Windows PowerShell command on Get-command cdda2wav

Manual Pages for UNIX Operating System command usage for man cdda2wav

User Commands CDDA2WAV(1)

NAME

cdda2wav - dumps CD audio data into sound files with extra

data verification

SYNOPSIS

cdda2wav [ options ][ dev=device ] [file(s) or directories]

DESCRIPTION

cdda2wav can retrieve audio tracks from CDROM drives that

are capable of reading audio data digitally to the host via SCSI (CDDA).

As cdda2wav implements strategies to work around typical

defects on audio CDs it reads many disks that cannot be read

by other software. As cdda2wav may be told to use lib-

paranoia (see -paranoia option below) to verify the data

that has been read from the medium, it delivers superior quality even if the medium is dusty, scratched or if other problems occur.

As cdda2wav may be directed to write the audio data to

stdout, it writes all it's informational output to stderr by

default. See out-fd=descriptor option below.

Default settings Cdda2wav defaults to reead the first audio track from the medium and the default verbose level is set to

-vtoc,summary,sectors,titles and cdda2wav by default writes

*.inf files. To extract all audio tracks with quality verification, it is recommended to call:

cdda2wav -vall cddb=0 -paranoia -B

Device naming Most users do not need to care about device naming at all.

If no dev= option was specified, cdda2wav implements auto

target support and automagically finds the drive in case

that exactly one CD-ROM type drive is available in the sys-

tem. In case that more than one CD-ROM type drive exists on

the system, a list of possible device name parameters may be

retrieved with cdda2wav -scanbus or from the target example

from the output of cdda2wav dev=help, then the dev= parame-

ter may be set based on the device listing. The device parameter to the dev= option explained below

refers to scsibus/target/lun of the CD/DVD/BluRay-Recorder.

If a file /etc/default/cdrecord exists, the parameter to the dev= option may also be a drive name label in said file (see FILES section). SunOS 5.10 Last change: Version 3.0 1 User Commands CDDA2WAV(1) OPTIONS Informative options

-h

-help

display version information for cdda2wav on standard

output.

-version

display version and Copyright information. Audio options

-a divider

-divider divider

sets rate to 44100Hz / divider. Possible values are

listed with the -R option.

The default divider value is 1.

-B

-bulk

-alltracks

copies each track into a separate file. The default is not to extract all tracks.

-b bits

-bits-per-sample bits

sets bits per sample per channel: 8, 12 or 16. The default is 16 bits per sample.

-c channels

-channels channels

use: 1 for mono recording 2 for stereo recording s for stereo recording with both channels swapped The default is to do stereo recording.

-C endianess

-cdrom-endianess endianess

SunOS 5.10 Last change: Version 3.0 2 User Commands CDDA2WAV(1) sets endianess of the input samples to 'little', 'big', 'machine' or 'guess' to override defaults. The value 'machine' or 'host' is evaluated as the actual byte order of the host CPU in the current OS. The default is to detect cdrom endianess automatically.

-cuefile

Create a CDRWIN compatible CUE file. A CUE file that completely follows the CDRWIN documentation can only be used to create 1:1 copies if there is a single file with audio data for the whole disk. The *.inf file format implements more audio CD features than the CDRWIN CUE format and it allows to create 1:1 copies if there is one audio data file per track. Use the CUE file format for meta data only if you really need this format.

To allow cdda2wav to create CUE files, you must also

specify -t all to switch cdda2wav into a mode that

creates a single audio data file for the whole CD.

-T

-deemphasize

undo the effect of pre-emphasis in the input samples.

The default is to keep the audio data in the same state

as on the medium and to mark the pre-emphasis state in

the *.inf files.

-L cddb mode

-cddb cddb mode

does a cddbp album- and track title lookup based on the

cddb id. The parameter cddb mode defines how multiple entries shall be handled.

_______________________________________________________________________

| Parameter| Description |

|__________|___________________________________________________________|

| -1| disable cddb queries. This is the default. |

| 0| interactive mode. The user selects the entry to use. | | 1| first fit mode. The first entry is taken unconditionally.|

|__________|___________________________________________________________|

cddbp-server=servername

sets the server to be contacted for title lookups.

cddbp-port=portnumber

sets the port number to be used for title lookups.

-d duration

SunOS 5.10 Last change: Version 3.0 3 User Commands CDDA2WAV(1)

-duration duration

sets recording time in seconds or frames. Frames (sec-

tors) are indicated by a 'f' suffix (like 75f for 75 sectors). 0 sets the time for whole track. The default is to extract the whole track.

