williamp/osmocom-analog
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
267 Commits 1 Branch 0 Tags
683078a7a01903c9bcbac196148f132fc00be6ad
Commit Graph

112 Commits

Author SHA1 Message Date
Andreas Eversberg
683078a7a0 SDR: Spectrum display will not scale FFT result 
Instead the greatest possible width that will fit into the window will
be used. This width is 2 to the power of N.
 2017-05-17 20:06:46 +02:00
Andreas Eversberg
4d10ee7c82 No "sdr" audio device option required anymore (when using SDR) 2017-05-17 20:06:42 +02:00
Andreas Eversberg
ca10048e5c Rename filter -> iir_filter (file name and instance name) 
This is useful when using fir_filter in the future.
 2017-05-15 21:46:32 +02:00
Andreas Eversberg
d03443c4f1 SDR: Added SoapySDR's compiler flags to common/Makefile 2017-05-15 21:46:30 +02:00
Andreas Eversberg
c04d046210 SDR: Fixed SoapySDR's arguments parsing 2017-05-15 21:46:30 +02:00
Andreas Eversberg
fbdb9ece01 SDR: Allow direct IQ TX and RX instead of fm modulating a list of channels 
This is performed by reading and writing IQ data to "sample" pointer with
channel number set to 0.
 2017-05-15 21:46:29 +02:00
Andreas Eversberg
65694f3b80 SDR: disable TX or RX by setting TX or RX frequency to 0 
This way it is possible to use SDR simplex
 2017-05-15 21:46:29 +02:00
Andreas Eversberg
6e0e0c9ce8 fixup Rework on audio buffer management 2017-05-15 21:46:28 +02:00
Andreas Eversberg
9dda9e1efc SDR: Add option to set IF bandwidth. If not defined, sampling rate is used. 2017-05-15 21:46:27 +02:00
Andreas Eversberg
1445ca2fac SDR: Add option to send (previously recorded) IQ data instead of TX data 2017-05-15 21:46:26 +02:00
Andreas Eversberg
8e0d7d2513 samplerate.c: Allow transcoding to lower sample rate other than 8000 Hz 2017-03-04 16:52:20 +01:00
Andreas Eversberg
3fc4fc54be main_common: Move init and cleanup function to main function 2017-03-04 07:12:12 +01:00
Andreas Eversberg
4201717f36 Rework on audio buffer management 
Use function to get samples to be sent to fill audio buffers to a
level. This replaces the function that only shows how much data
is in the buffer.

This way the function itself can control how much data will be
sent.
 2017-03-04 06:35:38 +01:00
Andreas Eversberg
2e1999b1ee Start streaming of sound/SDR just before main loop 
This prevents buffer overflow during init/creation processes
 2017-02-25 07:09:53 +01:00
Andreas Eversberg
04fd1ddcea Use thread to record and playback wave files without blocking 2017-02-25 06:29:09 +01:00
Andreas Eversberg
438ce08add SoapySDR support 
There is no time stamp handling. It is just TX'ing in advance and
synchronous to received RX rate.
 2017-02-18 21:02:55 +01:00
Andreas Eversberg
290b365d67 SDR: Move FM modulation algorithms to a seperate file 2017-02-18 21:02:51 +01:00
Andreas Eversberg
4c0f8e7e95 Rework of sample rate conversion by using linear interpolation 2017-02-18 21:02:51 +01:00
Andreas Eversberg
47f74b38ce SDR transmits with full amplitude 2017-02-18 21:02:50 +01:00
Andreas Eversberg
6a3cfd608e Add ascii-art spectrum analyzer for SDR support 2017-02-18 21:02:49 +01:00
Andreas Eversberg
5026e161aa Open audio device for call (headset) after everything is prepared 
It is not allowed to stall after trigger reading of audio device.
 2017-02-18 21:01:18 +01:00
Andreas Eversberg
f5e9a97c31 --rx-gain option works now only with sound card 2017-02-18 21:01:16 +01:00
Andreas Eversberg
2b4f5bb228 Minor fix in help output 2017-02-18 21:01:15 +01:00
Andreas Eversberg
7e45f556ce Correcting all levels and move all remaining integer samples to sample_t 
The leves are based on the standards of each mobile network. They
are adjusted to the specified frequency deviation now.
 2017-02-18 21:01:13 +01:00
Andreas Eversberg
bd7ccc5fa0 Add global DC-Filter and remove all individual DC-Filters 2017-02-18 21:01:12 +01:00
Andreas Eversberg
71e556e7ff Work on emphasis filter: Neutral @ 1000 Hz; Use filter before de-emphasis 2017-02-18 21:01:11 +01:00
Andreas Eversberg
b3fd53b165 Test filter uses a dB graph to show the response graphically 2017-02-18 21:01:10 +01:00
Andreas Eversberg
7ea3bc188d Move samples of int16_t format to sample_t, that is of type double 
This prepares the correction of all levels
 2017-02-18 21:01:08 +01:00
Andreas Eversberg
23a42aeb2c Fixed calculation of elapsed UHD RX time stamp 
Now rates above 1000 RX frames per second works. The bug hit when there
were more than one frame received during one function call. This happens
if the frame rate is above the main loop rate of 1000 frames per second.
(default)
 2017-02-18 21:01:05 +01:00
Andreas Eversberg
ac0da3f76e Filter improvement: LP and HP filters, added test function 
The -3 dB level at cut-off frequency is now maintained for multiple
iterations.
 2017-02-18 21:01:04 +01:00
Andreas Eversberg
799b96c801 Fixed sleep interval in main loop 
The elapsed time is calculated, so that it is removed from the sleep
time. This way the loop interval matches the given target.
 2017-02-18 21:01:03 +01:00
Andreas Eversberg
a7e47f83d7 Fixed paging channel switching of B-Netz 
Now the calling channel is switched correctly.

