AUEDIT(1)AUEDIT(1)NAMEauedit - graphically record and edit audio files
SYNOPSISauedit [-audio servername] [-toolkitoption ...] [filename]
DESCRIPTIONauedit provides an X-based window-oriented interface
allowing the user to record and edit audio files. The
editing features available include:
o Cutting, copying, pasting, and mixing within a single
auedit instance or between multiple auedit instances.
o Changing the amplitude of an interval.
o Reversing an interval.
o Fading in or out an interval.
AUEDIT AND THE ATHENA WIDGET SETauedit uses the X Toolkit Intrinsics and the Athena Widget
Set. For more information, see the Athena Widget Set doc
umentation.
SCREEN LAYOUTauedit starts out with a single window divided into sev
eral areas:
o A collection of drop-down menus and command buttons.
o A volume indicator and control slider.
o The audio file represented as a wave form. If the
audio data contains multiple tracks, the tracks will
be displayed in ascending order. For stereo data, the
convention is left track, then right track.
o A set of indicators displaying the interval start,
duration, and end and the current position. These
indicators are in units of minutes, seconds, and hun
dredths of seconds.
o Buttons to play, stop, and pause the audio.
o Two menus indicating the current file and data for
mats.
o Two editable fields containing the current frequency
and the audio file comment.
INTERVALS
Many functions in auedit operate on a range of audio data
called an interval. The initial interval encompasses all
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of the audio data. The interval is indicated within the
wave form by two solid, vertical lines. The left marker
indicates the start of the interval. The right marker
indicates the end of the interval. To select an interval
of audio data, use the mouse to move the interval markers
in the wave form. Pressing a mouse button in the wave
form will select the marker closest to the mouse position.
That marker may then be dragged to the desired location in
the wave form. Note that the markers may not cross over
each other.
PLAYING AN INTERVAL
To play an interval, click on the Play button (the one
with the triangle on its side). The audio data delimited
by the start and end markers will be played. A dashed
vertical line will indicate the approximate position of
the data currently being played. To stop playing, click
on the Stop button (the one containing a solid square).
Clicking on Pause (the button containing two vertical,
parallel lines) will pause the playing. To resume, click
on Pause again. The volume slider controls the play vol
ume. The interval is played at the frequency specified by
the Frequency field. Note that while data is being
played, most other functions are disabled.
THE FILE MENU
New... Initializes auedit with an empty file.
You will be prompted for the number of
tracks for the new file.
Load... Loads a file. You will be prompted
for the file name.
Save Saves the current file. A backup file
will be created by appending a tilde
(~) to the current file name. The
file format, data format, frequency
and comment are used when saving the
file.
Save as... Saves the current file under a new
name. You will be prompted for the
file name. The file format, data for
mat, frequency and comment are used
when saving the file.
Save interval... Saves the interval to a file. You
will be prompted for a file name. The
file format, data format, frequency
and comment are used when saving the
file.
Revert Discards all changes made since the
last save and restores the data to its
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state following the last save.
Exit Exits auedit. If there have been
changes made to the current file that
have not been saved, you will be asked
if you wish to save them.
THE EDIT MENU
The cut, copy, and paste commands in the edit menu trans
fer data to and from a selection buffer. This buffer is
shared between all instances of auedit. This means that
you can cut or copy data from one instance of auedit and
paste it into another instance. The only restriction is
that the audio data in both instances must have the same
number of tracks. When transferring data between
instances of differing frequencies, the data will be con
verted to the frequency of the destination. This can be
used to change the frequency of the data in a single
instance of auedit. First, cut the data whose frequency
you wish to change. Then change the Frequency field to
the desired frequency. Finally, paste the data back in.
The frequency of the data will be converted to the fre
quency specified in the Frequency field.
Cut Moves the interval to the selection
buffer.
Copy Copies the interval to the selection
buffer.
Paste insert Inserts the selection buffer at the
point marked by the start marker.
Paste replace Replaces the data at the point marked
by the start marker with the data from
the selection buffer.
Paste mix Mixes the data at the point marked by
the start marker with the data from
the selection buffer. The mixing
function is an average.
Undo Undoes the last operation that modi
fied the audio data. This includes
effects operations in addition to
editing operations. If the last oper
ation was an Undo then the undo is
undone, restoring the data to the
state prior to the first undo.
THE ZOOM MENU
In Zoom in by a factor of two.
Out Zoom out by a factor of two.
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Markers Zoom in to the interval delimited by
the start and end markers.
Full Zoom out to display all of the audio
data.
THE EFFECTS MENU
All operations under the effects menu apply to the current
interval.
Amplitude... Scale the amplitude. You will be
prompted for the scale. The scale may
be non-integral.
Max Amplitude Scales the interval to its maximum
amplitude without clipping.
Reverse Reverses the order of the data within
the interval.
Fade In Linearly scales the interval using a
scale ranging from 0.0 to 1.0.
Fade Out Linearly scales the interval using a
scale ranging from 1.0 to 0.0.
THE RECORD COMMAND
Clicking on the Record button brings up the record dialog
box. The record dialog box consists of:
o A duration field. This is the maximum duration of the
recording in seconds.
o A frequency field. This is the frequency of the
recording in hertz.
o An input mode toggle button. Clicking this button
toggles between line mode and microphone mode.
o A gain slider. This controls the input gain level.
o A record toggle button. Clicking this button starts
and stops the recording.
o A monitor toggle button. Clicking this button toggles
the record monitoring feature that lets you hear what
you're recording.
o A dismiss command button. Clicking this button stops
any current recording and dismisses the record dialog
box.
OPTIONS
The following options may be used with auedit:
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AUEDIT(1)AUEDIT(1)-audio servername
This option specifies the Network Audio System
server to which auedit should connect.
SEE ALSOnas(1), auconvert(1), X(1)BUGS
There is no way to manipulate individual tracks.
COPYRIGHT
Copyright 1993, 1994 Network Computing Devices, Inc.
AUTHOR
Greg Renda, Network Computing Devices, Inc.
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