-E endianess

-output-endianess endianess

sets endianess of the output samples to 'little', 'big' or 'machine' to override the default which is 'network byte order' (big endian). The value 'machine' or 'host' is evaluated as the actual byte order of the host CPU in the current OS.

-F

-find-extremes

finds extreme amplitudes in samples.

-G

-find-mono

finds if input samples are in mono.

-g

-gui formats the output to be better parsable by gui fron-

tends.

-H

-no-infofile

does not write an info file, a cddb file and no cdtext file.

-i index

-index index

selects the start index.

-J

-info-only

does not write to a file, it just gives information about the disc.

-M

-md5 enables calculation of MD-5 checksum for all audio

bytes from the beginning of a track. The audio header SunOS 5.10 Last change: Version 3.0 4 User Commands CDDA2WAV(1)

is skipped when calculating the MD-5 checksum to allow

to compare MD-5 sums even for files with different

header type.

-m

-mono

sets to mono recording.

-no-hidden-track

Ignore hidden tracks on the CD. By default, cdda2wav

checks whether there might be a hidden track before track 1. This check may take a few seconds and thus

can be disabled with -no-hidden-track.

-N

-no-write

does not write to a file, it just reads (e.g. for debugging purposes). If this option is used together

with the -e option, the CD is read and the audio con-

tent is played back to the sound device without creat-

ing output files with audio data.

-no-textdefaults

By default, cdda2wav replaces empty CD-Text fields from

tracks by the related CD-Text fiel for the whole CD in

case this is defined. If the option -no-textdefaults is

used, cdda2wav leaves the track related CD-Text fields

empty in such a case.

-no-textfile

If cdda2wav encounters useful CD-Text information on

the CD, it writes a .cdtext file. The option

-no-textfile allows to suppress the creation of the

.cdtext file.

-o offset

-offset offset

starts offset sectors behind start track (one sector equivalents 1/75 seconds).

-O audiotype

-output-format audiotype

can be wav (for wav files) or aiff (for apple/sgi aiff files) or aifc (for apple/sgi aifc files) or au or sun (for sun .au PCM files) or cdr or raw (for headerless files to be used for cd writers). The default output format is now wav for all platforms SunOS 5.10 Last change: Version 3.0 5 User Commands CDDA2WAV(1) as this file format has become the most common format.

Note that former versions of cdda2wav made an exception

and by default did create au type files on Solaris.

-p percentage

-playback-realtime percentage

changes pitch of audio data copied to sound device.

-P sectors

-set-overlap sectors

sets the initial number of overlap sectors for jitter

correction in non-paranoia mode. Note that overlapped

reads re handled differently in paranoia mode.

The default overlap in non-paranoia mode is 1.

-paranoia

use the paranoia library as a filter on top of

cdda2wav's routines for reading. In paranoia mode, the

latency time for the -interactive mode is increased to

typically 5..10 seconds. This is caused by the fact that the paranoia code reads anything at least twice and in between needs to take care of emptying the cache

RAM of the CD-ROM drive.

If the paranoia mode is used, cdda2wav displays some

quality statistics for each extracted track. The fol-

lowing items appear in the list:

___________________________________________________________________

| Value| Description |

|________|_________________________________________________________|

|________|_________________________________________________________|

SunOS 5.10 Last change: Version 3.0 6 User Commands CDDA2WAV(1)

-paraopts=list

List is a comma separated list of suboptions passed to the paranoia library.

_______________________________________________________________________________

| Option| Description |

|______________|______________________________________________________________|

| no-verify| switches verify off, and static overlap on |

| proof| set maxoverlap=sectors-per-request-1,retries=200 |

|______________|______________________________________________________________|

-q

-quiet

quiet operation, no screen output.

-r rate

-rate rate

sets rate in samples per second. Possible values are

listed with the -R option.

-R

-dump-rates

shows a list of all sample rates and their dividers.

-S speed

-speed speed

sets the cdrom device to one of the selectable speeds for reading. For maximum extraction quality, it is recommended to use speed values of 8 or below. The default is to extract at maximum speed.

-s

-stereo

sets to stereo recording.

-start-sector sector

set an absolute start sector. This option is mutually

exclusive to -track and -offset.

SunOS 5.10 Last change: Version 3.0 7 User Commands CDDA2WAV(1)

-t track[+endtrack]

-track track[+endtrack]

-track track+max

-track all

selects the start track and optionally the end track.

If -t all is used, all audio tracks are selected. If

-t 2+max is used, all audio tracks starting with track

2 are selected.

