NAME

isdnrec − record sound with ISDN/X.25 interface

SYNOPSIS

isdnrec filename [−l|−r|−s] [−t time] [−a] [−c]

DESCRIPTION

isdnrec records sound for time seconds (default 10 seconds) into filename.  If the −a option is specified, isdnrec appends the sound to filename. 

If no ISDN connection is established, the sound source is microphone/headset.  Otherwise the source can be specified as option; default is −r. 

−l Local, record my own voice (sound) only, like taking a memo during conversation. 

−r Remote, record my partner’s voice during the conversaton. 

−s Silent, recording my partner’s voice.  Like in an answering machine, the partner cannot hear my voice. 

Recording ceases upon ISDN disconnection, except if the −c (continue) option is specified. 

The sound file is compatible with 8kHz mono mode of the Audio Interface.  The PCM-encoding scheme is network dependent; mu-law is common in USA and Japan, while most European public ISDNs use A-law. 

SEE ALSO

isdnplay(1), xsed(1), soundlib(3X)

BUGS

It should be possible to record both parties’ voice simultaneously. 

NEWS-OSRelease 4.2.1R