pitch shifters

All your LV2 and LADSPA goodness and more.

Moderators: MattKingUSA, khz

User avatar
funkmuscle
Established Member
Posts: 2804
Joined: Mon Jun 02, 2008 2:30 pm
Has thanked: 130 times
Been thanked: 32 times

pitch shifters

Post by funkmuscle »

Hey, any good pitch shifters plugins available to make a guitar sound like a bass guitar?

I've tried others in the past but the bass sounded muddy and bubbly! This was years ago then I started to use sf2 bass guitar fonts.
Can't afford a bass guitar at the moment and would like to get that real bass/guitar feel of string bends, vibrato, etc.

Thanx! :D
User avatar
raboof
Established Member
Posts: 1855
Joined: Tue Apr 08, 2008 11:58 am
Location: Deventer, NL
Has thanked: 50 times
Been thanked: 74 times
Contact:

Re: pitch shifters

Post by raboof »

Realtime or post-processing?

Rubberband is a good pitchshifting library, not sure what would be the nicest way to use it as an end-user though.
User avatar
funkmuscle
Established Member
Posts: 2804
Joined: Mon Jun 02, 2008 2:30 pm
Has thanked: 130 times
Been thanked: 32 times

Re: pitch shifters

Post by funkmuscle »

raboof wrote:Realtime or post-processing?

Rubberband is a good pitchshifting library, not sure what would be the nicest way to use it as an end-user though.

Realtime or post-processing, either would be fine. Rubberband was a bit confusing for me back then. will try it again.

thanx
diizy
Established Member
Posts: 105
Joined: Tue Feb 04, 2014 2:48 am

Re: pitch shifters

Post by diizy »

There's a LADSPA plugin that utilizes rubberband.

Also, if you don't need realtime, Audacity has a pretty good pitch shifter.
ssj71
Established Member
Posts: 1294
Joined: Tue Sep 25, 2012 6:36 pm
Has thanked: 1 time

Re: pitch shifters

Post by ssj71 »

I've used the rubberband ladspa. It worked pretty well. I had to play a bit with the picking and which pickup etc. to get a realistic bass sound. It came out sounding like an acoustic bass at first. Its definitely not useful for a live thing (40+ms latency), but its very good post processing (no tracking issues or any sort of glitch). I was pretty happy with the result in the end, but since then I've gotten a real bass guitar and redid the tracks I had tried it on.
_ssj71

music: https://soundcloud.com/ssj71
My plugins are Infamous! http://ssj71.github.io/infamousPlugins
I just want to get back to making music!
bazsound
Established Member
Posts: 480
Joined: Sat Aug 03, 2013 11:46 am

Re: pitch shifters

Post by bazsound »

I tried rubber band. it worked pretty well. Just tested it on an acoustic guitar that is distorted, however latency is not being compensated. Ive got it on a track directly and it puts the guitar out of sync with everything else.
orbitfold
Established Member
Posts: 8
Joined: Fri Mar 28, 2014 9:36 am

Re: pitch shifters

Post by orbitfold »

Well rubberband cannot see in to the future can it?
wolftune
Established Member
Posts: 1350
Joined: Fri Feb 24, 2012 7:40 pm
Location: Portland, OR
Been thanked: 2 times
Contact:

Re: pitch shifters

Post by wolftune »

orbitfold wrote:Well rubberband cannot see in to the future can it?
Why not? That's how plugin latency compensation works. Plugins that introduce latency report their latency to the host and the host is supposed to delay everything else by the same amount so that everything stays in sync.
Aaron Wolf
Music teacher, scholar
http://wolftune.com
orbitfold
Established Member
Posts: 8
Joined: Fri Mar 28, 2014 9:36 am

Re: pitch shifters

Post by orbitfold »

Yes but it is up to the host and not to the plugin to compensate.
bazsound
Established Member
Posts: 480
Joined: Sat Aug 03, 2013 11:46 am

Re: pitch shifters

Post by bazsound »

Other plugins i use seem to be work fine. I dont know where the bug might be. I cant see it being ardour since other plugins seem to run fine. there maybe a bug in the plugin and its not reporting latency in the right place. But it does say in the plugin that latency is 40ms. changing the latancy doesnt seem to do anything.

