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Dobrica Pavlinušić's random unstructured stuff
osmocom: Revision 8
voice info
17:42 < 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 Neo |