Feature Request: Algorithms for pitch shifting/time stretching such as PSOLA or WSOLA about jdsp HOT 7 CLOSED

I think this would be a good addition but we do not have anything on the roadmap. I will add these as new functionalities to be included as the library matures.

Thanks for your support.

from jdsp.

Starting development on an implementation of PSOLA that is due to be released in v1.1.0.

from jdsp.

Any update on release of this feature?

from jdsp.

Development ongoing for various features in speech processing. Release has been moved to v2.0.0 which will be the next release. Timescales will be released soon.

from jdsp.

This is a fairly complex piece of functionality and warrants a different project to develop. I am aiming to provide the components required for PSOLA/WSOLA through JDSP and then separately develop another project for OLA methods.

from jdsp.

This would be a great feature to add.
I would also like to see a "streaming" version, so that it could be incorporated into a real-time audio stream - there are some examples of streaming processors in "Digital Audio Processing" by Craig A Lindley.
A "nice to have" would be the ability to change the parameters while it is streaming i.e. being able to change the tempo factor/pitch factor in real time.

from jdsp.

Hi all. I have done a very rough port of the TDStretch class from SoundTouch into Java. I have not done much in the way of testing yet.
Subjectively it does a good job on stereo MP3 files (using the JLayer library to read in the data). I also used Audacity to convert an MP3 to mono, and that works too. Timestretch factors below 0.4 cause an exception & the results are poor with a timestretch > 2.

I could do a bit of tidying & drop a zip of the code here, if it would help.
As SoundTouch is covered by the LGPL V2.1 (or later), can this translated version be released under the MIT license?

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