Provided by: gcdmaster_1.2.5-1_amd64 
NAME
gcdmaster - Graphical front end to cdrdao for composing audio CDs
SYNOPSIS
gcdmaster [toc-file]
DESCRIPTION
gcdmaster allows the creation of toc-files for cdrdao and can control the recording
process. Its main application is the composition of audio CDs from one or more audio
files. It supports PQ-channel editing, entry of meta data like ISRC codes/CD-TEXT and non
destructive cut of the audio data.
If a toc-file is specified it will be read and the referenced audio data will be
displayed. It is also possible to specify a ".cue" file.
The GUI periodically polls all configured CD-ROM and CD-recorder devices (see section
DEVICE CONFIGURE DIALOG) to retrieve their status (ready, busy, no disk). This is done by
sending a TEST UNIT READY command to the devices. Following problems may arise:
o Some devices (e.g. the Philips CDD2600) block the SCSI bus when a TEST UNIT READY
is issued while it logs in a new medium. This will cause a buffer under run for all
currently recording devices that are connected to the same bus.
o The GUI cannot detect if a device is used by another program. It will continue to
poll the device which may disturb the operation of the other program.
The GUI supports recording of the same or different projects on multiple devices in
parallel. However, there are some caveats and your system must meat some prerequisites:
o Under Linux a kernel version >= 2.2.6 should be used. The generic SCSI device of
older kernels does not support parallel access to multiple devices.
o The bandwidths of the disks that contain the source data and the involved busses
must be big enough to serve all recorder devices.
o Some recorder devices may block the SCSI bus when the disk is ejected by the
software after the burning process (e.g. the Plextor PX-R412). For this reason a
warning message will be displayed if the "Eject" button is checked in the "Record"
dialog. Manually ejecting a disk seems not to be a problem.
o ATAPI devices supported by the 'generic-mmc' driver will block the IDE bus while
writing the lead-in and lead-out. Thus parallel writing with such devices connected
to the same IDE channel will not work. There is a way to avoid this blocking with
some ATAPI devices but it is not implemented, yet.
CONCEPTS
The main idea of this GUI is to maintain a continuous stream of audio data that can be
composed of several audio files. It is possible to use only portions of audio files in the
audio stream which is the basic idea for the non destructive cut capability.
For example, if you cut out some samples in the middle of an audio file the result will be
a portion that starts at the beginning of the audio file and ends at the beginning of the
cut region and a second portion that starts at the end of the cut region and reaches until
the end of the audio file. Of course, all of this is hidden by the GUI and you will just
see the result.
Track and index marks are placed relatively to the continuous audio stream. It is not
necessary to have a separate audio file for each track. Track/index marks can be set,
moved and deleted without influencing the audio data stream.
Sample Marker
A sample marker serves as an insertion position for audio data. It is equivalent to the
cursor of a text editor. All functions that insert audio data require a defined marker. At
most one sample marker may be active at any time.
Sample Selection
A sample selection specifies a continuous range of audio samples. At most one sample
selection may be active at any time.
Track Mark
A track mark specifies a point in the audio stream where the track number or the index
number changes. Track marks are written as a pair of two numbers like 5.1 for track 5,
index 1. Track numbers may be in the range 1..99, the valid range for index numbers is
0..99. Index 0 represents the pre-gap of a track where the track relative time counts
backwards down to zero. Index 1 marks the real start of the track. This position is stored
in the central toc of the CD and is used by CD players to directly jump to a track. All
index numbers > 2 may be used to subdivide a track but have no further effect. Some CD
players may jump to such index marks.
Track marks may be selected to show data about a track or to perform operations on the
complete track. At most one track mark may be selected at any time.
Times
The time is usually displayed as m:s:f.x where m represents minutes, s represents seconds
(0..59), f represents frames (0..74, 1/75 second) and x stands for samples (0..587,
1/44100 second).
MAIN WINDOW
The main window consists of a menu bar, a sample display, a marker/selection line, a
button line and a status line.
The title of the main window shows the current toc-file name. A "(*)" behind the name
indicates that changes have not been saved.
Menu Bar
The functions that are accessible via the menu bar are described in section MENU
FUNCTIONS.
Sample Display
The sample display provides a visual representation of the audio stream and the placed
track/index markers.