-v itemlist

-verbose-level itemlist

Retrieves and prints verbose information about the CD. Level is a list of comma separated suboptions. Each suboption controls the type of information to be reported. SunOS 5.10 Last change: Version 3.0 8 User Commands CDDA2WAV(1)

_______________________________________________________________________________

| Suboption| Description |

|____________|________________________________________________________________|

|audio-tracks| list the audio tracks and their start sectors |

|____________|________________________________________________________________|

The default value for the verbose-level is

toc,summary,sectors,titles .

-w

-wait

waits for signal, then start recording.

-x

-max sets maximum (CD) quality.

SCSI options dev=device

-D device

-device device

uses device as the source for CDDA reading. For exam-

ple /dev/cdrom for the cooked_ioctl interface and

Bus,ID,Lun for the generic_scsi interface. The device

has to correspond with the interface setting if given

(see -I and -interface option below).

If no -I or -interface option has been specified, the

interface setting is derived from the device name syn-

tax. A device name that is in the form Bus,ID,Lun or

contains a colon (':') defaults to the generic_scsi

interface.

Using the cooked_ioctl is not recommended as this makes

cdda2wav mainly depend on the audio extraction quality

of the operating system which is usually extremely bad. SunOS 5.10 Last change: Version 3.0 9 User Commands CDDA2WAV(1) For this reason, avoid using parameters like dev=/dev/cdrom for the device.

The setting of the environment variable CDDA_DEVICE is

overridden by this option. If no dev= option is present, or if the dev= option only contains a transport specifyer but no address,

cdda2wav tries to scan the SCSI address space for CD-

ROM drives. If exactly one is found, this is used by default. For more information, see the description of the dev= option from cdrecord(1).

debug=#

debug-scsi=#

Set the debug level for the libscg SCSI OS abstraction layer.

kdebug=#

kdebug-scsi=#

kd=# Set the kernel debug level for the kernel driver called

by the libscg SCSI OS abstraction layer. This option is not supported on all platforms.

-scanbus

Scan all SCSI devices on all SCSI busses and print the inquiry strings. This option may be used to find SCSI

address of the CD/DVD-Recorder on a system. The

numbers printed out as labels are computed by: bus * 100 + target

ts=# Set the maximum transfer size for a single SCSI command

to #. The syntax for the ts= option is the same as for

cdrecord fs=# or sdd bs=#.

If no ts= option has been specified, cdda2wav defaults

to a transfer size of 3 MB. If libscg gets lower values from the operating system, the value is reduced to the

maximum value that is possible with the current operat-

ing system. Sometimes, it may help to further reduce the transfer size or to enhance it, but note that it

may take a long time to find a better value by experi-

menting with the ts= option.

Some operating systems return wrong values for the max-

imum transfer size. If the transfer totally hangs or resets occur, it may be appropriate to reduce the SunOS 5.10 Last change: Version 3.0 10 User Commands CDDA2WAV(1) transfer size to less than 64 kB or even less than 32 kB.

-V

-verbose-scsi

enable SCSI command logging to the console. This is mainly used for debugging.

-Q

-silent-scsi

suppress SCSI command error reports to the console. This is mainly used for guis. OS Interface options

-A auxdevice

-auxdevice auxdevice

uses auxdevice as CDROM drive to allow to send the CDROMMULTISESSION ioctl on Linux although the

generic_scsi interface is in use.

-I interface

-interface interface

specifies the interface to use for accessing the CDROM:

generic_scsi

for sending SCSI commands directly to the drive.

cooked_ioctl

for using the programming interface supplied by the OS kernel. The latter is not recommended as it gives lower quality and only works on a limited number of platforms. SunOS 5.10 Last change: Version 3.0 11 User Commands CDDA2WAV(1)

-interactive

Go into interactive mode that reads commands from stdin and writes the textual replies to stderr, or the file

descriptor that has been specified by the out-fd

option. This mode has been introduced mainly to allow cdrecord to be called by gstreamer plugins.

If cdda2wav was called with the option -interactive, it

reads the TOC from the medium and then waits for com-

mand input as if it has been issued a stop command. If

the next command is a cont command, then cdda2wav

extracts the whole audio part of the medium. If the

next command is a read command, then cdda2wav starts

extracting from the position that was indicated by the read command parameter.

____________________________________________________________________________

|Command| Parameters | Description |

|_______|_______________________|__________________________________________|

|_______|_______________________|__________________________________________|

out-fd=descriptor

Redirect informational output to the file descriptor

named by descriptor. The parameter descriptor speci-

fies a UNIX file descriptor number. By default,

cdda2wav sends informational output to stderr.

