


BEEPER(SFS1)      MISC. REFERENCE MANUAL PAGES       BEEPER(SFS1)



NAME
     beeper - generate pure-tone beeps to order

SYNOPSIS
     beeper (-f start (stop)) (-a start (stop)) (-n  number)  (-c
     controlfile)  (-o sfsfile) (-r samplerate) (-d duration) (-g
     gap) (-R ramptime) (-l) (-v)

DESCRIPTION
     beeper is a program to generate sequences of pure-tone beeps
     to  order.   Command  line  options  control  the frequency,
     amplitude, number and timing of a sequence  of  beeps.   The
     beep signal may optionally be saved in an SFS file.

OPTIONS
     -I         Identify program name and version number.

     -fstart(stop)
                Specify the first and (optionally) last tone fre-
                quency in Hertz.  Default 1000Hz.

     -astart(stop)
                Specify the  first  and  (optionally)  last  tone
                amplitude  in  dB with respect to a signal with a
                peak amplitude  of  1.   Default  70dB.   Maximum
                90dB.

     -n number  Specify the number of tones to produce.   Default
                1.

     -ccontrolfile
                Specify the frequency and tone of each beep in  a
                control  file.  The file consists of one line per
                beep, with the first number on the line  specify-
                ing  the  frequency  in Hertz, and the second the
                amplitude in dB.

     -osfsfile  Save  the  resulting  signal  into  an  SFS  file
                instead of replaying.  Default is to replay.

     -rsamplerate
                Specify  the  output  sampling   rate.    Default
                20000Hz.

     -dduration Specify the duration of  each  beep  in  seconds.
                Default 0.5 seconds.

     -ggapduration
                Specify the duration of the gap between beeps  in
                seconds.  Default 0.5 seconds.

     -Rramptime Specify the time to ramp  the  amplitude  at  the



Sun Release 4.1         Last change: UCL                        1






BEEPER(SFS1)      MISC. REFERENCE MANUAL PAGES       BEEPER(SFS1)



                ends  of  the  beep  in  seconds.   Default  0.05
                seconds.

     -l         Use logarithmic frequency steps.  Default linear;

     -v         Verbose.  Report details of signal generated.

OUTPUT ITEMS
     SPEECH
          Beep sequence.

HISTORY
     fstart=
          Starting frequency.

     fend=
          Ending frequency.

     astart=
          Starting amplitude.

     aend=
          Ending amplitude.

     file=
          Control filename.

     srate=
          Sampling rate.

     dur= Beep duration.

     gap= Gap duration.

     ramp=
          Ramp duration.

VERSION/AUTHOR
     1.0  Mark Huckvale

SEE ALSO
     steptone

SOURCE
     /ptemp/mark/sfs/contrib/teach/beeper.c










Sun Release 4.1         Last change: UCL                        2