The samples are displayed as two separate graphs for the left and right channel where the
x-axis represents the time and the y-axis denotes the amplitude (linearly scaled). If a
pixel represents more than 1 sample the maximum and minimum amplitude of all samples that
fall within this pixel is displayed. It is possible to zoom in and out and change the
displayed portion with the scroll bar.
The track/index markers are shown on top of the two graphs. Track marks with index 1 are
represented by filled track symbol. All other track marks use a hollow track symbol. The
track/index number pair is displayed on the right side of a track symbol.
Track marks can be selected or moved by clicking or dragging with the mouse pointer
located over a track symbol. The track/index number pairs are not sensitive.
Marker/Selection Line
This line shows the actual cursor and active marker position and the active sample
selection.
The cursor field is read-only and shows the time value of the actual mouse pointer
position within the audio stream if it is located inside the sample display. During
playback the cursor field shows the time value of currently audible sound.
The marker field shows the time value of the active marker. A time value may be entered
and hitting the return key sets the new marker position if the time value is valid.
The sample selection fields show the active selected sample range. Time values may be
entered and hitting the return key in one of these fields sets the new sample selection if
the time values are valid.
Button Line
The zoom/select radio buttons specify the behavior when dragging with the mouse in the
sample display. If "zoom" is active the sample display will zoom to selected sample range.
If "select" is active the active sample selection will be set to the selected sample
range.
The play button will playback the currently active sample selection via the sound card. If
no sample selection is active the currently displayed sample range will be used. While
playing the current project is set to read-only state and all operations that would modify
the project are disabled.
Status Line
The status line shows more information about the last executed action or an error message
if an action could not be executed.
MENU FUNCTIONS
File->New
Starts a new project. If the current work is not saved a confirmation box will be opened.
File->Open
Opens a file selector box to select a toc-file or a .cue file that should be read. If the
current work is not saved a confirmation box will pop up.
File->Save
Saves current work as a toc-file with the current file name.
File->Save As
Opens a file sector box to select a toc-file to which the current work is saved.
File->Quit
Quits gcdmaster. If the current work is not saved a confirmation box will pop up.
View->Zoom To Selection
Zooms the sample display to the currently active sample selection. If no sample selection
is active nothing will happen.
View->Zoom out
Doubles the range of displayed samples.
View->Fullview
Shows all samples of the audio stream in the sample display.
Edit->Cut
Removes the active selected sample range from the audio stream. The audio file on the disk
will not be touched by this operation. The sample marker will be set so that a following
"Paste" operation will revert the effect of this operation.
If no sample selection is active nothing will happen.
Edit->Paste
Pastes the samples that were previously removed with "Cut" at the current sample marker
position. The sample selection is set to the pasted samples so that a following "Cut"
operation will revert the effect of this operation.
If no sample marker is set nothing will happen.
Edit->Add Track Mark
Adds a track mark with index 1 at the active sample marker position. The position will be
rounded to the next frame boundary. If the previous or the new track would be shorter than
4 seconds no track mask is created.
If no sample marker is active nothing will happen.
Edit->Add Index Mark
Adds a track mark with index > 1 at the active sample marker position. The position will
be rounded to the next frame boundary. Index marks cannot be created in the pre-gap area
of a track.
If no sample marker is active nothing will happen.
Edit->Add Pre-Gap
Adds a track mark with index 0 (pre-gap) at the active sample marker position. Index 0 can
only be added right before a track mark with index 1. If the length of the previous track
would be shorter than 4 seconds after inserting the pre-gap this operation is not
performed.
If no sample marker is active nothing will happen.
Edit->Remove Track Mark
Removes selected track mark with any index. If a track mark with index 1 is removed all
track marks of this track will be removed.
If no track marker is selected nothing will happen.
Tools->Disk Info
Opens the non modal "Disk Info" dialog box. See section DISK INFO DIALOG for more details.
Tools->Track Info
Opens the non modal "Track Info" dialog box. See section TRACK INFO DIALOG for more
details.
Tools->Append Track
Opens a non modal file selector dialog box to select an audio file that will be completely
appended to the audio stream. A track mark with index 1 is added at the beginning of the
appended audio data.
The non modal file selector box is shared for "Tools->Append Track", "Tools->Append File"
and "Tools->Insert File".