Redirecting the informational output to a different file descriptor helps gui's and other programs that

call cdda2wav via pipes.

audio-fd=descriptor

In case that the file name for the audio data file is

"-", redirect audio output to the file descriptor named

by descriptor. The parameter descriptor specifies a

UNIX file descriptor number. By default, cdda2wav

sends audio data to stdout if the output is not directed into a file. Redirecting the audio output to

a different file descriptor helps gui's and other pro-

grams that call cdda2wav via pipes.

-no-fork

Do not fork for extended buffering. If -no-fork is used

and cdda2wav is used to play back audio CDs in paranoia

mode, the playback is not always uninterrupted due to lack of buffering. On the other side, allowing

cdda2wav to fork will increase the latency time for the

SunOS 5.10 Last change: Version 3.0 12 User Commands CDDA2WAV(1)

-interactive mode.

-e

-echo

copies audio data to sound device from the operating system e.g. /dev/dsp.

sound-device=sounddevice

set an alternate sound device to use for -e.

-n sectors

-sectors-per-request sectors

reads sectors per request.

-l buffers

-buffers-in-ring buffers

uses a ring buffer with buffers total. ENVIRONMENT VARIABLES

Some defaults for cdda2wav are compiled in and depend on the

Makefile others on the environment variable settings.

CDDA_DEVICE

is used to set the device name. The device naming is compatible with cdrecord(1).

CDDBP_SERVER

is used for cddbp title lookups when supplied.

CDDBP_PORT

is used for cddbp title lookups when supplied. RSH If the RSH environment variable is present, the remote

connection will not be created via rcmd(3) but by cal-

ling the program pointed to by RSH. Use e.g. RSH=/usr/bin/ssh to create a secure shell connection.

Note that this forces cdda2wav to create a pipe to the

rsh(1) program and disallows cdda2wav to directly

access the network socket to the remote server. This makes it impossible to set up performance parameters

and slows down the connection compared to a root ini-

tiated rcmd(3) connection. RSCSI If the RSCSI environment variable is present, the remote SCSI server will not be the program /opt/schily/sbin/rscsi but the program pointed to by SunOS 5.10 Last change: Version 3.0 13 User Commands CDDA2WAV(1) RSCSI. Note that the remote SCSI server program name will be ignored if you log in using an account that has been created with a remote SCSI server program as login shell. EXIT STATUS

cdda2wav uses the following exit codes to indicate various

degress of success:

_______________________________________________________________________________

|Exitcode| Description |

|________|____________________________________________________________________|

| 0| no errors encountered, successful operation. |

| 1| usage or syntax error. cdda2wav got inconsistent arguments. |

| 2| permission (un)set errors. permission changes failed. | | 3| read errors on the cdrom/burner device encountered. | | 4| write errors while writing one of the output files encountered. | | 5| errors with soundcard handling (initialization/write). | | 6| errors with stat() system call on the read device (cooked ioctl). | | 7| pipe communication errors encountered (in forked mode). | | 8| signal handler installation errors encountered. | | 9| allocation of shared memory failed (in forked mode). | | 10| dynamic heap memory allocation failed. | | 11| errors on the audio cd medium encountered. | | 12| device open error in ioctl handling detected. | | 13| race condition in ioctl interface handling detected. | | 14| error in ioctl() operation encountered. | | 15| internal error encountered. Please report back!!! | | 16| error in semaphore operation encountered (install / request). | | 17| could not get the scsi transfer buffer. | | 18| could not create pipes for process communication (in forked mode).|

|________|____________________________________________________________________|

DISCUSSION

cdda2wav is able to read parts of an audio CD or multimedia

CDROM (containing audio parts) directly digitally. These

parts can be written to a file, a pipe, or to a sound dev-

ice.

cdda2wav stands for CDDA to WAV (where CDDA stands for com-

pact disc digital audio and WAV is a sound sample format introduced by MS Windows). It allows copying CDDA audio

data from the CDROM drive into a file in WAV or other for-

mats.

Some versions of cdda2wav may try to get higher real-time

scheduling priorities to ensure smooth (uninterrupted) operation. These priorities are available for super users and are higher than those of 'normal' processes. Thus delays are minimized. If you only have one CDROM and it is loaded with an audio

CD, you may simply invoke cdda2wav and it will create the

SunOS 5.10 Last change: Version 3.0 14 User Commands CDDA2WAV(1) sound file audio.wav recording the whole track beginning with track 1 in stereo at 16 bit at 44100 Hz sample rate, if your file system has enough space free. Otherwise recording time will be limited. For details see files README and README.INSTALL.

