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IRIX Installation Tools & Overlays 2002 May
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SGI IRIX Installation Tools & Overlays 2002 May - Disc 3.iso
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dmedia_eoe
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ch24.z
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2002-04-11
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24. _D_A_T__M_a_n_a_g_e_r__T_o_o_l
DAT Manager, invoked from the command line as _d_a_t_m_a_n, allows
you to play audio DAT tapes on an IRIX-supported SCSI DAT
drive. The audio is played through the IRIX audio hardware.
DAT Manager is a recorder as well as a player. It can
record data coming from the IRIX audio hardware or from a
file in the computer's file system to DAT. The tapes
recorded and played by DAT Manager are compatible with
commercial DAT recorders. DAT Manager also allows you to
capture digital audio data directly from a tape across the
SCSI bus to a disk file.
The IRIX Digital Media Noship subsystem for 6.5
(_d_m_e_d_i_a__n_o_s_h_i_p._s_w._d_a_t) includes source code for a command-
line tool, _d_o_d_a_t, which allows you to copy tracks between
an audio DAT and sound files on disk.
The version of DAT Manager included in IRIX Digital Media
Tools 6.5 is the same as the version that was shipped with
the 6.2 release.
_P_L_E_A_S_E _N_O_T_E that as of 6.5, DAT audio is no longer
officially supported.
24.1 _K_n_o_w_n__P_r_o_b_l_e_m_s__a_n_d__W_o_r_k_a_r_o_u_n_d_s
This section lists problems in the DAT Manager software and
ways to work around them.
+o DAT Manager does not let you cue to an index on a tape.
+o The only nonaudio data DAT Manager currently records is
program number and absolute time code. This means that
DAT Manager does not record program time. There is
currently no way to renumber the programs on a tape or
to erase a program number.
+o DAT Manager displays uncorrected frame numbers when
playing back a tape recorded with SMPTE time code in
place of running time.
+o When recording to a file from DAT Manager, the sampling
rate stored in the AIFF-C file header is the rate of
the most recently played portion of the DAT. This
means that given a DAT that has programs recorded at
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different sampling rates, DAT Manager might create a
file with the wrong sampling rate if you have just
played a program with a different sampling rate from
the program about to be recorded.
Workaround: When recording to disk from a DAT that
contains programs with different sampling rates, use
separate AIFF-C files for the different programs. When
you are about to record a DAT program to disk that has
a different sampling rate from the last program you
played, first play a portion of the new program. Then,
rewind to the beginning of the program and begin
recording to an AIFF-C file.
+o The music catalog function used by CD Manager is not
currently implemented for tapes because so few of them
have the table of contents necessary to uniquely
identify a tape.