cdda2wav.man

刻录光盘的程序

     ----VVVV  --------vvvveeeerrrrbbbboooosssseeee----SSSSCCCCSSSSIIII
          enable SCSI command logging to  the  console.  This  is
          mainly used for debugging.

     ----QQQQ  --------ssssiiiilllleeeennnntttt----SSSSCCCCSSSSIIII
          suppress SCSI command error  reports  to  the  console.
          This is mainly used for guis.

     ----JJJJ  --------vvvveeeerrrrssssiiiioooonnnn
          display version of cdda2wav on standard output.

     Defaults depend on the
          MMMMaaaakkkkeeeeffffiiiilllleeee and eeeennnnvvvviiiirrrroooonnnnmmmmeeeennnntttt vvvvaaaarrrriiiiaaaabbbblllleeee  settings  (currently
          CCCCDDDDDDDDAAAA____DDDDEEEEVVVVIIIICCCCEEEE ).

EEEENNNNVVVVIIIIRRRROOOONNNNMMMMEEEENNNNTTTT VVVVAAAARRRRIIIIAAAABBBBLLLLEEEESSSS
     CCCCDDDDDDDDAAAA____DDDDEEEEVVVVIIIICCCCEEEE is used to set the device name. The device  nam-
     ing is compatible with J鰎g Schilling's cdrecord package.



SunOS 5.4                 Last change:                          1






CDDA2WAV(1)               User Commands               CDDA2WAV(1)



DDDDIIIISSSSCCCCUUUUSSSSSSSSIIIIOOOONNNN
     ccccddddddddaaaa2222wwwwaaaavvvv is able to read parts of an aaaauuuuddddiiiioooo CD or  mmmmuuuullllttttiiiimmmmeeeeddddiiiiaaaa
     CDROM  (containing  audio  parts)  directly digitally. These
     parts can be written to a file, a pipe, or to a  sound  dev-
     ice.

     ccccddddddddaaaa2222wwwwaaaavvvv stands for CCCCDDDDDDDDAAAA to WWWWAAAAVVVV (where CCCCDDDDDDDDAAAA stands for  com-
     pact  disc  digital  audio  and WWWWAAAAVVVV is a sound sample format
     introduced by MS Windows).  It  allows  copying  CCCCDDDDDDDDAAAA  audio
     data  from  the CDROM drive into a file on your ram-, hard-,
     floppy- or whatever-disk in WWWWAAAAVVVV or other formats.

     The latest versions 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.
     Please note that you need newer kernels and c  libraries  to
     take advantage of this feature.

     If your CDROM  (not  yet  for  SCSI  drives)  is  on  device
     ////ddddeeeevvvv////ccccddddrrrroooommmm and it is loaded with an audio CD, you may simply
     invoke ccccddddddddaaaa2222wwwwaaaavvvv and it will create the sound file  aaaauuuuddddiiiioooo....wwwwaaaavvvv
     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 lim-
     ited. SCSI drives have to use different devices  (see  files
     RRRREEEEAAAADDDDMMMMEEEE and RRRREEEEAAAADDDDMMMMEEEE....IIIINNNNSSSSTTTTAAAALLLLLLLL for details).

HHHHIIIINNNNTTTTSSSS OOOONNNN OOOOPPPPTTTTIIIIOOOONNNNSSSS
     Options
          Most of the options are used to control the  format  of
          the  WAV  file.  In  the following text all of them are
          described.

     Select Device
          ----DDDD _d_e_v_i_c_e selects the CDROM drive device  to  be  used.
          The  specifier  given should correspond to the selected
          interface (see below).  CCCCHHHHAAAANNNNGGGGEEEE!!!!  For  the  cooked_ioctl
          interface  this  is  the  cdrom  device  descriptor  as
          before.  TTTThhhheeee SSSSCCCCSSSSIIII ddddeeeevvvviiiicccceeeessss uuuusssseeeedddd wwwwiiiitttthhhh tttthhhheeee aaaaddddddddrrrreeeesssssssseeeedddd  wwwwiiiitttthhhh
          tttthhhheeeeiiiirrrr  SSSSCCCCSSSSIIII----BBBBuuuussss,,,, SSSSCCCCSSSSIIII----IIIIdddd,,,, aaaannnndddd SSSSCCCCSSSSIIII ddddeeeevvvviiiicccceeee ddddeeeessssccccrrrriiiippppttttoooorrrr!!!!!!!!!!!!
          One example for a SCSI CDROM drive on bus 0  with  SCSI
          ID 3 and lun 0 is -D0,3,0.