If you have more then one CD-ROM type drive in the system,

you need to specify the dev= option. HINTS ON OPTIONS Most of the options are used to control the format of the WAV file. In the following text most of them are discussed in a more verbose way. Select Device dev=device selects the CDROM drive device to be used. The specifier given should correspond to the selected interface

(see below). For the cooked_ioctl interface this is the

cdrom device descriptor. The SCSI devices used with the generic SCSI interface however are addressed with their

SCSI-Bus, SCSI-Id, and SCSI-Lun instead of the generic SCSI

device descriptor. One example for a SCSI CDROM drive on bus 0 with SCSI ID 3 and lun 0 is dev=0,3,0. Select Auxiliary device

-A auxdevice may be needed in some rare cases for CD-Extra

handling. Cdda2wav usually has no problem to get the

multi-session information for CD-Extra using raw SCSI com-

mands. For Non-SCSI-CDROM drives this is the same device as

given by dev= (see above). For SCSI-CDROM drives it is the

CDROM drive (SCSI) device (i.e. /dev/sr0 ) corresponding to the SCSI device (i.e. 0,3,0 ). It has to match the device used for sampling. Select Interface

-I interface selects the CDROM drive communication method.

This interface method is typically automatically selected

from the device name. For SCSI drives generic_scsi is used

(cooked_ioctl may not be available for all devices). Valid

names are generic_scsi and cooked_ioctl. The first uses the

generic SCSI interface, the latter uses the ioctl of the CDROM driver. The latter variant works only when the kernel driver supports CDDA reading. This entry has to match the selected CDROM device (see above). Enable echo to soundcard

-e copies audio data to the sound card while recording, so

you hear it nearly simultaneously. The soundcard gets the same data that is recorded. This is time critical, so it

works best with the -q option. To use cdda2wav as a pseudo

CD player without recording in a file you could use SunOS 5.10 Last change: Version 3.0 15 User Commands CDDA2WAV(1)

cdda2wav -q -e -t2 -d0 -N

to play the whole second track or

cdda2wav -q -e -B -N

to play the whole disk. This feature reduces the recording speed to at most onefold speed. Change pitch of echoed audio

-p percentage changes the pitch of all audio echoed to a

sound card. Only the copy to the soundcard is affected, the recorded audio samples in a file remain the same. Normal

pitch, which is the default, is given by 100%. Lower per-

centages correspond to lower pitches, i.e. -p 50 transposes

the audio output one octave lower. See also the script pitchplay as an example. This option was contributed by Raul Sobon. Select mono or stereo recording

-m or -c 1 selects mono recording (both stereo channels are

mixed), -s or -c 2 or -c s selects stereo recording. Parame-

ter s will swap both sound channels. Select maximum quality

-x will set stereo, 16 bits per sample at 44.1 KHz (full CD

quality). Note that other format options given later can change this setting. Select sample quality

-b 8 specifies 8 bit (1 Byte) for each sample in each chan-

nel; -b 12 specifies 12 bit (2 Byte) for each sample in each

channel; -b 16 specifies 16 bit (2 Byte) for each sample in

each channel (Ensure that your sample player or sound card

is capable of playing 12-bit or 16-bit samples). Selecting

12 or 16 bits doubles file size. 12-bit samples are aligned

to 16-bit samples, so they waste some disk space.

Select sample rate

-r samplerate selects a sample rate. samplerate can be in a

range between 44100 and 900. Option -R lists all available

rates. Select sample rate divider

-a divider selects a sample rate divider. divider can be

minimally 1 and maximally 50.5 and everything between in

steps of 0.5. Option -R lists all available rates.

To make the sound smoother at lower sampling rates, cdda2wav

sums over n samples (where n is the specific dividend). So for 22050 Hertz output we have to sum over 2 samples, for 900 Hertz we have to sum over 49 samples. This cancels SunOS 5.10 Last change: Version 3.0 16 User Commands CDDA2WAV(1) higher frequencies. Standard sector size of an audio CD (ignoring additional information) is 2352 Bytes. In order to finish summing for an output sample at sector boundaries the rates above have to be chosen. Arbitrary sampling rates in high quality would require some interpolation scheme, which needs much more sophisticated programming. List a table of all sampling rates

-R shows a list of all sample rates and their dividers.

