Charles J. Cliffe
82b6b67f3c
Re-connect scope to demodulator output data
2014-11-16 19:14:15 -05:00
Charles J. Cliffe
1950c3109a
Balanced thread performance w/ CPU usage
...
Seems smooth and responsive now.
2014-11-16 19:02:40 -05:00
Charles J. Cliffe
739854cd7f
Demodulator and Audio threads working
...
Data now flows from SDR IQ Thread -> Demodulator Thread -> Audio Thread.
Seems to have added a significant audio delay though..
2014-11-16 17:33:54 -05:00
Charles J. Cliffe
2a34fc9cf9
New demodulator thread code
2014-11-16 16:51:45 -05:00
Charles J. Cliffe
16a9add9ef
New threads partly implemented
...
Mid transition from 1 to 3 threads: SDR IQ, Demod and Audio separated,
AppFrame routes.
2014-11-16 16:50:37 -05:00
Charles J. Cliffe
2e5bdc2646
Separate visual components Scope/Spectrum/Waterfall
...
Each now on it's own canvas with shared GL Context
2014-11-15 23:41:41 -05:00
Charles J. Cliffe
541ab5614c
Separate Primary GL Context and visuals canvas
...
Can now create multiple GL canvases with shared context
2014-11-12 21:55:11 -05:00
Charles J. Cliffe
02cd0f6516
FM Demodulator fixes
...
was an implicit float to int in the primary filter cutoff value causing
distortion.
2014-11-12 19:09:22 -05:00
Charles J. Cliffe
adc6fcce85
Waterfall tweaking, automatic range adjustment
2014-11-12 00:28:20 -05:00
Charles J. Cliffe
810533750f
waterfall optimize, fm demod audio filtering
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Moved waterfall increment into rendering to reduce audio processing
impact.
Added another test filter and resample stage to FM demod experiment to
clean up audio and remove high pitch on stereo channels until it can be
demodulated.
2014-11-11 21:42:18 -05:00
Charles J. Cliffe
86dadb8f2c
Waterfall now being displayed 2048x512
...
Uses indexed color scheme, FFT image is byte array
2014-11-11 20:25:16 -05:00
Charles J. Cliffe
fe2e56231d
gradient util, started waterfall implementation
2014-11-11 08:11:12 -05:00
Charles J. Cliffe
b270379361
Honor PA_RECOMMENDED_OUTPUT_DEVICE on Win32
...
PortAudio defaults to output on my Virtual Cable INPUT #A?? -- strange
but this gets around it neatly for now.
2014-11-09 21:21:11 -05:00
Charles J. Cliffe
9913629a7e
Use first available RTL device
2014-11-09 20:55:21 -05:00
Charles J. Cliffe
a78a862cba
Moved demodulation code into it's own class
...
Preparing to make it more dynamic, able to tune multiple frequencies at
once and support remaining demodulation modes (AM, USB, LSB)
2014-11-09 18:12:02 -05:00
Charles J. Cliffe
14d7e431bd
PortAudio adjustments for OSX
...
Seems to be some sort of audio init race condition, intermittent crash
on startup
2014-11-09 05:18:33 -05:00
Charles J. Cliffe
b70b659a5f
Removed OpenAL and now using PortAudio
2014-11-09 04:38:33 -05:00
Charles J. Cliffe
c3c204bc04
Pitch issue fixed, OpenAL weirdness
...
Might be time to retire OpenAL -- is behaving strangely on output
stream..
2014-11-08 20:50:28 -05:00
Charles J. Cliffe
5554c92199
minor variable changes
...
demodulated frequency still shifted by about half?
2014-11-08 18:48:03 -05:00
Charles J. Cliffe
6c1ec6eba2
new demod test
...
working but frequency seems to be shifted?
2014-11-08 17:08:00 -05:00
Charles J. Cliffe
bd7d748e58
Experimenting with FM demod options
2014-11-07 13:51:43 -05:00
Charles J. Cliffe
44e7744855
filtering / fm demod experiments
2014-11-07 01:47:57 -05:00
Charles J. Cliffe
b6a658b819
more liquid dsp experiments
2014-11-07 00:27:06 -05:00
Charles J. Cliffe
428525e807
experimental liquid-dsp testing
2014-11-06 21:30:47 -05:00
Charles J. Cliffe
2092505e20
Adding buffer and testing demod functionality
2014-11-06 01:33:59 -05:00
Charles J. Cliffe
e0344d8efc
Now playing FM through OpenAL!
...
great success!
2014-11-05 21:05:56 -05:00
Charles J. Cliffe
f071b2b025
Added OpenAL /w audio init test
2014-11-05 19:10:18 -05:00
Charles J. Cliffe
d91cffbe58
Now plotting spectrum and demodulated FM
2014-11-05 18:12:42 -05:00
Charles J. Cliffe
39afec2172
testing fm demodulation
2014-11-04 23:05:04 -05:00
Charles J. Cliffe
f22a929828
Started demodulator class based on rtl_fm.c
2014-11-04 21:55:20 -05:00
Charles J. Cliffe
7eae5517fa
remove example code
2014-11-04 19:54:00 -05:00
Charles J. Cliffe
a8f1a87505
Can now control SDRThread freq. via thread task
...
Basic left/right keys bound for shifting frequency test.
2014-11-04 19:52:11 -05:00
Charles J. Cliffe
9896808b22
Clean-up / re-factor
...
thread queue and task handler compiling and program functional
2014-11-04 18:39:08 -05:00
Charles J. Cliffe
8dee90cd63
Starting work on threading model, incomplete
...
Includes experimental averaging of spectrum
2014-11-04 17:25:04 -05:00
Charles J. Cliffe
1cd8565fb3
Experiment to remove DC / other spikes
...
Seemed logical to use the repeating parts of the forward/back FFT
results to overlap and cancel out spikes -- seems to work?
2014-10-31 20:41:49 -04:00
Charles J. Cliffe
c4099cb690
Re-align spectrum view
...
DC spike now showing?
2014-10-31 19:10:53 -04:00
Charles J. Cliffe
eb4e10140a
Now showing 2.5MHz bandwidth over FM ranges
...
Moves frequency back/forth over the FM range
2014-10-31 01:37:01 -04:00
Charles J. Cliffe
7fe286cf0c
Now plotting IQ spectrum
...
seems to only be showing half the bandwidth..
2014-10-30 22:51:33 -04:00
Charles J. Cliffe
2ef8010438
Rendering rtl-sdr I/Q data to the GL canvas
2014-10-28 22:59:17 -04:00
Charles J. Cliffe
23f8c6a197
Now passing IQ data from SDR Thread to AppFrame
2014-10-28 21:39:59 -04:00
Charles J. Cliffe
0e25cbcc1a
OSX now compiling and working
2014-10-27 23:52:25 -04:00
Charles J. Cliffe
5f0bc4f4f8
fix issue with SDRThread logging
2014-10-27 21:26:12 -04:00
Charles J. Cliffe
d27d91c1ef
Code re-factor / cleanup
...
GL Window now ready to draw signal lines
2014-10-27 21:22:29 -04:00
Charles J. Cliffe
c2a37e7622
Initial experiment /w wxWidgets opengl view and sdr sampling.
...
Includes working rtl-sdr sampling thread test.
2014-10-27 20:05:40 -04:00