Tools->Append File
Opens a non modal file selector dialog box to select an audio file that will be completely
appended to the audio stream.
The non modal file selector box is shared for "Tools->Append Track", "Tools->Append File"
and "Tools->Insert File".
Tools->Insert File
Opens a non modal file selector dialog box to select an audio file that will be completely
inserted in the audio stream at the active marker position. If no sample marker is active
nothing will happen.
The non modal file selector box is shared for "Tools->Append Track", "Tools->Append File"
and "Tools->Insert File".
Tools->Append Silence
Opens a non modal dialog box that can be used to append silence to the audio stream.
The non model dialog box is shared for "Tools->Append Silence" and "Tools->Insert
Silence".
Tools->Insert Silence
Opens a non modal dialog box that can be used to insert silence in the audio stream at the
active marker position. If no sample marker is active nothing will happen.
The non model dialog box is shared for "Tools->Append Silence" and "Tools->Insert
Silence".
Settings->Devices
Opens the non modal "Configure Devices" dialog box. See section DEVICE CONFIGURE DIALOG
for more details.
Actions->Record
Opens the non modal "Record" dialog box. See section RECORD DIALOG for more details.
DISK INFO DIALOG (Tools->Disk Info)
This non modal dialog shows summary information about the whole project and allows editing
of meta data that is valid for the complete disk.
The "Apply" button must be used to make changes permanent. If the summary information
changes before the "Apply" button was hit, e.g. by adding a new track, all changes will be
lost.
The "Cancel" button withdraws all changes and closes the dialog box.
Summary Frame
Shows the total number of tracks, i.e. number of track marks with index 1, and the total
length of the audio stream.
Sub-Channel Frame
Allows entry and editing of data that is written to the sub-channels of a disk. The scope
of this data covers the whole disk.
The "Toc Type" option menu can be used to select the type of the table of contents that
will be written to the disk. Currently, for projects that are solely created with this GUI
only the type "CD-DA" or "CD-ROM-XA" makes sense. If you read a toc-file that contains
data track specifications another type may be displayed.
The "UPC/EAN" edit field sets the catalog number of the disk. Exactly 13 digits must be
entered to set the catalog number. To clear the catalog number the edit field must be
completely cleared.
CD-TEXT Frame
CD-TEXT data can be specified for up to 8 different languages. Each language is reference
by a language number 0..7. The first language should have language number 0. Language
numbers should be used continuously.
The actual language for a language number is specified with the "Language" option menu:
The option "Unknown" is shown for an unknown language code (e.g. if the toc-file was
edited manually). It is not possible to select this option. Option "Undefined" means that
no language was assigned for this language number. It is possible to enter CD-TEXT data
and the entered data will be saved to the toc-file but it will not be recorded to a CD-
R/CD-RW. The remaining options select the desired language. Each language can be assigned
only to one language number.
The remaining CD-TEXT fields contain ASCII data. It is not necessary to use them all but
at least "Title" and "Performer" should be filled.
TRACK INFO DIALOG (Tools->Track Info)
This non modal dialog shows information about a selected track and allows editing of track
specific meta data. If no track mark is selected all fields will be cleared and set
insensitive.
The "Apply" button must be used to make changes permanent. If the track information
changes, e.g. by adding a index mark, or another track mark is selected before the "Apply"
button was hit all changes will be lost.
The "Cancel" button withdraws all changes and closes the dialog box.
Summary Frame
Shows the length of the pre-gap (0 if no pre-gap is defined), the absolute start and end
time, the track length excluding the pre-gap length and the number of index marks > 1.
Sub-Channel Frame
Allows editing of all data that is written to the Q sub-channels of the track:
Copy: Digital copy permitted when selected.
Pre Emphasis:
Audio data of track has pre emphasis when selected.
Two/Four Channel Audio:
Select "Four Channel Audio" if the audio data encodes more than two channels. Of
course, only two real channels will be recorded on a CD-R/CD-RW in any case.
ISRC: Allows one to edit the ISRC code of the track. The first fields holds the country
code; it will only accept capital letters. The second field holds the owner code,
capital letters and digits are allowed. The remaining fields holds the year and a
serial number and will only accept digits. All fields must be filled to set the
ISRC code and all fields must be cleared to remove it.
CD-TEXT Frame
Allows one to enter and edit the CD-TEXT data of each language number for this track. All
fields are optional but at least "Title" and "Performer" should be filled.