Dividers can range from 1 to 50.5 in steps of 0.5. Select start track and optionally end track

-t n+m selects n as the start track and optionally m as the

last track of a range to be recorded. These tracks must be from the table of contents. This sets the track where

recording begins. Recording can advance through the follow-

ing tracks as well (limited by the optional end track or otherwise depending on recording time). Whether one file or

different files are then created depends on the -B option

(see below). Select start index

-i n selects the index to start recording with. Indices

other than 1 will invoke the index scanner, which will take some time to find the correct start position. An offset may be given additionally (see below). Set recording duration

-d n sets recording time to n seconds or set recording time

for whole track if n is zero. In order to specify the dura-

tion in frames (sectors) also, the argument can have an appended 'f'. Then the numerical argument is to be taken as frames (sectors) rather than seconds. Please note that if track ranges are being used they define the recording time

as well thus overriding any -d option specified times.

Recording time is defined as the time the generated sample will play (at the defined sample rate). Since it's related to the amount of generated samples, it's not the time of the sampling process itself (which can be less or more). It's neither strictly coupled with the time information on the audio CD (shown by your hifi CD player). Differences can

occur by the usage of the -o option (see below). Notice that

recording time will be shortened, unless enough disk space exists. Recording can be aborted at anytime by pressing the break character (signal SIGQUIT). Record all tracks of a complete audio CD in separate files

-B copies each track into a separate file. A base name can

be given. File names have an appended track number and an extension corresponding to the audio format. To record all audio tracks of a CD, use a sufficient high duration (i.e. SunOS 5.10 Last change: Version 3.0 17 User Commands CDDA2WAV(1)

-d99999).

Set start sector offset

-o sectors increments start sector of the track by sectors.

By this option you are able to skip a certain amount at the beginning of a track so you can pick exactly the part you want. Each sector runs for 1/75 seconds, so you have very fine control. If your offset is so high that it would not fit into the current track, a warning message is issued and the offset is ignored. Recording time is not reduced. (To

skip introductory quiet passages automagically, use the -w

option see below.) Wait for signal option

-w Turning on this option will suppress all silent output at

startup, reducing possibly file size. cdda2wav will watch

for any signal in the output signal and switches on writing to file. Find extreme samples

-F Turning on this option will display the most negative and

the most positive sample value found during recording for both channels. This can be useful for readjusting the volume. The values shown are not reset at track boundaries, they cover the complete sampling process. They are taken from the original samples and have the same format (i.e. they are independent of the selected output format). Find if input samples are in mono

-G If this option is given, input samples for both channels

will be compared. At the end of the program the result is

printed. Differences in the channels indicate stereo, other-

wise when both channels are equal it will indicate mono.

Undo the pre-emphasis in the input samples

-T Some older audio CDs are recorded with a modified fre-

quency response called pre-emphasis. This is found mostly in

classical recordings. The correction can be seen in the

flags of the Table Of Contents often. But there are record-

ings, that show this setting only in the subchannels. If this option is given, the index scanner will be started,

which reads the q-subchannel of each track. If pre-emphasis

is indicated in the q-subchannel of a track, but not in the

TOC, pre-emphasis will be assumed to be present, and subse-

quently a reverse filtering is done for this track before the samples are written into the audio file. Set audio format

-O audiotype can be wav (for wav files) or au or sun (for

sun PCM files) or cdr or raw (for headerless files to be used for cd writers). All file samples are coded in linear pulse code modulation (as done in the audio compact disc SunOS 5.10 Last change: Version 3.0 18 User Commands CDDA2WAV(1) format). This holds for all audio formats. Wav files are compatible to Wind*ws sound files, they have lsb,msb byte order which is the opposite byte order to the one used on the audio cd. The default filename extension is '.wav'. Sun type files are not like the older common logarithmically coded .au files, but instead as mentioned above linear PCM is used. The byte order is msb,lsb to be compatible. The default filename extension is '.au'. The AIFF and the newer

variant AIFC from the Apple/SGI world store their samples in bigendian format (msb,lsb). In AIFC no compression is used. Finally the easiest 'format', the cdr aka raw format. It is done per default in msb,lsb byte order to satisfy the order

wanted by most cd writers. Since there is no header informa-

tion in this format, the sample parameters can only be iden-

tified by playing the samples on a soundcard or similar. The default filename extension is '.cdr' or '.raw'. Select cdrom drive reading speed

-S speed allows to switch the cdrom drive to a certain

level of speed in order to reduce read errors. The argument is transferred verbatim to the drive. Details depend very much on the cdrom drives. An argument of 0 for example is often the default speed of the drive, a value of 1 often selects single speed. Enable MD5 checksums

-M count enables calculation of MD-5 checksum for 'count'

bytes from the beginning of a track. This was introduced for quick comparisons of tracks. Use Monty's libparanoia for reading of sectors

-paranoia selects an alternate way of extracting audio sec-

tors. Monty's library is used with the following default options:

PARANOIA_MODE_FULL, but without PARANOIA_MODE_NEVERSKIP

for details see Monty's libparanoia documentation. In this

case the option -P has no effect.

