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
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
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
dd6040336d
minimodem: stats report ampl={amplitude}
2012-08-25 09:17:05 -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
96ec6450bb
minimodem: fix size_t %zu warnings on 32-bit platforms
2012-08-19 14:39:14 -07:00
Kamal Mostafa
f81f069d95
minimodem: --limit (2.3) sets fsk_confidence_search_limit
...
Significant performance enhancements from fsk_confidence_search_limit:
runs far fewer FFT's when --limit (default 2.3) is less than INFINITY.
2012-08-18 21:24:01 -07:00
Kamal Mostafa
bc30de33a4
minimodem: fix carrier_nsamples
...
All test cases (except 45.45 RTTY) get rate perfect!
2012-08-18 13:43:45 -07:00
Kamal Mostafa
18b1eb7457
minimodem: default confidence = 2.0 for SNR algo #5
2012-08-18 19:19:22 -07:00
Kamal Mostafa
cf9ba20ee0
fsk: confidence algo #5 (SNR)
...
Computes SNR confidence value, where "signal" is the magnitude of the FSK
driven frequency, and "noise" is the magnitude of the non-driven frequency.
(Also includes unused algo #4 code, which may not compile anymore.)
2012-08-14 22:31:30 -07:00
Kamal Mostafa
df80c98e22
minimodem: fsk_frame_overscan replaces FSK_SCAN_LAG
2012-08-16 01:03:54 -07:00
Kamal Mostafa
fbc99e54fb
simpleaudio: benchmarks cpu id
2012-08-15 12:00:17 -07:00
Kamal Mostafa
67eb9821be
update copyright dates
2012-08-13 21:51:53 -07:00
Kamal Mostafa
a9c2258706
minimodem: use sine lookup table of 1024, or --lut={tx_sin_table_len}
2012-08-13 21:17:03 -07:00
Kamal Mostafa
d273828f80
minimodem: --float-samples: short arg -F deprecated
2012-08-13 15:55:57 -07:00
Kamal Mostafa
bd08b9002c
minimodem: --benchmarks: runs internal performance tests
2012-08-13 15:51:04 -07:00
Kamal Mostafa
9948e7c7dd
minimodem: --tx uses S16 samples by default, --float-samples overrides
2012-08-12 15:47:59 -07:00
Kamal Mostafa
4d326a8c82
simpleaudio: generalized simpleaudio_open_stream
2012-08-12 14:24:55 -07:00
Kamal Mostafa
3053ea78bc
simpleaudio: SA_SAMPLE_FORMAT framework
2012-08-11 21:00:37 -07:00
Kamal Mostafa
8d90e839d7
minimodem: --samplerate sets the audio sample rate
2012-08-11 10:24:28 -07:00
Kamal Mostafa
22317f54fc
simpleaudio: handle any audio sample rate
2012-08-11 10:07:12 -07:00
Kamal Mostafa
b78828ea11
minimodem: usage message fix
2012-08-08 20:18:52 -07:00
Kamal Mostafa
4b926d58bb
minimodem: --alsa selects ALSA at runtime
...
./configure now enables --with-pulseaudio and --with-alsa by default;
either can be disabled.
minimodem --alsa: uses ALSA at runtime instead of the default PulseAudio.
2012-08-08 20:10:55 -07:00
Kamal Mostafa
95d7a87ce1
minimodem: configure --with-alsa for ALSA instead of Pulseaudio
2012-08-08 14:26:39 -07:00
Kamal Mostafa
7d8c62cf5e
configure: new opts --without-{pulseaudio,sndfile}
...
./configure --without-pulseaudio or --without-sndfile (but not both)
to preclude those dependencies.
Sources use config.h defines USE_PULSEAUDIO and USE_SNDFILE.
2012-08-06 13:14:26 -07:00
Kamal Mostafa
777b57dd3a
minimodem: do not do interactive signal handling with --tx --file
2011-07-15 20:37:13 -07:00
Kamal Mostafa
93405a3751
minimodem: default 1.5 stop bits for rtty only
2011-07-15 19:00:20 -07:00
Kamal Mostafa
2efe4bac19
minimodem: set reasonable default mark/space for high baud rates
2011-07-15 17:56:02 -07:00
Kamal Mostafa
7686acc38e
minimodem: transmit interactive zero latency; fix leader/trailer
2011-07-13 20:37:17 -07:00
Kamal Mostafa
9a85232c96
minimodem: --quiet
2011-07-08 18:08:52 -07:00
Kamal Mostafa
695c628427
minimodem: --auto-carrier off by default
...
No longer on by default for <= 300 baud.
2011-07-08 17:42:19 -07:00
Kamal Mostafa
633153916b
minimodem: --confidence param
2011-07-08 13:16:06 -07:00
Kamal Mostafa
7a5aea88df
minimodem: rate analysis fixes ("rate perfect")
...
adjust MIN_CONFIDENCE
2011-07-08 13:03:00 -07:00