Its a strange one.

i'll ask on the ardour forums incase it is an ardour bug,

Its not like i have a ton of tracks with lots of plugins. Literally have 2 acouistic tracks and a midi drum track
User avatar
bluebell
Established Member
Posts: 1924
Joined: Sat Sep 15, 2012 11:44 am
Location: Saarland, Germany
Has thanked: 112 times
Been thanked: 119 times

Re: pitch shifters

Post by bluebell »

There is a LADSPA plugin that's called "Artificial latency". It reports some latency but doesn't produce it. This could help if your rubberband plugin doesn't report its latency correctly.

Linux – MOTU UltraLite AVB – Qtractor – http://suedwestlicht.saar.de/

ssj71
Established Member
Posts: 1294
Joined: Tue Sep 25, 2012 6:36 pm
Has thanked: 1 time

Re: pitch shifters

Post by ssj71 »

If you are trying to soft monitor, meaning hear the effect applied as you are playing, latency compensation doesn't apply. If you are playing back recorded material and applying the effect, it should compensate, if not, either the plugin isn't reporting correctly, or ardour is doing something weird. When I did it in ardour3 it was being compensated for perfectly on playback. While tracking I did not soft monitor (I tried it at first and yes, 40ms latency is unplayable).
_ssj71

music: https://soundcloud.com/ssj71
My plugins are Infamous! http://ssj71.github.io/infamousPlugins
I just want to get back to making music!
bazsound
Established Member
Posts: 480
Joined: Sat Aug 03, 2013 11:46 am

Re: pitch shifters

Post by bazsound »

ssj71 wrote:If you are trying to soft monitor, meaning hear the effect applied as you are playing, latency compensation doesn't apply. If you are playing back recorded material and applying the effect, it should compensate, if not, either the plugin isn't reporting correctly, or ardour is doing something weird. When I did it in ardour3 it was being compensated for perfectly on playback. While tracking I did not soft monitor (I tried it at first and yes, 40ms latency is unplayable).
Im using the latest ardour 3. Ill need to test other plugins that have large processing latencys just incase its a bug that has surfaced. its the only plugin i have used that i have noticed latancy issues on tracks playing back recorded material. all calf plugins, eq10q etc have been fine. tubewarmth, saturation and distortion plugins all fine.

Infact i think i even managed to use guitarix with a pitch shifter plugin and an eq live without latency issues.
tramp
Established Member
Posts: 2347
Joined: Mon Jul 01, 2013 8:13 am
Has thanked: 9 times
Been thanked: 466 times

Re: pitch shifters

Post by tramp »

bazsound wrote:Infact i think i even managed to use guitarix with a pitch shifter plugin and an eq live without latency issues.
When you add a wet/dry control to the pitch shifter (you can do that for LADSPA plugs with Show Details -> use dry/wet box) and mix the clean and processed signal, you will notice the latency the pitch shifter introduce.
The only pitch shifter I've found witch works in realtime is the smbPitchShifter by Stephan M. Bernsee.
http://www.dspdimension.com/admin/pitch ... ng-the-ft/

With some small optimization and ported to use fftw3 it work in rt (5.33ms latency), but still use ~50%DSP load.
On the road again.
bazsound
Established Member
Posts: 480
Joined: Sat Aug 03, 2013 11:46 am

Re: pitch shifters

Post by bazsound »

tramp wrote:
bazsound wrote:Infact i think i even managed to use guitarix with a pitch shifter plugin and an eq live without latency issues.
When you add a wet/dry control to the pitch shifter (you can do that for LADSPA plugs with Show Details -> use dry/wet box) and mix the clean and processed signal, you will notice the latency the pitch shifter introduce.
The only pitch shifter I've found witch works in realtime is the smbPitchShifter by Stephan M. Bernsee.
http://www.dspdimension.com/admin/pitch ... ng-the-ft/

With some small optimization and ported to use fftw3 it work in rt (5.33ms latency), but still use ~50%DSP load.
Sorry your right it was the distortion i managed to use live without too much latency issues. Not the pitch shifter.

For the project that i detuned a guitar to sound like a bass i used the PVscale Pitch shifter in combination with calf eq, calf bass enhancer and also hard limiter.

https://soundcloud.com/bazsound/super-c ... stic-cover

you can hear it with the above link as an example . the PV Scale pitch shifter (cabbage plugin) actually seems pretty good. And it seems that latency compensation is working with that one.

It worked for that track, but im not sure how flexible it would be. I have a feeling that your pretty much limited to that type of bass tone.
Post Reply