     Select Auxiliary device
          ----AAAA _a_u_x_d_e_v_i_c_e is necessary for  CD-Extra  handling.  For
          Non-SCSI-CDROM  drives this is the same device as given
          by -D (see above). For  SCSI-CDROM  drives  it  is  the
          CDROM  drive (SCSI) device (i.e. ////ddddeeeevvvv////ssssrrrr0000 ) correspond-
          ing to the SCSI device (i.e.  0000,,,,3333,,,,0000 ). It has to  match
          the device used for sampling.




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CDDA2WAV(1)               User Commands               CDDA2WAV(1)



     Select Interface
          ----IIII _i_n_t_e_r_f_a_c_e selects the  CDROM  drive  interface.  For
          SCSI  drives use generic_scsi (cooked_ioctl may not yet
          be  available  for  all  devices):   ggggeeeennnneeeerrrriiiicccc____ssssccccssssiiii   and
          ccccooooooookkkkeeeedddd____iiiiooooccccttttllll.   The  first uses the generic SCSI inter-
          face, the latter uses the ioctl of  the  CDROM  driver.
          The  latter  variant  works only when the kernel driver
          supports CCCCDDDDDDDDAAAA reading. This  entry  has  to  match  the
          selected CDROM device (see above).

     Enable echo to soundcard
          ----eeee 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 crit-
          ical,  so  it  works  best  with the ----qqqq option.  To use
          ccccddddddddaaaa2222wwwwaaaavvvv as a pseudo CD player without recording  in  a
          file  you  could  use ccccddddddddaaaa2222wwwwaaaavvvv ----qqqq ----eeee ----tttt2222 ----dddd0000 ----NNNN to play
          the  whole  second  track.  This  feature  reduces  the
          recording  speed  to  at most onefold speed. You cannot
          make better recordings than your sound  card  can  play
          (since the same data is used).

     Change pitch of echoed audio
          ----pppp ppppeeeerrrrcccceeeennnnttttaaaaggggeeee 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  percentages  correspond   to   lower
          pitches,  i.e.   -p  50 transposes the audio output one
          octave lower.  See also  the  script  ppppiiiittttcccchhhhppppllllaaaayyyy  as  an
          example. This option was contributed by Raul Sobon.

     Select mono or stereo recording
          ----mmmm or ----cccc 1111 selects mono recording (both stereo channels
          are mixed), ----ssss or ----cccc 2222 or ----cccc ssss selects stereo recording
          (doubles file size). Parameter s will swap  both  sound
          channels.

     Select maximum quality
          ----xxxx 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
          ----bbbb 8888 specifies 8 bit (1 Byte) for each sample  in  each
          channel;  ----bbbb 11112222 specifies 12 bit (2 Byte) for each sam-
          ple in each channel; ----bbbb 11116666 specifies 16  bit  (2  Byte)
          for  each sample in each channel (Ensure that your sam-
          ple 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  sam-
          ples, so they waste some disk space.



SunOS 5.4                 Last change:                          3






CDDA2WAV(1)               User Commands               CDDA2WAV(1)



     Select sample rate
          ----rrrr _s_a_m_p_l_e_r_a_t_e selects a sample rate.  _s_a_m_p_l_e_r_a_t_e can be
          in  a  range between 44100 and 900. Option ----RRRR lists all
          available rates.

     Select sample rate divider
          ----aaaa _d_i_v_i_d_e_r selects a sample rate divider.  _d_i_v_i_d_e_r  can
          be  minimally  1  and  maximally  50.5  and  everything
          between in steps of 0.5.  Option ----RRRR lists all available
          rates.

          To make the sound smoother  at  lower  sampling  rates,
          ccccddddddddaaaa2222wwwwaaaavvvv  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  higher  frequencies.  Standard
          sector  size of an audio CD (ignoring additional infor-
          mation) is 2352 Bytes. In order to finish  summing  for
          an  output  sample at sector boundaries the rates above
          have to be choosen.  Arbitrary sampling rates  in  high
          quality  would require some interpolation scheme, which
          needs much more sophisticated programming.

     List a table of all sampling rates
          ----RRRR 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
          ----tttt _n+_m selects nnnn as the start track and optionally mmmm 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 following 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 ----BBBB option (see below).

     Select start index
          ----iiii  _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 time
          ----dddd  nnnn sets recording time to _n seconds or set recording
          time  for whole track if _n is zero. In order to specify
          the duration 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 ----



SunOS 5.4                 Last change:                          4






CDDA2WAV(1)               User Commands               CDDA2WAV(1)



          dddd 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