A global parameter is used to select how paging is performed.
 2017-02-18 21:01:03 +01:00
Andreas Eversberg
21c5c3195d Plot IQ data as red points on display, if overdriven (vector length >= 1.0) 2017-02-18 21:01:01 +01:00
Andreas Eversberg
c0e30d35d6 Use individual sample rate and setting for call device (headset) 2017-02-18 21:01:00 +01:00
Andreas Eversberg
19b396ab4d Wave recording and playback now uses multi channels 2017-02-18 21:00:59 +01:00
Andreas Eversberg
2d8d7e62c1 Use global init/cleanup function 2017-02-18 21:00:58 +01:00
Andreas Eversberg
272ebeb0ae SDR: Minor fixes 2017-02-18 21:00:56 +01:00
Andreas Eversberg
a5fd375237 Fixed typos 2017-02-18 21:00:55 +01:00
Andreas Eversberg
d28467c125 SDR: Display IQ data as a plot using 'q' key 2017-02-18 21:00:53 +01:00
Andreas Eversberg
8b9277615d Neu structure for the paging process (B-Netz) 
Paging tones are not created within sound_alsa.c
The audio API is now responsible to switch to paging channel.
In case of SDR, the sdr.c will switch frequency offset.
 2017-02-18 21:00:50 +01:00
Andreas Eversberg
57993e3e48 Support for UHD SDR interface 2017-02-18 21:00:49 +01:00
Andreas Eversberg
b30b61282c Generic SDR support 2017-02-18 21:00:48 +01:00
Andreas Eversberg
c5cf88ce57 Prepare for SDR: Add bandwidth and deviation info to sender instance 2017-02-18 21:00:47 +01:00
Andreas Eversberg
9ff8c3bb25 Rework on audio interface 
Sound instance is now called audio instance and uses funcation pointers.
This gives a clean interface to be exchanged with other technologies,
linke SDR.
 2017-02-18 21:00:45 +01:00
Andreas Eversberg
d54d3ac265 prepare audio handling for multi carrier SDR 2017-01-07 06:28:24 +01:00
Andreas Eversberg
713b1ab118 Rename functions and structure of biquad lowpass filter 2017-01-07 06:28:23 +01:00
Andreas Eversberg
e1cbb1649a Fixed memory leak in PDEBUG(). Thanx to valgrind finding that! 2017-01-05 08:36:52 +01:00
Andreas Eversberg
16e1e842b9 A-Netz: Don't allow emphasis, since it is not used with A-Netz 2017-01-02 10:16:49 +01:00
Andreas Eversberg
d47853201c common code: Update call console only when it changes or after debug line 2016-12-11 14:21:22 +01:00
Andreas Eversberg
3400f555fe Add common function to give hotkey help 
* Key to dial and hangup
* Key to display wave form
 2016-12-09 16:42:38 +01:00