http://ccrma.stanford.edu/~kjetil/src/
CHANGES
0.1.1 -> 0.2.0:
  *Automatically disconnect and connect ports while program is running.
   Previously, the
   connections where only set up when the program started.
  *Added make install.
  *Various smaller changes.
On Fri, 25 Nov 2005, Kjetil S. Matheussen wrote:
 http://www.notam02.no/arkiv/src/
 ABOUT
 -----
 jack_capture is a small simple program to capture whatever
 sound is going out to your speakers into a file.
 This is the program I always wanted to have for jack, but no
 one made. So here it is.
 USAGE
 -----
 jack_capture [-f filename] [ -b bitdepth ] [-c channels] [ -B bufsize ]
 Filename is by default auotogenerated to something like
 "jack_capture_<date+exact_time>.wav"
 Bitdepth is by default FLOAT.
 Channels is by default 2.
 Bufsize is by default 262144.
 ACKNOWLEDGMENT
 --------------
 Mostly based on the jackrec program in the jack distribution
 made by Paul Davies and Jack O'Quin. Automatic filename generation
 code taken from the timemachine program by Steve Harries.