Commit Graph

63 Commits

Author SHA1 Message Date
dennis.sheirer
e61c3a891c Memory/CPU performance improvement and Audio/Mixer source restructuring
Converted to use float primitives and to keep samples in buffer format until the sample rate is decimated to 48kHz.  
Added new non-recursive, CIC decimation filter -- untested

Updated sound card/mixer input source management.  Now testing for mono/stereo support for each card and limiting channel choices accordingly.  Separated the mixersource into a ComplexMixer and and SimplexMixerSource.  The ComplexMixer is used for sound card based tuners like the funcube.  The SimplexMixerSource is used for demodulated sound card inputs.

Interfaces for sample handling - standardized on using 'Complex' to indicate I/Q samples and 'Simplex' to indicate demodulated float samples.  The processing chain now accepts either a decimated (48k) list of complex samples from a tuner channel source, or a 48k simplex buffer (array of demodulated float samples).

Resolved issue with HackRF tuner not applying tuner configuration information.
2014-10-26 10:11:30 +00:00
dennis.sheirer
61ecb5abf2 Adds an AM Demodulator to the list of available decoders. 2014-10-11 18:00:49 +00:00
dennis.sheirer
550aed79d4 Changed FrequencyChangeListener interface to an event so that I could describe what event was causing the frequency change and to broadcast frequency and sample rate error values.
R820T - added a couple more sample rate settings to the enum and modified the periodic sample rate info logger.
2014-09-27 09:46:18 +00:00
dennis.sheirer
e441ebf0c9 Changed to slf4j logging framework
Enhanced error handling/logging in RTL2832 eeprom device descriptor read method for troubleshooting issue present in some R820T tuners.
2014-09-20 10:04:04 +00:00
dennis.sheirer
ad456d81a3 Updated Call Event handling/display for all decoders and updated channel display values for all decoders.
- Call events now show start-stop timestamps.  (or START-In Progress if call is ongoing )
 - Call start/stop events are now on the same event line.
 - Channel panels now display site and/or channel info
 - LTR call events are limited to CALLs on the current LCN, in order to cut down on false call events resulting from noise.
 - Passport display channels now show site/channel.
 - Changed default window used by the DFTProcessor to Cosine, which doesn't have as much FFT bin leakage.
2014-09-15 00:42:20 +00:00
dennis.sheirer
0f43c7ed22 Automatic Frequency Control enhancement. Provides default AFC and ability to disable in the Decoder tab of each channel. Spectral display includes visual indicators of frequency center (grey) and current AFC offset (yellow). 2014-09-11 22:46:05 +00:00
dennis.sheirer
4e0fd9b7b0 Channel Spectral Display
- Adds Channel Spectrum tab to display FFT of the audio output of the currently selected channel
 - Upgrades to JTransforms 3.0 FFT library
 - Adds three new context menus to main and channel spectral displays:
   -- Baseline - affects the vertical rendering baseline of the FFT
   -- Amplification - affects the vertical height of each FFT bin
   -- Averaging - affects how many FFTs are averaged to produce the display
2014-09-06 14:58:05 +00:00
dennis.sheirer
44faeb9351 IQ recording file playback partial checkin.
NOTE: only the gui components and settings handling have been implemented.  Actual recording playback is not yet implemented.

Partial checkin of initial P25 decoder development.  

NOTE: P25 decoder is not yet functional.
2014-08-02 15:16:12 +00:00
dennis.sheirer
35a2cebe03 Converted frequency to long primitive type (from integer) in anticipation of HackRF support which requires frequencies greater than 2.147 GHz, which is the max hertz value that can be represented by an integer primitive. 2014-07-08 14:40:11 +00:00
dennis.sheirer
cdf8c730bc R820T tuner controller - resolved issue with frequency controller not maintaining sync with actual tuned frequency. 2014-07-03 14:24:14 +00:00
dennis.sheirer
f70fca55b7 Partial check-in of R820T tuner controller. Tuning is not yet functional. 2014-05-16 20:13:41 +00:00
dennis.sheirer
27b9a741a7 Removed debug logging. 2014-05-02 12:42:36 +00:00
dennis.sheirer
3dfedcf8d1 Initial code check in continued 2014-04-26 19:48:24 +00:00