DEVICE CONFIGURE DIALOG (Settings->Devices)
This non modal dialog shows the settings of all attached SCSI or ATAPI devices that
identify themselves as CD-ROM or WORM device.
All device settings that differ from the default settings will be permanently stored in
the $HOME/.gnome/GnomeCDMaster configuration file.
The "Apply" button must be used to make all changes permanent. The "Reset" button reverts
all changes since the last apply or the dialog box was opened. The "Cancel" button
withdraws all changes and closes the dialog box.
Devices Frame
The browser shows the SCSI address (bus,id,lun) and the vendor/model string of all
available devices. If devices are not automatically detected it is possible to add devices
manually to the browser (see "Add Device" Frame).
The "Status" column shows the actual device status:
Ready: Device has a disk loaded and is ready for an action.
Busy: Device is active with an unspecified action.
Recording:
Device is recording.
No disk:
Device has no disk loaded.
Not available:
Device cannot be accessed.
The "Rescan" button can be used to start the automatic drive detection process. All
changes will be lost and the newly detected devices take immediate effect without hitting
"Apply".
The "Delete" button removes the selected device. The change takes immediate effect and all
other changes will be lost.
Device Settings Frame
This frame allows one to edit the settings of the currently selected device.
Device Type:
This option menu defines the device type which is used to control which actions can
be performed with this device: CD-ROM: read only device, CD-R: CD-R recorder
device, CD-RW: CD-RW/CD-R recorder device.
Driver:
Option menu to select the driver that is used to access the device. If the device
is known by the internal device database the correct driver is selected
automatically. Otherwise "Undefined" will be shown and a suitable driver must be
selected before any action can be performed with this device.
Driver Options:
Enter special driver options here. The available options are described in the
README (the documentation will be moved to this place soon). If the device is known
by the internal device database the correct option flags are selected
automatically.
Device Node:
This field is only required for operating systems that cannot access a SCSI device
by the bus,id,lun triple. In this case the device node that must be used to access
the device should be entered here.
Add Device Frame
This frame can be used to manually add a device. The bus,id,lun triple of the device and
the vendor/product string must be specified before the "Add" button has an effect. It is
not possible to overwrite an existing device with the same bus,id,lun triple. Use the
"Delete" button of the "Devices" frame first in this case.
RECORD DIALOG (Actions->Record)
This non modal dialog can be used to record the actual project on a CD-R/CD-RW. It is
possible to record the actual project on multiple recorders simultaneously.
The "Start" button will start recording processes on all devices that are selected in the
"Available Recorder Devices" browser. For this purpose the cdrdao executable will be
called and should be available in your PATH. For each selected device a non modal
progress dialog will be opened.
After the recording is started on all selected devices it is possible to load another toc-
file or continue editing the existing project. It is also safely possible to quit the GUI.
The recording will continue in background but you will have no feedback about the
progress.
The "Cancel" button will close the dialog box.
Available Recorder Devices Frame
The browser shows all devices with device type CD-R or CD-RW. Only devices with "Ready"
status are selectable.
Record Options Frame
Simulate/Write:
Selects between simulated or real writing process.
Close Disk:
If selected disk will not be appendable. Otherwise the recorded session is kept
open.
Note: The drivers 'generic-mmc-raw',
'sony-cdu920' and 'yamaha-cdr10x' cannot keep the recorded session open.
Eject: If selected the disk will be ejected after a successful writing process.
Warning: This may cause buffer under runs with certain device combinations if
multiple devices are recording.
Recording Speed:
May be used to set an upper limit for the used recording speed. If a recorder
device does not support the speed the next lower possible speed is used.
Reload:
If selected the disk will be automatically reloaded if it appears to be not empty
or not appendable. This is required after a simulation run for some devices (e.g.
the Philips CDD2x00 recorder familiy).
Warning: This may cause buffer under runs with certain device combinations if
multiple devices are recording.
FILES
cdrdao:
executed for recording
$HOME/.gnome/GnomeCDMaster:
stores settings permanently
AUTHOR
Andreas Mueller mueller@daneb.ping.de
SEE ALSO
cdrdao(1), cdda2wav(1), cdparanoia(1)
Oct 10, 1999 GCDMASTER(1)