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- 24. _D_A_T__M_a_n_a_g_e_r__T_o_o_l
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- 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.
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- 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.
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- 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.
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- 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.
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- _P_L_E_A_S_E _N_O_T_E that as of 6.5, DAT audio is no longer
- officially supported.
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- 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
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- This section lists problems in the DAT Manager software and
- ways to work around them.
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- +o DAT Manager does not let you cue to an index on a tape.
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- +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.
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- +o DAT Manager displays uncorrected frame numbers when
- playing back a tape recorded with SMPTE time code in
- place of running time.
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- +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.
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- 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.
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- +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.
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