Dobrica Pavlinušić's random unstructured stuff
osmocom: Revision 9
voice info17:42 < dpavlin> stupid question about by first experiment with osmocom-bb http://blog.rot13.org/2011/01/osmocom-bb_-_free_software_finally_comes_to_gsm.html - are hex numbers I see scroll by voice data by any chance or controll stream? 17:42 < steve|m> dpavlin: that's the voice_ind 17:43 < steve|m> http://bb.osmocom.org/trac/changeset/a4e34316c403a49ca57fd907e55a16b721629e35/src 17:43 < steve|m> so maybe revert this commit in your local branch if you don't need that (transferring voice data to the host) 17:45 < dpavlin> Great. With something like pipe I could go a long way :-) 17:46 < dpavlin> Can I inject it over serial port? For something like text2speech? 17:46 < steve|m> tnt has code for that, but he hasn't committed it yet 17:46 < steve|m> jolly even has written an interface to LCR 17:49 < dpavlin> I would love to help test it, if such help is needed.
19:21 < dpavlin> tnt: do you have any pointers to information about calypso voice format I can read? 19:23 < dw> the code? :) 19:26 < dpavlin> I tried reading code under src/target/firmware/calypso but I'm probably looking in wrong place, because I'm not closer to understanding voice.raw format than I was few days ago. 19:30 < steve|m> dpavlin: looked at http://bb.osmocom.org/trac/browser/src/target_dsp/calypso/dsp_sniff.S?rev=d1cb8ea9b784c7acbafbb2fdcedbdf4655c2f6f5 ? 19:31 < tnt> steve|m: that's not for voice.raw 19:31 < tnt> There is just no written reference anywhere of the buffer format. 19:31 < steve|m> ah, sorry, confused that.. 19:44 < tnt> dpavlin: from memory, it's all the class 1 bits, then some bits always at 0 (4 bits IIRC), then all the class 2 bits of a GSM 610 frame. They're packet in 16 bits works, MSB first A5/1
git clone git://git.srlabs.de/kraken NeoBTS |