ce86f62b11
work on docs
2016-07-24 12:31:06 +02:00
b3b42e8bc4
Cleanup warnings at autoconfig files
2016-07-24 12:31:06 +02:00
a6bd841247
NMT: Various fixes for SMS support
2016-07-24 12:31:05 +02:00
3ef9ef88bd
B-Netz: Compiler switch to generate a dial sequence (for testing)
2016-07-24 12:30:56 +02:00
2137db0e01
NMT: Autoanswer for SMS/DMS calls
2016-07-09 15:16:17 +02:00
e7fa08b6df
NMT / SMS: Short Message Service support
2016-07-09 15:16:16 +02:00
64c829909b
NMT / DMS: User data facility support (required for SMS)
2016-07-09 11:27:24 +02:00
62b3712ce5
common code: Check and ignore events without callref set
2016-07-09 11:27:02 +02:00
f39ee2f15a
common code: Add support for main loop handler
2016-07-09 11:27:02 +02:00
26ab26db48
minor fix at MNCC socket
2016-07-09 11:27:02 +02:00
44ebf1616a
work on docs
2016-07-07 16:25:55 +02:00
ab9aba1a84
B-Netz: Reply the station ID correctly
...
It must be replied right after it has been received the first time.
It does not matter if this happens a bit later, even a second later.
Thanx to Hans Wigger for providing recording from his B-Netz tester to
figure this out.
2016-07-06 16:19:01 +02:00
54266a9937
Minor fixup to .gitignore: ignore test_compandor
2016-07-06 16:18:51 +02:00
f3fd01ebcd
ALSA code: Fixed corrupted sample at the end of a read
...
The last sample may get corrupted. It seems that this depends on the
card that is used. To fix this, the snd_pcm_avail is checked and
one sample less than available is read using snd_pcm_readi. This
sample remains in RX buffer until next read. Then it is not corrupted.
2016-07-02 08:04:43 +02:00
4719be95bd
work on docs
2016-07-02 08:01:34 +02:00
2ee51022f4
Rename 'compander' to 'compandor'
2016-06-20 19:37:56 +02:00
86daa5a64a
AMPS: Add option to use the BUSY/IDLE bit on FOCC
2016-06-20 17:16:46 +02:00
76f6285846
AMPS: Show round trip delay of Filler frames in loopback mode
2016-06-20 17:15:42 +02:00
d851c37eac
common code: Release MNCC call 30 seconds after listening to announcement
2016-06-19 17:46:56 +02:00
b45b0c6bac
common code: Minor fix in main loop
2016-06-19 17:43:48 +02:00
f87e36fa47
AMPS: Detect difference between paging response and call response
...
Release call, if paging response was received, after call from fixed
network has already been released.
2016-06-19 17:41:42 +02:00
2b61a2ca4a
Work on docs
2016-06-19 11:09:03 +02:00
673aa74e6c
AMPS: Various minor fixes
2016-06-19 11:03:59 +02:00
4d52f955b3
common code: Add processing interval option to decrese CPU usage
2016-06-18 19:33:08 +02:00
e10898c1e8
C-Netz: Minor cosmetic fixes
2016-06-18 08:05:18 +02:00
d2c4ca4fa9
Implementation of Advanced Mobile Phone Service (AMPS)
2016-06-17 17:03:29 +02:00
7d5d3da8d3
Add function to display wave form from input/loop
...
Use 'w' to toggle display.
Move terminal input processing and main loop to main_common.c
2016-06-17 17:03:28 +02:00
4e0e13cb2d
work on docs
2016-06-17 17:03:27 +02:00
1d20119d85
common code: Call control allows to re-dial after disconnect
...
No hangup key required before that anymore.
2016-06-12 16:16:37 +02:00
7cfd11eb17
common code: Add feature to select debug category rather than showing all
2016-06-12 16:14:29 +02:00
051cc81b13
C-Netz: Move transaction routines to seperate file
2016-06-12 16:11:20 +02:00
26593ed034
NMT: fix minor bug
2016-06-12 16:11:20 +02:00
4d22b11855
common code: Add debug #define for capture generated singal
...
Used for fundamental debugging of encoded signal
2016-06-12 16:11:20 +02:00
c933250685
Add dsp mode change fuction to A and B Netz, fixed NMT
2016-06-12 16:11:20 +02:00
997f8eda43
B-Netz: Add timer for switching back from calling channel
...
The timer ensures that the paging sequence is sent out by sound card before
switching back to traffic channel
2016-05-29 17:17:49 +02:00
1ceb3026dd
Fixed link problem with alsa lib
...
Thanx to Martin for pointing to this problem.
2016-05-16 18:41:21 +02:00
90dbc0cbd7
C-Netz: Debug fixes
2016-05-15 20:44:07 +02:00
50136d7e8a
NMT: Typo in channel list
2016-05-15 20:43:58 +02:00
e9640c0cd8
C-Netz: Fix TX polarity selection
2016-05-15 20:43:49 +02:00
9ecb87f3e6
Fixing station ID command line parameter
2016-05-15 20:43:38 +02:00
7aa2445b47
Move amplitude (level) debugging to debug.c
2016-05-15 20:37:06 +02:00
adc3270dc0
Acknowledgements
2016-05-13 20:44:47 +02:00
60d9a7b496
C-Netz: Advice about requirement of emphasis done by software
2016-05-13 19:23:43 +02:00
c2cfce2373
wip: docs
2016-05-13 09:37:03 +02:00
46fa72894e
C-Netz: Calibration/fix processing of tone levels on TX and RX side
...
FSK and compander levels are adjusted.
Eliminate offsets between subsequent speech chunks. This is done by
high-pass filter. An offset is not passed to the filter.
Do correct audio processing chain:
time compress -> compressor -> scrambler / pre-emphasis -> TX
RX -> de-scrambler / de-emphasis -> expander -> time expand
2016-05-13 09:37:03 +02:00
5a9c9c7401
C-Netz: Send 5280 Hz test tone on idle speech channel
2016-05-13 09:37:03 +02:00
bbab972b51
NMT: Fixup paging on other channel
2016-05-13 09:37:03 +02:00
69ccdb99b5
NMT: Calibration of tone levels on TX and RX side
2016-05-13 09:37:03 +02:00
27e8b03df5
Fixup typo on jitter code
2016-05-13 09:37:02 +02:00
42eefe90bf
common code: Fixed de-emphasis by adding high pass filter
...
This high-pass filter filters out DC and frequencies below 300 Hz.
Now de-emphases will not cause low frequencies to saturate audio level
range or cause too high levels on low frequencies.
2016-05-13 09:37:02 +02:00
Andreas Eversberg