Commit Graph

234 Commits

Author SHA1 Message Date
Kamal Mostafa 6340365e2f simpleaudio-sndfile: fix minimodem tx_interactive
Un-break tx_interactive: minimodem enables tx_interactive whenever the
stream_name is NULL, so go back to using the stream_name as the sndfile
filename.
2012-09-10 20:02:53 -07:00
Kamal Mostafa 093d9aa18a minimodem-0.13-1 2012-09-09 18:40:41 -07:00
Kamal Mostafa 9f1695a3b6 minimodem: fix --auto-carrier crash on positive-shift modes 2012-09-09 17:42:53 -07:00
Kamal Mostafa d603fc444d minimodem: --alsa[=plughw:X,Y] 2012-09-09 15:24:35 -07:00
Kamal Mostafa 5ee6a23c42 simpleaudio: backend_device support 2012-09-09 15:24:01 -07:00
Kamal Mostafa c2bb5c6205 simpleaudio-alsa: fix bogus latency, set 200 ms 2012-09-09 15:03:40 -07:00
Kamal Mostafa 7df0366e60 minimodem-0.12.1-1 2012-09-06 16:47:27 -07:00
Kamal Mostafa fabd47ba99 minimodem: less aggressive refine on acquisition 2012-09-05 23:22:27 -07:00
Kamal Mostafa 2612aba0e2 minimodem-0.12-1 2012-09-05 09:45:34 -07:00
Kamal Mostafa c8dd7ac06b minimodem: fix --rx-one 2012-09-05 09:37:06 -07:00
Kamal Mostafa 3a1469b85e minimodem: fix usage message 2012-09-05 09:36:12 -07:00
Kamal Mostafa 8931ae1311 baudot: use non-Baudot chars for debug output 2012-09-04 15:37:19 -07:00
Kamal Mostafa 30de59026b minimodem: --inverted switches the mark/space freqs 2012-09-04 16:26:10 -07:00
Kamal Mostafa 8731b54bc2 minimodem: refine fsk frame position on carrier acquisition
FSK_ANALYZE_NSTEPS was previously 10.

Now FSK_ANALYZE_NSTEPS_CARRIER_LOCK is 100, and FSK_ANALYZE_NSTEPS is
reduced to 4.

(Also, try_confidence_search_limit = INFINITY on carrier acquisition frame).

