Simple VoIP client/server in KISS (Keep It Small Simple) technology.
Requires python >= 2.6, hardware: microphone and sound output
Sound in/out driver to choose:
OSS: using native ossaudiodev python module
RAW: using native unix sound device files, like /dev/dsp
SoX: using SoX's rec & play to maniputate sound data - currently only way to work in Cygwin environment
Upload/Download link usage about 6 kilobytes per second each way, but many modes possible
In low mode even 3-4 kilobytes, in zombie mode even about 1-2 kilobytes
HQ mode needs about 60+ kbytes/sec
Default 8 bit MU-LAW encoding, 8000 Hz, mono but can be changed
Requirements for UNIX-like station:
OSS sound driver (RAW dsp or ossaudiodev which is buildin in python)
Python 2.6 or newer, also 3.X
Optional ut very recomended BZip2 for in-time audio compression
Optional SoX for audio in/out
Optional oggenc/oggdec for OGG in-time compression (experimental)
Optional speex enc/dec to use Speex codec for compression
Requirements on Cygwin station:
Cygwin version of Python (cygwin version mandatory!) 2.6 or never, also 3.X
SoX for audio in/out
Optional ut very recomended BZip2 for in-time audio compression
Optional oggenc/oggdec for OGG in-time compression (experimental)
Optional speex enc/dec to use Speex codec for compression
Predefined modes:
Default: OSS audio, mono, 8bit, MULAW logarithmic encoding, 8000 Hz both ways, BZip2 compression, buffor 1K (>=125ms LAG) 6-9 kb/s
Low: OSS audio, mono, 8bit, U8 unsigned integer encoding, 4096 Hz both w, BZip2 compression, buffer 2K (>= 500ms LAG) 3-4 kb/s
High: OSS audio, mono, 16bit, S16LE unsigned little endian, 22050 Hz, BZip2 compression, buffer 1K (>= 25 ms LAG) 50-80 kb/s
Zombie: OSS audio, mono, 8bit, U8 unsigned integer, 4096 Hz, Ogg encoded at quality -1, BZip2 compression level 9, block 16K (>= 4s LAG, terrible low quality) 0.5-2 kb/s
zspx: OSS audio, mono, 8bit, U8 uint, 6 kHz, Speex encoded at 0 quality (lowest), BZ2 9 compression, block 16K (>= 3s LAG, low quality) 0.3-0.6 kb/s
Too start server you need computer which IP and port 9000 (or other) is visible from outside.
Assume your servercomputer has ip 100.110.120.130
To start serwer you just need:
bash$ ./PyVoice2.py -a
To connect and talk with server from outside
bash$ ./PyVoice2.py -s 100.110.120.130
And thats all.
Logs are in /tmp/PyVoice.log.client /tmp/PyVoice.log.server
To stop You need to kill python's process
To get help
bash$ ./PyVoice2.py -h
More help:
vi PyVoice2.py
Good luck.
I've written it because skype is so heavy and so hard to set up on FreeBSD, and I just need simplest and minimum net consuming program.
I'm going for one year to Polish Polar Station "Hornsund" as a geophysician, and just need a way to talk with my wife.
The goal was to use minimum net traffic, so 8bit MULAW, 8000 Hz, mono and all data sent by network compressed in the fly by BZIP2