Do linear or overlapping reading of sectors

(This applies unless option -paranoia is used.) -P sectors

sets the given number of sectors for initial overlap sam-

pling for jitter correction. Two cases are to be dis-

tinguished. For nonzero values, some sectors are read twice

to enable cdda2wav's jitter correction. If an argument of

zero is given, no overlap sampling will be used. For

nonzero overlap sectors cdda2wav dynamically adjusts the

setting during sampling (like cdparanoia does). If no match

can be found, cdda2wav retries the read with an increased

overlap. If the amount of jitter is lower than the current

overlapped samples, cdda2wav reduces the overlap setting,

SunOS 5.10 Last change: Version 3.0 19 User Commands CDDA2WAV(1) resulting in a higher reading speed. The argument given has to be lower than the total number of sectors per request

(see option -n below). Cdda2wav will check this setting and

issues a error message otherwise. The case of zero sectors is nice on low load situations or errorfree (perfect) cdrom drives and perfect (not scratched) audio cds. Set the transfer size

-n sectors will set the transfer size to the specified sec-

tors per request. Set number of ring buffer elements

-l buffers will allocate the specified number of ring

buffer elements. Set endianess of input samples

-C endianess will override the default settings of the

input format. Endianess can be set explicitly to "little", "big" or "machine" or to the automatic endianess detection based on voting with "guess". Set endianess of output samples

-E endianess (endianess can be "little", "big" or

"machine") will override the default settings of the output format. Verbose option

-v itemlist prints more information. A list allows selec-

tion of different information items.

help Print a summary of possible members of the dif-

fopts list. ! Invert the meaning of the following string. No comma is needed after the exclamation mark. not Invert the meaning of all members in the diffopts

list i.e. exclude all present options from an ini-

tially complete set compare list. When using csh(1) you might have problems to use ! due to its strange parser. This is why the not alias exists. disable disables verbosity all all information is given toc displays the table of contents summary displays a summary of recording parameters indices invokes the index scanner and displays start SunOS 5.10 Last change: Version 3.0 20 User Commands CDDA2WAV(1) positions of indices catalog retrieves and displays a media catalog number trackid retrieves and displays international standard recording codes sectors displays track start positions in absolute sector notation To combine several requests just list the suboptions separated with commas. The table of contents The display will show the table of contents with number of tracks and total time (displayed in mm:ss.hh format,

mm=minutes, ss=seconds, hh=rounded 1/100 seconds). The fol-

lowing list displays track number and track time for each entry. The summary gives a line per track describing the type of the track. track preemphasis copypermitted tracktype chans The track column holds the track number. preemphasis shows if that track has been given a non linear frequency

response. NOTE: You can undo this effect with the -T

option. copy-permitted indicates if this track is allowed

to copy. tracktype can be data or audio. On multimedia CDs (except hidden track CDs) both of them should be present. channels is defined for audio tracks only. There can be two or four channels. No file output

-N this debugging option switches off writing to a file.

No infofile generation

-H this option switches off creation of an info file and a

cddb file. Generation of simple output for gui frontends

-g this option switches on simple line formatting, which is

needed to support gui frontends (like xcd-roast).

Verbose SCSI logging

-V this option switches on logging of SCSI commands. This

will produce a lot of output (when SCSI devices are being used). This is needed for debugging purposes. The format is the same as being used with the cdrecord program, see cdrecord(1) for more information. Quiet option

-q suppresses all screen output except error messages. That

SunOS 5.10 Last change: Version 3.0 21 User Commands CDDA2WAV(1) reduces cpu time resources. Just show information option

-J does not write a file, it only prints information about

the disc (depending on the -v option). This is just for

information purposes. CDDBP support Lookup album and track titles option

-L cddbp mode Cdda2wav tries to retrieve performer, album-,

and track titles from a cddbp server. The default server right now is 'freedb.freedb.org'. It is planned to have more control over the server handling later. The parameter defines how multiple entries are handled: 0 interactive mode, the user chooses one of the entries. 1 take the first entry without asking. Set server for title lookups

cddbp-server servername When using -L or -cddb, the server

being contacted can be set with this option. Set portnumber for title lookups

cddbp-port portnumber When using -L or -cddb, the server

port being contacted can be set with this option.

