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166 commits 5 branches 55 tags 11 MiB
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107 commits

Author SHA1 Message Date
Ahmet Inan
e940f8b3b6 added PD180 support and made image size more flexible 2015-02-02 00:04:40 +01:00
Ahmet Inan
805789bfa6 its 5% not 0.5% 2015-01-28 22:47:50 +01:00
Ahmet Inan
0c1a728c34 only scottie needs the extrawurst 2015-01-28 22:20:07 +01:00
Ahmet Inan
c2c9bd8599 allow sync pulse to be up to 5% of scan line length too early or too late 2015-01-28 22:04:01 +01:00
Ahmet Inan
04daf05a7a fixed scottie extrawurst 2015-01-28 21:30:19 +01:00
Ahmet Inan
c4520891c5 be more picky about sync pulse position 
ignore early sync pulses 5 times, then reset.
should be more robust against spurious sync pulses caused by noise or crosstalk
 2015-01-27 23:01:31 +01:00
Ahmet Inan
075b6c6d7d finish up vis sequence before returning code 
instead of returning too early ignoring stop bit: simply ignore value of stop bit
 2015-01-27 22:32:09 +01:00
Ahmet Inan
61f8534312 added simple moving average and used in scanline estimator 2015-01-23 21:41:42 +01:00
Ahmet Inan
9bbca4bd6d added save and clear image buttons 2015-01-17 12:30:09 +01:00
Ahmet Inan
0945e8b031 replaced if's with a simpler switch in radix2 2015-01-16 18:06:03 +01:00
Ahmet Inan
c0f911f1e9 fixed bug introduced with "replaced radix2 input with float" 
it really sucks not having a complex data type .. damn you c99
 2015-01-15 16:23:03 +01:00
Ahmet Inan
5fc7dfc458 fade spectrum slower 2015-01-15 11:42:44 +01:00
Ahmet Inan
42aaf6b4cf draw lines between points in spectrum 2015-01-15 11:04:41 +01:00
Ahmet Inan
1c3f90aef0 added spectrum view to present spectrogram 2015-01-15 00:32:39 +01:00
Ahmet Inan
c42b2cba47 renamed variables for normalization, export float instead of int volume 2015-01-14 20:35:34 +01:00
Ahmet Inan
ada2422531 added simple VU Meter 2015-01-14 18:30:00 +01:00
Ahmet Inan
98a9ee7f1f replaced radix2 input with float 2015-01-14 11:28:51 +01:00
Ahmet Inan
9b428ce8d4 added toggle for analyzer 2015-01-13 23:37:54 +01:00
Ahmet Inan
6fd48f2815 do rms compression again .. removed analyzer normalization 
it makes the spectrum visualization less colorful, but a lot clearer.
 2015-01-13 20:26:27 +01:00
Ahmet Inan
23cbc53650 fixed bug introduced with "made cic cascade order flexible" 2015-01-13 19:59:11 +01:00
Ahmet Inan
409edeb489 made cic cascade order flexible, normalize comb output from cascade gain 2015-01-10 11:31:16 +01:00
Ahmet Inan
968fea3bed made analyzer initialization nicer 2015-01-10 10:13:26 +01:00
Ahmet Inan
cb489f426d increased stft window to 2048 2015-01-09 22:09:35 +01:00
Ahmet Inan
3c9d5b7da0 reduced stft window size to 1024, used ring buffer to slide dft 2015-01-09 18:31:01 +01:00
Ahmet Inan
55da5a9d77 do rounding to nearest in freq_marker 2015-01-09 18:12:23 +01:00
Ahmet Inan
923baf5846 added debug switch between boxcar and cic filtering 2015-01-09 16:34:18 +01:00
Ahmet Inan
9dcbdbdc69 use cic filter for decimation in analyzer 2015-01-08 22:18:50 +01:00
Ahmet Inan
659a644362 give the raw sample to the analyzer 2015-01-08 16:11:29 +01:00
Ahmet Inan
f0816a8426 added frequency markers for 1100, 1300, 1500 and 2300 Hz 2015-01-08 15:48:00 +01:00
Ahmet Inan
749972d0e5 fixed color gradient, removed and added debug code 2015-01-08 15:22:37 +01:00
Ahmet Inan
88240631d3 reorganized visualisation value generation 2015-01-08 14:32:35 +01:00
Ahmet Inan
72bc00fc62 fixed rainbow 2015-01-08 14:27:32 +01:00
Ahmet Inan
0026a26897 do decimation by 7 using boxcar filter :) 2015-01-07 21:04:03 +01:00
Ahmet Inan
e1b68b4e59 normalize using maximum of all bins 2015-01-07 21:02:34 +01:00
Ahmet Inan
fd7326e24a maybe linear spectrum output is a better idea .. 2015-01-07 18:32:34 +01:00
Ahmet Inan
bd0e98ba75 fixed stft code generator 2015-01-07 16:22:33 +01:00
Ahmet Inan
b77e9c1b3d WIP: added spectrum analyzer 
there is something fishy going on :(
 2015-01-06 21:14:47 +01:00
Ahmet Inan
3dfa1b4c86 added raw, toggles for debug and autodetect mode 
made debug mode much more useful
 2015-01-04 17:47:28 +01:00
Ahmet Inan
bd7ec1f0bc improved timing down to +-300ppm samples per line 
- used milliseconds instead of seconds for timing
- did summations in milliseconds till end
- did rounding instead of truncation at critical places
 2015-01-03 00:36:05 +01:00
Ahmet Inan
80eabf5acb normalize amplitude from avg absolute amplitude 2015-01-02 13:25:36 +01:00
Ahmet Inan
3974468399 reset mismatch counter on parity correction 2015-01-02 12:30:44 +01:00
Ahmet Inan
15b364fe72 wrap vpos instead of resetting to 0 on max 2015-01-02 12:25:54 +01:00
Ahmet Inan
7a33c225bd reset mismatch counter on begin of image 2015-01-02 12:18:04 +01:00
Ahmet Inan
8263145a50 fixed overflow and sync timeout handling in robot36 decoder 2015-01-02 12:10:32 +01:00
Ahmet Inan
8421a984e7 let decoders decide about vpos 2015-01-01 19:24:55 +01:00
Ahmet Inan
63e949332d do correct sync extrapolation 2015-01-01 18:57:01 +01:00
Ahmet Inan
a69b4089f5 WIP: replaced linear with much more flexible circular buffer 2015-01-01 17:06:48 +01:00
Ahmet Inan
fbffdf3d6d reduced "grey" area to help with noise immunity 2014-12-17 17:02:20 +01:00
Ahmet Inan
3a1e0d6201 fixed crash in debug mode 2014-12-14 17:37:14 +01:00
Ahmet Inan
0bd958b4d7 increased leader timeout tolerance 2014-12-14 15:03:08 +01:00