Provided by: dbmix_0.9.8-6_i386 bug
 

NAME

        dbmixer - Mixer application for the DBMix sound system
 

SYNOPSIS

        dbmixer
 

DESCRIPTION

        dbmixer is an advanced mixer application to control various audio chan‐
        nels.  It is part of the DBMix sound  system  and  requires  a  running
        dbfsd.   The  user  interface  is  devided into four parts: the channel
        boxes, one for each channel, on the top left, the crossfader box below,
        the  sample editor box right of the channel boxes, and the controls box
        to the far right.  Each of them is described in detail below.
        The list box on top assigns each channel to a particular input  device.
        Pause  and  Mute  buttons below are pretty self-descriptive.  Cue redi‐
        rects the channel to the cueing device and is only enabled if dbfsd has
        been  started  with  the -c option.  The buttons labelled Once and Loop
        act in conjunction with the sample editor (see below).   They  play  or
        loop  respectively a short, pre-recorded sample on the current channel.
        To adjust the channel’s volume, move the vertical slider up  and  down.
        (The  number  on top of the slider is a bit misleading--100 means abso‐
        lute silence while it shows 0 when the volume is at  its  maximum.)   A
        horizontal  slider  controls the pitch of the sound output.  The row of
        buttons below resets the speed to 100  per  cent  (middle  button),  or
        alters  the  speed by five per cent in either direction (left and right
        buttons).  The bottom row, finally, comprises of the  Pitch  Sync  but‐
        tons.   While  being  pressed,  they  temporarily slow down (-S), pause
        (.]S[.), or speed up (S+) the sound.  The purpose of these  three  but‐
        tons  is  to  assist  in beat matching:  First use the pitch control to
        adjust two songs to the same speed, the use the sync buttons  to  match
        the beats.
        The  crossfader  comprises of three parts, the fader slider itself, and
        the two channel selectors, one on each side of the  fader.   To  cross‐
        fade,  first  select the channels to fade between in the channel selec‐
        tors.  Then move the fader slider to the desired position, or push  one
        of  the autofade buttons to the right.  < fades to the left, /\ centres
        the fader, and > fades to the right.  A slider labelled  Autofade  Spd.
        controls  the  autofade  speed.  It is actually located in the controls
        box, but belongs to the crossfader, really.  The value of  this  slider
        is the fade time from end to end in seconds.
 
        To  either  side  of the crossfader channel selectors there are buttons
        that say Punch.  Doing so sets the volume for the  selected  crossfader
        channel  to  maximum.   When the button is released, the channel volume
        returns to its previous value.  This is usefull for quickly  overlaying
        soundbytes from one stream over another.
        The  list  box  on top connects the sample recorder to one of the chan‐
        nels.  The Load and Save buttons (re-)store samples on disk.  To record
        a  sample  from  the  selected channel, press the Record button.  Press
        again to stop recording.  Max recording time is ten seconds.  The start
        and  end  sliders  are used to fine tune the start and end times of the
        sample; values on top of the sliders the time offsets in seconds.
 
        One can copy a sample to another channel using the Copy Sample To  but‐
        ton  and  its  associated  list box.  First select the channel from the
        list, then click the button.
        The green light on top turns red whenever samples are  clipped  in  the
        output.   This is most likely to occur during a crossfade.  Next is the
        Mic Talkover button.  It cuts all regular output channels to one  third
        of their volume to allow microphone input to be heard.  See dbin (1) to
        learn how to enable microphone input.  Cue Split places cue  output  in
        the right cup of the headphones, and the master output in the left.
 
        The  Balance  slider controls the volume ratio of left vs. right in the
        master output, while the Main and  Cue  sliders  allow  to  adjust  the
        soundcard  volume  for the master and cue devices, respectively.  Auto‐
        fade Spd. actually belongs to the crossfader and is described above.
        dbmixer refuses to start if the maximum number of clients  are  already
        running.   In  this case, close one of your clients, start dbmixer, and
        then restart your last client.
        dbcat(1), dbin(1), dbfsd(1), dbmix(7).
 

AUTHOR

        This manual page was written by Daniel Kobras <kobras@debian.org>,  for
        the Debian GNU/Linux system (but may be used by others).  It is heavily
        based on DBMix’s README file written by Robert Michael S Dean.
 
                                 August 8, 2002                      DBMIXER(1)