Provided by: dbmix_0.9.8-6_i386
dbmixer - Mixer application for the DBMix sound system
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 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).
This manual page was written by Daniel Kobras <firstname.lastname@example.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)