Digital Voice Systems VC-20-ATC-10B Dokumentacja Pobierz pdf (Strona 61)

FAA20 Embedded NEXCOM Vocoder

Board Manual

This manual has been prepared for the Federal Aviation Administration.

FA100-00107 (March 2004) – Rev 1.0.0 Page 55

7.4.2 DAT2LIN Utility

The DAT2LIN utility converts binary linear voice files (*.dat and *.syn) to

ASCII linear voice files (*.lin and *.lon). Figure 25 provides the DAT2LIN

command syntax. Figure 26 provides the ASCII linear format.

Figure 25: DAT2LIN Utility Command Syntax

dat2lin [options] infile outfile

Where:

-nocmd disables printing of FAA20 control commands within output stream

-ctl filename Reads control file and uses controls to create output file

-h Print help

-q Run in quite mode

-qb Disable banner printing only

Figure 26: ASCII Linear Format (L0)

L0MSSSSXXXX…XXXXEEEE

Where:

M = Timing Mode (Always = 0 for test vectors)

SSSS = Sequence number (incrementing hexdata value)

X…X = Linear Sample Data (20 samples x 4 char/sample = 80 char)

EEEE = Checksum

1 2 ... 56 57 58 59 60 61 62 63 64 65 66 ... 108 109

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Digital Voice Systems VC-20-ATC-10B Dokumentacja Strona 61