# python
Python 2.4.4 (#1, Apr 10 2007, 20:48:31)
[GCC 4.1.1 20070105 (Red Hat 4.1.1-51)] on linux2

I can get other scripts to work but when I attempt to run the AudioAnalysis Script I get the following error from console.

# ./blender
guessing './blender' == '/opt/blender-2.43-linux-glibc232-py24-i386/./blender'
Compiled with Python version 2.4.
Checking for installed Python… got it!
Traceback (most recent call last):
File "", line 44, in ?
File "/opt/blender-2.43-linux-glibc232-py24-i386/.blender/scripts/IpoPlotter.py", line 1, in ?
import sys, random, string, Blender
File "/usr/lib/python2.4/random.py", line 68, in ?
import _random
ImportError: /usr/lib/python2.4/lib-dynload/_randommodule.so: undefined symbol: _PyArg_NoKeywords

Oddly it doesn't mention the AudioAnalysis script but rather the IpoPlotter.py ??? If I have to compile Blender with gcc-4 can anybody suggest a good site to d/l from and/or any hints I'm still a noob with Linux :D

And finally, when I enter "ldd blender", it spits this out…

linux-gate.so.1 => (0×00e91000)
libjpeg.so.62 => /usr/lib/libjpeg.so.62 (0×4c070000)
libz.so.1 => /usr/lib/libz.so.1 (0×4b5f6000)
libSDL-1.2.so.0 => /usr/lib/libSDL-1.2.so.0 (0×4c888000)
libpthread.so.0 => /lib/libpthread.so.0 (0×4b897000)
libGL.so.1 => /usr/lib/libGL.so.1 (0×419e7000)
libGLU.so.1 => /usr/lib/libGLU.so.1 (0×41a88000)
libX11.so.6 => /usr/lib/libX11.so.6 (0×4b6ac000)
libXi.so.6 => /usr/lib/libXi.so.6 (0×4b9ad000)
libutil.so.1 => /lib/libutil.so.1 (0×4c452000)
libc.so.6 => /lib/libc.so.6 (0×4b494000)
libm.so.6 => /lib/libm.so.6 (0×4b5c9000)
libdl.so.2 => /lib/libdl.so.2 (0×4b5f0000)
libstdc++.so.5 => /usr/lib/libstdc++.so.5 (0×006da000)
libgcc_s.so.1 => /lib/libgcc_s.so.1 (0×4c094000)
libXext.so.6 => /usr/lib/libXext.so.6 (0×4b7ec000)
/lib/ld-linux.so.2 (0×4b477000)
libGLcore.so.1 => /usr/lib/libGLcore.so.1 (0×41000000)
libnvidia-tls.so.1 => /usr/lib/tls/libnvidia-tls.so.1 (0×419e3000)
libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0×4c1f7000)
libXau.so.6 => /usr/lib/libXau.so.6 (0×4b60b000)
libXdmcp.so.6 => /usr/lib/libXdmcp.so.6 (0×4b610000)

I use the last releases of blender.org download page, and think that I'm not
able to recompile Blender yet…I think I can wait for these versions
to accept AudioAnalysis Script. Thank you very much!

If the wave module is not part of your Blender installation, you will probably have to recompile Blender … or find a version of Blender that has it built in. You may have some luck here: http://www.blenderbuilds.com/

I compiled my own version.

The console says:

Traceback (most recent call last):
File "", line 43, in ?
File "C:\Program Files\Blender Foundation\Blender\.blender\scripts\AudioAnalysis.py", line 1, in?
import sys, wave, audioop
ImportError: No module named wave

Let me address some of the comments made.

1. FFT. The main reason I created the tool was to get a reasonably realistic Thunder/Lightning curve. I know there is interest in doing IPO curves based on frequency; I will have to learn how the FFT API works. There is a lot more needed for the tool to be really functional.

2. File Formats. If I'm not mistaken, just about every file format can be converted into an uncompressed, lossless WAV file. It strikes me that a simple solution would be to convert the audio files into WAV format in advance.

3. Creating Music. Not with this tool. ;-) Its purpose is to analyse, not create. Many music creating tools already exist.

4. Error Messages. As another person mentioned, you do need the latest version of Python and Blender. I'm not sure about the types of WAV files that can be analysed; all that I have tried have worked for me. If someone can post a non-working WAV file, I will investigate further.

There are a few features I would like to add to the tool: frequency analysis and isolating frequencies/amplitude using an interactive view of the waveform. Of course, if someone would like to help … :-)

you will need a full python install for it to work.