Converting voice data transferred from non-AIX computer systems

You can transfer audio data from other systems provided that you can get the audio data into the AIX file system. The audio data can be in one of the following formats:

“Raw” (unformatted) data

The data must be stored in the file in the following format:

Single channel
linearly encoded PCM 16-bit samples (two’s complement)
8 kHz sampling rate
Big-endian format (ms byte before ls byte)
No header

AIFF (Macintosh Audio Interchange File Format)

The bvi_aiff utility converts files stored in AIFF format into the required format for processing by bvi_seg. It takes an input file specified as a parameter and generates a file whose name is specified in the bvi.control file by the VOICE_FILE_NAME parameter. The AIFF file must be written in the following format:

Single channel
16-bit samples (two’s complement)
Sample rate equal to or greater than 8 kHz (bvi_aiff will convert to 8 kHz)

WAV (Microsoft Windows format)

The bvi_wav utility converts files stored in Microsoft WAV format (files with an extension of .wav) into the required format for processing by bvi_seg. It takes an input file specified as a parameter and generates a file whose name is specified in the bvi.control file using the VOICE_FILE_NAME parameter. The WAV file must be written in the following format:

Single channel
16-bit samples (two’s complement)
Sample rate equal to or greater than 8 kHz (bvi_wav will convert to 8 kHz)