlayItSlowly handles mp3 and ogg, I just tried it and it works:
http://29a.ch/playitslowly
Also as mentioned in another reply, StretchPlayer is nice but it
does not do mp3.
Tim.
7 Aug
7 Aug
12:01 a.m.
On 07/30/2014 02:47 AM, jonetsu(a)teksavvy.com wrote:
Is it possible to slow down an audio file (mp3 for
instance) while
keeping the same pitch ?
I have to share a funny story from the beginning of time:
Years ago I was doing electronic music with a friend. We only dreamed
about time-stretching until we finally we able to get the (then new)
akai S1000, that could do time stretching. We never heard the effect but
had fantasized about how we could use it musically for years.
So first thing to do on the akai: Sample a break beat and stretch it.
Tiny display, no idea what parameters meant, so my friend dialed in some
numbers and hit "do it". I honestly think we waited for two hours for
the akai to process the break beat. Ancious to hear the result, hit a
note and it went wwwwhhhhhhhhiiiiizzzsssssssiiiiiiiiiizzzzzzzzzzuuuuu
(insert 30 seconds of insane digital
glitch...)-boom-boom-chack-boom-boom-chack (...followed by one bar of
super cool, normal tempo breakbeat.).
Turned out he asked the akai to stretch the first 100 samples or so by
several thousand percent :-)
--
Atte
http://atte.dk http://modlys.dk
15 Aug
15 Aug
9:45 a.m.
The technical term for this is "time shifting."
You're probably not a Linux user, but Linux has a wonderful command line
utility for doing this called rubberband
Janina
jonetsu(a)teksavvy.com writes:
Is it possible to slow down an audio file (mp3 for
instance) while
keeping the same pitch ? Does it even make sense ? The software would
have to insert more of the same audio 'bits' to make it last longer.
Is it possible ?
Cheers.
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
http://lists.linuxaudio.org/listinfo/linux-audio-user
--
Janina Sajka, Phone: +1.443.300.2200
sip:janina@asterisk.rednote.net
Email: janina(a)rednote.net
Linux Foundation Fellow
Executive Chair, Accessibility Workgroup: http://a11y.org
The World Wide Web Consortium (W3C), Web Accessibility Initiative (WAI)
Chair, Protocols & Formats http://www.w3.org/wai/pf
Indie UI http://www.w3.org/WAI/IndieUI/
10:06 a.m.
New subject: [Bulk] Re: Slowing down audio while keeping same pitch ?
On Fri, 2014-08-15 at 03:45 -0400, Janina Sajka wrote:
The technical term for this is "time
shifting."
"Time stretching is the process of changing the speed or duration of an
audio signal without affecting its pitch. Pitch scaling or pitch
shifting is the opposite: the process of changing the pitch without
affecting the speed." -
https://en.wikipedia.org/wiki/Audio_timescale-pitch_modification
OTOH this short explanation is very vague. A pitch shifter usually
transforms the audio signal by adding a Micky Mouse vocal effect, so for
pitch shifting without this effect, a time stretching software is
needed.
10:06 a.m.
Argh, it's too late, and I should be sleeping ...
The correct technical term is "time scale modification." Here's a
Wikipedia page on the subject:
https://en.wikipedia.org/wiki/Audio_timescale-pitch_modification
Sorry for the mindless comment below.
Janina
Janina Sajka writes:
The technical term for this is "time
shifting."
You're probably not a Linux user, but Linux has a wonderful command line
utility for doing this called rubberband
Janina
jonetsu(a)teksavvy.com writes:
--
Janina Sajka, Phone: +1.443.300.2200
sip:janina@asterisk.rednote.net
Email: janina(a)rednote.net
Linux Foundation Fellow
Executive Chair, Accessibility Workgroup: http://a11y.org
The World Wide Web Consortium (W3C), Web Accessibility Initiative (WAI)
Chair, Protocols & Formats http://www.w3.org/wai/pf
Indie UI http://www.w3.org/WAI/IndieUI/
Is it possible to slow down an audio file (mp3
for instance) while
keeping the same pitch ? Does it even make sense ? The software would
have to insert more of the same audio 'bits' to make it last longer.
Is it possible ?
Cheers.
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
http://lists.linuxaudio.org/listinfo/linux-audio-user
--
Janina Sajka, Phone: +1.443.300.2200
sip:janina@asterisk.rednote.net
Email: janina(a)rednote.net
Linux Foundation Fellow
Executive Chair, Accessibility Workgroup: http://a11y.org
The World Wide Web Consortium (W3C), Web Accessibility Initiative (WAI)
Chair, Protocols & Formats http://www.w3.org/wai/pf
Indie UI http://www.w3.org/WAI/IndieUI/
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days inactive
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days old
linux-audio-user@lists.linuxaudio.org
17 comments
13 participants
participants (13)
-
Atte -
Fede -
Gabriel Roble -
Janina Sajka -
jonetsu＠teksavvy.com -
Len Ovens -
Neil -
Paul Davis -
Ralf Mardorf -
Reuben Martin -
Sean Bolton -
Shani Pribadi -
Tim E. Real