Effects: Better initial phase lock on signal in the first
place; sloppier tracking of fast/slow signals; reduced longterm CPU load.
2012-09-03 23:31:16 -07:00
Kamal Mostafa aa1124d6e7 minimodem: fix incorrect try_max_nsamples calculation 2012-09-02 14:25:43 -07:00
Kamal Mostafa fd45b5571c minimodem: restrict try_max_nsamples to 75% of a bit-width
... actually 125% of a bit width before acquiring carrier.
2012-09-02 14:27:04 -07:00
Kamal Mostafa 7b0e47ac4e minimodem: --binary-output 2012-09-01 00:09:32 -07:00
Kamal Mostafa a172268117 minimodem: auto get samplerate from audio files 2012-09-02 18:10:59 -07:00
Kamal Mostafa 0f3338a91b minimodem: match sync_byte in the fsk layer 2012-09-02 12:02:06 -07:00
Kamal Mostafa 9187dd60a7 minimodem: --rx same (NOAA SAME protocol) 2012-09-01 13:34:50 -07:00
Kamal Mostafa 04cc215640 minimodem: --sync-byte {0xXX} 2012-09-01 14:54:32 -07:00
Kamal Mostafa 82c72352ab minimodem: --startbits; deprecate -T 2012-09-01 13:33:49 -07:00
Kamal Mostafa e2a51f093a databits: split out the databits implementations
rename framebits to databits
added databits_binary decoder
2012-08-31 21:39:08 -07:00
Kamal Mostafa a7d1602c9d minimodem: calculate frame_bits_{mask,shift} 2012-08-31 20:42:05 -07:00
Kamal Mostafa f16e318ae4 minimodem-0.11-1 2012-08-30 16:51:05 -07:00
Kamal Mostafa cbd048aac6 minimodem: bfsk_nstartsbits variable
- FIXME: doesn't actually implement the proper expect_bits string
 - only useful for testing SAME decoder's hardcoded "dddddddd" expect_bits
2012-08-30 16:02:53 -07:00
Kamal Mostafa 7b34e89433 minimodem: --stopbits replaces --txstopbits; better bps metric
RX metrics account for fractional number of stop bits (e.g 1.5);
RX bps metric slightly more accurate (?).
2012-08-30 15:05:33 -07:00
Kamal Mostafa becf16761e minimodem: fsk confidence thresholds: thresh=1.5, limit=2.3
Note: fsk_confidence_thresh can now be reduced to 1.5 due to track_amplitude.
2012-08-26 15:16:49 -07:00
Kamal Mostafa 3447a994b7 minimodem: track_amplitude signal amplitude drop 2012-08-30 00:07:15 -07:00
Kamal Mostafa 1ed3b8465a fsk: confidence algo #6: "SNR * (1-divergence)"
Disabled all the hardcoded noise limiters.
2012-08-24 22:38:41 -07:00
Kamal Mostafa 23a44ce374 tests: noise testcases 2012-08-30 00:25:15 -07:00
Kamal Mostafa 0c022aca03 minimodem: --rx-one quits after first no-carrier 2012-08-30 10:17:55 -07:00
Kamal Mostafa b480b841da minimodem: --Xrxnoise=factor adds test noise
Injects random noise to input signal (in memory) before analysis.
2012-08-30 00:00:19 -07:00
Kamal Mostafa 664f345636 tests: run fewer rate-slop cases 2012-08-30 09:00:02 -07:00
Kamal Mostafa 6d749c7771 simpleaudio-alsa: enable ALSA soft-resample 2012-08-29 21:26:47 -07:00
Kamal Mostafa e59931beba tests: amplitude 2012-08-25 10:07:26 -07:00
Kamal Mostafa dd6040336d minimodem: stats report ampl={amplitude} 2012-08-25 09:17:05 -07:00
Kamal Mostafa f8434f3c94 simple-tone: fix sin() rounding for S16 shorts
- fix sine wave rounding for shorts
 - short epsilon == 1
 - clamp shorts to mag <= 1.0
2012-08-26 12:34:38 -07:00
Kamal Mostafa 762a3ea788 minimodem: --volume sets tx amplitude 2012-08-25 00:32:11 -07:00
Kamal Mostafa 501ee25c7d fsk: expect_bits_string param, no start/stop bits required
fsk_find_frame() takes expect_bits_string  (e.g. "10dddddddd1"), as a
parameter supplied by the caller allowing for encodings which don't use
any start/stop bits (e.g. just "dddddddd").
2012-08-24 13:20:20 -07:00
Kamal Mostafa 6bb683a90b minimodem: fix broken -l switch 2012-08-23 19:23:33 -07:00
Kamal Mostafa 9c6b06f8b0 minimodem-0.10.1-2 2012-08-21 18:43:29 -07:00
Kamal Mostafa 3a26594c4b debian: enable build hardening flags 2012-08-20 14:09:33 -07:00
Kamal Mostafa 8c23532836 minimodem-0.10.1-1 2012-08-19 16:10:38 -07:00
Kamal Mostafa 3999041f07 tests: run fewer rate-slop tests 2012-08-19 16:02:21 -07:00
Kamal Mostafa e9263c9c9d fsk: fix noise <= EPSILON handling
Handle noise <= EPSILON better; fixes (im)perfect test cases on i386.
2012-08-19 15:58:08 -07:00
Kamal Mostafa 96ec6450bb minimodem: fix size_t %zu warnings on 32-bit platforms 2012-08-19 14:39:14 -07:00
Kamal Mostafa c9efe7f5e8 debian: disable ALSA on non-Linux platforms
kfreebsd in Debian supplies alsa via the alsa-oss wrapper package, but that
is missing snd_pcm_recover() at least, so build --without-alsa on the
non-Linux platforms.
2012-08-19 13:52:35 -07:00
Kamal Mostafa 059719fe02 configure: move summary message 2012-08-19 13:16:13 -07:00
Kamal Mostafa 814a86eaf3 minimodem-0.10-1 2012-08-19 09:11:49 -07:00