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354 Voice API for Windows Operating Systems Library Reference — November 2003
dx_recwav( ) — record voice data to a single WAVE file
dx_recwav( )
record voice data to a single WAVE file
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! Description
The dx_recwav( ) convenience function records voice data to a single WAVE file. This function in
turn calls dx_reciottdata( ).
Name: SHORT dx_recwav(chdev, filenamep, tptp, xpbp, mode)
Inputs: int chdev
• valid channel device handle
char *filenamep
• pointer to name of file to record to
DV_TPT *tptp
• pointer to Termination Parameter Table structure
DX_XPB *xpbp
• pointer to I/O Transfer Parameter Block
unsigned short mode
• record mode
Returns: 0 if successful
-1 if failure
Includes: srllib.h
dxxxlib.h
Category: I/O Convenience
Mode: synchronous
Platform: DM3, Springware
Parameter Description
chdev specifies the valid channel device handle obtained when the channel was
opened using dx_open( )
tptp points to the Termination Parameter Table structure, DV_TPT, which specifies
termination conditions for playing. For more information on this function, see
DV_TPT, on page 485.
filenamep points to the name of the file to record to
xpbp points to the I/O Transfer Parameter Block, DX_XPB, which specifies the file
format, data format, sampling rate, and resolution. For more information on
this structure, see DX_XPB, on page 520.
Note: If xpbp is set to NULL, the function will record in 11 kHz linear 8-bit
PCM.
mode specifies the play mode. The following two symbolic values may be used
individually or ORed together:
• EV_SYNC – synchronous operation (must be specified)
• PM_TONE – play 200 msec audible tone