[LAU] paulstretch, python/commandline

[Atte André Jensen]

Hi

The picky program I was playing with in the recent thread was 
paulstretch. I always had trouble running it but I just found that there 
seems to be a commandline python version available. But unfortunately, 
it wasn't that simple. There are three versions available:

https://github.com/paulnasca/paulstretch_python

I was only able to make paulstretch_stereo.py do something, and only on 
mono files in "Microsoft PCM" wav format.

So I made a wrapper in python that is more robust + inputs all the 
formats handled by mplayer and outputs all formats handled by sox, I 
placed it here: http://atte.dk/paulstretch

To use it you need to
1) save http://atte.dk/paulstretch in your path and make it executable
2) get paulstretch_stereo.py:
$ git clone https://github.com/paulnasca/paulstretch_python.git
3) place the files (at least paulstretch_python.py) in your path
4) install numpy, scipy:
sudo pacman -S python2-scipy python2-numpy

If anyone want's to play along, that'd be fun! Any findings regarding 
Pauls python scripts would be great. For instance I convert input to 
mono, but the result is stereo! I imagine keeping the file in stereo 
would result in better sounding results. Also, I tried to be clever and 
check for numpy and scipy in my wrapper, but since Pauls scripts run in 
python2 only, and python here (arch) falls back to python3, I found no 
way (elegant) to check if the python2 versions of numpy and scipy are 
installed from python3...

We could (should?) maybe start patching Pauls scripts at some point, but 
this just to be able to do something usable with it, in the first place...

-- 
Atte

http://atte.dk   http://modlys.dk