I am trying to convert the voice.raw file generated by the mobile application ion the Sylvain's test branch to audible audio using the GAPK tool. I seem not to be able to run in with the apropriate parameters as I only get screeching sounds as a result. I assume the the raw TI calypso audio is in the format indicated with ti-fr. I tried things as: gapk -i voice.raw -i voice.pcm -f ti-fr -g rawpcm-s16le
but with no usefull result. Could anyone give me some guidance?
regards, Stefan
----------------------- this is the output of the GAPK tool as I compiled it with the supported codecs. Is there anything missing?
Usage: /home/gsm/project/gsm/gapk/src/.libs/lt-gapk [options]
Options: -i, --input-file=FILE Input file -o, --output-file=FILE Output file -f, --input-format=FMT Input format (see below) -g, --output-format=FMT Output format (see below)
Supported codecs: name fmt enc dec description pcm * Raw PCM signed 16 bits samples hr * * * GSM 06.20 Half Rate codec fr * GSM 06.10 Full Rate codec (classic gsm codec) efr * GSM 06.60 Enhanced Full Rate codec
Supported formats: amr-efr Classic .amr file containing EFR (=AMR 12.2k) data gsm Classic .gsm file format hr-ref-dec 3GPP HR Reference decoder code parameters file format hr-ref-enc 3GPP HR Reference encoder code parameters file format racal-hr Racal HR TCH/H recording racal-fr Racal FR TCH/F recording racal-efr Racal EFR TCH/F recording rawpcm-s16le Raw PCM samples Signed 16 bits little endian ti-hr Texas Instrument HR TCH/H buffer format ti-fr Texas Instrument FR TCH/F buffer format ti-efr Texas Instrument EFR TCH/F buffer format