HINTS ON USAGE

Don't create samples you cannot read. First check your sam-

ple player software and sound card hardware. I experienced problems with very low sample rates (stereo <= 1575 Hz, mono <= 3675 Hz) when trying to play them with standard WAV players for sound blaster (maybe they are not legal in WAV

format). Most CD-Writers insist on audio samples in a bigen-

dian format. Now cdda2wav supports the -E endianess option

to control the endianess of the written samples.

If your hardware is fast enough to run cdda2wav uninter-

rupted and your CD drive is one of the 'perfect' ones, you will gain speed when switching all overlap sampling off with

the -P 0 option. Further fine tuning can be done with the

-n sectors option. You can specify how much sectors should

be requested in one go.

Cdda2wav supports pipes. Use a filename of - to let

cdda2wav output its samples to standard output.

Conversion to other sound formats can be done using the sox

program package (although the use of sox -x to change the

byte order of samples should be no more necessary; see

option -E to change the output byteorder).

SunOS 5.10 Last change: Version 3.0 22 User Commands CDDA2WAV(1) If you want to sample more than one track into different

files in one run, this is currently possible with the -B

option. When recording time exceeds the track limit a new file will be opened for the next track. FILES Cdda2wav can generate a lot of files for various purposes. Audio files:

There are audio files containing samples with default exten-

sions .wav, .au, .aifc, .aiff, and .cdr according to the selected sound format. These files are not generated when

option (-N) is given. Multiple files may be written when the

bulk copy option (-B) is used. Individual file names can be

given as arguments. If the number of file names given is sufficient to cover all included audio tracks, the file names will be used verbatim. Otherwise, if there are less file names than files needed to write the included tracks, the part of the file name before the extension is extended

with '_dd' where dd represents the current track number.

Cddb and Cdindex files:

If cdda2wav detects cd-extra or cd-text (album/track) title

information, then .cddb, .cdindex and .cdtext files are gen-

erated unless suppressed by the option -H. They contain

suitable formatted entries for submission to audio cd track title databases in the internet. The CDINDEX and CDDB(tm) systems are currently supported. For more information please visit www.musicbrainz.org and www.freedb.com. Inf files: The inf files are describing the sample files and the part from the audio cd, it was taken from. They are a means to transfer information to a cd burning program like cdrecord.

For example, if the original audio cd had pre-emphasis

enabled, and cdda2wav -T did remove the pre-emphasis, then

the inf file has pre-emphasis not set (since the audio file

does not have it anymore), while the .cddb and the .cdindex

have pre-emphasis set as the original does.

WARNING IMPORTANT: it is prohibited to sell copies of copyrighted material by noncopyright holders. This program may not be used to circumvent copyrights. The user acknowledges this constraint when using the software.

BUGS

The index scanner may give timeouts.

The resampling (rate conversion code) uses polynomial inter-

polation, which is not optimal. SunOS 5.10 Last change: Version 3.0 23 User Commands CDDA2WAV(1) Cdda2wav should use threads. Cdda2wav currently cannot sample hidden audio tracks that

reside in track #1 index 0.

ACKNOWLEDGEMENTS Thanks goto Project MODE (http://www.mode.net/) and

Fraunhofer Institut fuer integrierte Schaltungen (FhG-IIS)

(http://www.iis.fhg.de/) for financial support. Plextor Europe and Ricoh Japan provided cdrom disk drives and cd burners which helped a lot to develop this software. Rammi has helped a lot with the debugging and showed a lot of stamina when hearing 100 times the first 16 seconds of the first track of the Krupps CD. Libparanoia contributed by Monty (Christopher Montgomery) xiphmont@mit.edu. AUTHOR

Heiko Eissfeldt heiko@colossus.escape.de (1993-2004)

2004-today:

Joerg Schilling Seestr. 110

D-13353 Berlin

Germany DATE 12 Jan 2010 INTERFACE STABILITY

The interfaces provided by cdda2wav are designed for long

term stability. As cdda2wav depends on interfaces provided

by the underlying operating system, the stability of the

interfaces offered by cdda2wav depends on the interface sta-

bility of the OS interfaces. Modified interfaces in the OS

may enforce modified interfaces in cdda2wav.

ATTRIBUTES

See attributes(5) for descriptions of the following attri-

butes: SunOS 5.10 Last change: Version 3.0 24 User Commands CDDA2WAV(1)

_______________________________________

| ATTRIBUTE TYPE | ATTRIBUTE VALUE|

|____________________|__________________|_

| Availability | media/cdrtools |

|____________________|__________________|_

| Interface Stability| Unstable |

|____________________|_________________|

NOTES This utility is part of cdrtools. The source for cdrtools is available on http://opensolaris.org. SunOS 5.10 Last change: Version 3.0 25