cdda2wav.man

刻录光盘的程序

          the  time  information  on  the audio CD (shown by your
          hifi CD player).  Differences can occur by the usage of
          the   ----oooo 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 a complete audio CD in one go in different files
          ----BBBB copies each track into a seperate 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. -d99999).

     Set start sector offset
          ----oooo _s_e_c_t_o_r_s increments start sector of the track by _s_e_c_-
          _t_o_r_s.   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  ---- wwww
          option see below.)

     Wait for signal option
          ----wwww Turning on this option will suppress all silent out-
          put  at startup, reducing possibly file size.  ccccddddddddaaaa2222wwwwaaaavvvv
          will watch for any signal  in  the  output  signal  and
          switches on writing to file.

     Find extrem samples
          ----FFFF Turning on this option will display the  most  nega-
          tive  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
          ----GGGG If this option is  given,  input  samples  for  both
          channels  will  be  compared. At the end of the program



SunOS 5.4                 Last change:                          5






CDDA2WAV(1)               User Commands               CDDA2WAV(1)



          the result is  printed.  Differences  in  the  channels
          indicate stereo, otherwise when both channels are equal
          it will indicate mono.

     Undo the pre-emphasis in the input samples
          ----TTTT Some older audio CDs are recorded  with  a  modified
          frequency  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 recordings, that show this  setting  only  in
          the  subchannels. If you know you have a pre-emphasized
          recording and want cdda2wav to undo this, you  have  to
          specify this option. A reverse filtering is done before
          the samples are written into the audio file.

     Set audio format
          ----OOOO  aaaauuuuddddiiiioooottttyyyyppppeeee can be _w_a_v (for wav files) or _a_u  or  _s_u_n
          (for sun PCM files) or _c_d_r or _r_a_w (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 format). This holds for all audio formats.
          Wav  files  are compatible to Wind*ws sound files, they
          have lsb,msb byte order as being 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  compati-
          ble. 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 'for-
          mat', 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 information in
          this format, the sample parameters can only be  identi-
          fied by playing the samples on a soundcard or similiar.
          The default filename extension is '.cdr' or '.raw'.

     Select cdrom drive reading speed
          ----SSSS  ssssppppeeeeeeeedddd allows to switch the cdrom drive to a certain
          level  of  speed  in  order  to reduce read errors. The
          actual speed factor can generally be  given  completely
          freely,  since  there are often less settings than fac-
          tors possible. 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
          ----MMMM  ccccoooouuuunnnntttt enables  calculation  of  MD-5  checksum  for
          'count'  bytes  from the beginning of a track. This was
          introduced for quick comparisons of tracks.



SunOS 5.4                 Last change:                          6






CDDA2WAV(1)               User Commands               CDDA2WAV(1)



     Do linear or overlapping reading of sectors
          ----PPPP  sssseeeeccccttttoooorrrrssss sets the given number of sectors  for  ini-
          tial  overlap sampling for jitter correction. Two cases
          are to be distinguished. For nonzero values, some  sec-
          tors are read twice to enable cdda2wav's jitter correc-
          tion.  If an argument of zero is given, no overlap sam-
          pling  will be used.  NNNNEEEEWWWWSSSS!!!! For nonzero overlap sectors
          cdda2wav dynamically adjusts the  setting  during  sam-
          pling  (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  over-
          lap  setting, 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 oth-
          erwise.   The  case of zero sectors is nice on low load
          situations or errorfree (perfect) cdrom drives and per-
          fect (not scratched) audio cds.

     Set the transfer size
          ----nnnn  sssseeeeccccttttoooorrrrssss will set the transfer size to the specified
          sectors per request.

     Set number of ring buffer elements
          ----llll  bbbbuuuuffffffffeeeerrrrssss will allocate the specified number of  ring
          buffer elements.

     Set endianess of input samples
          ----CCCC  eeeennnnddddiiiiaaaannnneeeessssssss will override the default settings of the
          input format.  Endianess can be set explicitly to "lit-
          tle" or "big" or to the automatic  endianess  detection
          based on voting with "guess".

     Set endianess of output samples
          ----EEEE  eeeennnnddddiiiiaaaannnneeeessssssss (endianess can be "little" or "big") will
          override the default settings of the output format.

     Verbose option
          ----vvvv  lllleeeevvvveeeellll prints more information. A binary mask allows
          selection of different information.

          0000 keeps quiet

          1111 displays the table of contents

          2222 displays a summary of recording parameters

          4444 invokes the index scanner and  displays  start  posi-
          tions of indices

          8888 retrieves and displays a media catalog number



SunOS 5.4                 Last change:                          7






CDDA2WAV(1)               User Commands               CDDA2WAV(1)



          11116666  retrieves  and  displays   international   standard
          recording codes

          33332222 displays track start positions  in  absolute  sector
          notation

          To combine several requests just add  the  numbers  and
          give the sum as argument.

     The table of contents
          The display will show the table of contents with number
          of tracks and total time (displayed in _m_m:_s_s._h_h format,
          _m_m=minutes, _s_s=seconds, _h_h=rounded 1/100 seconds).  The
          following list displays track number and track time for
          each  entry.   The  summary  gives  a  line  per  track
          describing the type of the track.

           ttttrrrraaaacccckkkk pppprrrreeeeeeeemmmmpppphhhhaaaassssiiiissss ccccooooppppyyyyppppeeeerrrrmmmmiiiitttttttteeeedddd ttttrrrraaaacccckkkkttttyyyyppppeeee cccchhhhaaaannnnssss

          The ttttrrrraaaacccckkkk column holds the track  number.   pppprrrreeeeeeeemmmmpppphhhhaaaassssiiiissss
          shows  if  that  track has been given a non linear fre-
          quency response.  NOTE: You can undo this  effect  with
          the  ----TTTT option.  ccccooooppppyyyy----ppppeeeerrrrmmmmiiiitttttttteeeedddd indicates if this track
          is allowed to copy.  ttttrrrraaaacccckkkkttttyyyyppppeeee can be data or audio. On
          multimedia  CDs  (except hidden track CDs) both of them
          should be  present.   cccchhhhaaaannnnnnnneeeellllssss  is  defined  for  audio
          tracks only. There can be two or four channels.

     No file output
          ----NNNN this debugging option  switches  off  writing  to  a
          file.

     No infofile generation
          ----HHHH this option switches off creation of  an  info  file
          and a cddb file.

     Generation of simple output for gui frontends
          ----gggg this option  switches  on  simple  line  formatting,
          which  is  needed  to  support gui frontends (like xcd-
          roast).

     Verbose SCSI logging
          ----VVVV this option switches on logging  of  SCSI  commands.
          This  will  produce  a lot of output (when SCSI devices
          are being used), which is  needed  for  debugging  pur-
          poses.  The  format  is the same as being used with the
          cdrecord package from J