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       jackrec - JACK toolkit client for recording audio


       jackrec -f filename -d seconds [ -b bitdepth ] port1 [ port2 ... ]


       jackrec  is  a basic, but useful, audio recorder that will record audio
       from 1 or more JACK ports to a file on disk. The file format is  always
       RIFF/WAV,  with samples stored as signed integers. The sample bit depth
       can be selected using the  -b  option.  The  file  will  have  as  many
       channels  as  there  are  ports  specified  on  the command line - each
       channel will contain the data recorded from one port. The  user  should
       generally specify the duration (in seconds) using the -d option. If not
       specified, jackrec will record until terminated by a signal  (eg.  from

       This application is not intended to be a heavy duty audio recorder, and
       originated as an example client to show how  to  handle  threading  and
       disk I/O in a JACK client. However, it is a useful, simple recorder and
       is included in the JACK toolkit as a result.