williamp/osmocom-analog
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
746 Commits 1 Branch 0 Tags
d3a5d5c3c67c240ccb071ecc83755b0f84087647
Commit Graph

746 Commits

This Branch
This Branch
All Branches
Author SHA1 Message Date
Andreas Eversberg
fd3b4dae50 FSK modulator improvements 
1. Phase is now changed proportional to the time of the bit change, if
   it happens somewhere between samples. The amount of phase change per
   bit is now the same for all bits, no matter how many samples
   currently lay inside this bit.

2. IIR filter is removed, because it causes distortions. A cosine shape
   is now used to transit between phase change of F0 to F1 and vice
   versa. This limits the spectrum. This filter is optional.
 2022-12-16 12:43:19 +01:00
Andreas Eversberg
7609e98b8f Resampling filter can now be turned off 
Only linear filtering remains when off.
 2022-12-16 12:43:16 +01:00
Andreas Eversberg
3d18361d2e Removed obsolete hexdump function from DTMF decoder 2022-12-16 12:43:14 +01:00
Andreas Eversberg
5acdb94f10 Fixed a bug on datenklo's ioctrls 2022-12-16 12:43:11 +01:00
Andreas Eversberg
aadfd50a0f Osmo-CC: Change UPDATE to MODIFY message 
Naming it UPDATE was not a good idea.

Now this is renamed to MODIFY message, related to MNCC (GSM). It is used
to change media coding during a call. It allows new codec negotiation
using SDP protocol and/or changing RTP peer. Also useful for SIP.
 2022-12-16 12:43:09 +01:00
Andreas Eversberg
2110a0f111 osmo-cc: Add private pointer to codecs 2022-11-24 21:16:43 +01:00
Andreas Eversberg
791a1d79a9 osmo-cc: Set session to NULL, if no codec matches 
Applications will crash, due to use-after-free bug, if this is not done.
 2022-11-24 21:15:47 +01:00
Andreas Eversberg
616a5e2820 DCF77: Add weather info decoding and coding 2022-11-24 21:08:02 +01:00
Andreas Eversberg
5ae64a2712 AMPS: Fix compilation 2022-11-07 18:18:04 +01:00
Andreas Eversberg
508197e9a8 TACS: Corrected TACS power levels in help description 2022-11-07 18:18:00 +01:00
Andreas Eversberg
1eed20420e AMPS: Fixed caller ID transmission 2022-10-30 17:23:25 +01:00
Andreas Eversberg
a3835b001d AMPS: Minor fixes at DTX handling 2022-10-30 17:23:24 +01:00
Andreas Eversberg
8e67c3fda0 Golay/GSC paging support 2022-10-30 09:28:34 +01:00
Andreas Eversberg
ed0f8694f7 dejitter: Added timeout for interpolation 2022-10-30 09:24:35 +01:00
Andreas Eversberg
825f395e09 Move AMPS/TACS/JTACS into one source directory 2022-10-23 16:56:46 +02:00
Andreas Eversberg
376cef4fa5 Osmo-CC: Add marker bit support 2022-10-23 16:56:40 +02:00
Andreas Eversberg
5684c0a7de Osmo-CC: Add UPDATE messages 2022-10-23 16:56:37 +02:00
Andreas Eversberg
b60c844b4f DTMF: Now allows to give duration and pause for digit 
Also the dtmf encoder will return less samples, if the digit(+pause)
ends, so that the caller call set the next digit to play seamlessly.

A reset function allows to clear the decoder states, to prevent glitches
when re-attaching to an interrupted stream.
 2022-10-23 16:56:36 +02:00
Andreas Eversberg
a756ba8fd9 libsample: Add another function for converting between int16_t and sample_t 
Now we have speech level and 1mW (0 dBm) conversion functions
 2022-10-23 16:56:32 +02:00
Andreas Eversberg
486d6b3780 JTACS (Japanese Total Access Communication System) works now 
Tested with MT209 phone.
 2022-10-23 16:56:30 +02:00
Andreas Eversberg
2b7efedc48 Refactoring jitter buffer 
Features are:
 * Packet based buffer
 * Random in, first out
 * Adaptive delay compensation (voice)
 * Fixed delay (data, optionally MODEM/FAX)
 * Interpolation of missing frames
 * Any sample size
 2022-10-23 16:56:27 +02:00
Andreas Eversberg
4fc92eba45 Improved libsamplerate to allow size calculations 2022-09-17 20:50:14 +02:00
Andreas Eversberg
1d77952717 Zeitansage: Removed glitches of some sounds 2022-09-17 20:47:28 +02:00
Andreas Eversberg
a7a1ac7c5e TV: Add individual test image for selected color of color bar 2022-09-17 20:47:25 +02:00
Andreas Eversberg
26213d667a Fixed README 2022-09-15 07:23:37 +02:00
Andreas Eversberg
b3e00b5085 POCSAG: Minor fixes. 2022-09-15 07:23:37 +02:00
Andreas Eversberg
4e669ecf79 AMPS: Caller ID Support 
Support for sending caller ID for newer phones.
Currently does not work with older phones, they will abort.
 2022-09-10 21:19:18 +02:00
Andreas Eversberg
1a0813069f NMT: Minor changes 2022-07-31 20:15:22 +02:00
Andreas Eversberg
f906fcc708 Improved documents and layout for SIM and magnetic cards 2022-07-23 08:26:57 +02:00
Andreas Eversberg
89e3b89758 C-Netz: Improved RX speech quality and decoder debugging 2022-07-23 08:26:53 +02:00
Andreas Eversberg
059d4f25b1 FuVst: Removed unused scrambler dependency 2022-07-23 08:26:49 +02:00
Andreas Eversberg
8fd8205a6e C-Netz: Changed voice diversion back to 2.4 KHz 
Most phones use this deviation. C5 does not for some unknown reason.
 2022-07-23 08:26:48 +02:00
Andreas Eversberg
b94443e57a Osmo-CC: Minor 'cause conversion' fix 2022-07-23 08:26:45 +02:00
Andreas Eversberg
a34ffda422 Osmo-CC: Fixed routing in screen tables 2022-07-23 08:26:44 +02:00
Andreas Eversberg
5335795759 JTACS: Fixed channel allocation, but have no hardware to verify 2022-07-23 08:26:42 +02:00
Andreas Eversberg
c6149ed3b4 NMT: Fixes to 'additional info' and added clock (time) support 
- untested -
 2022-07-23 08:26:30 +02:00
Andreas Eversberg
f901eedd8e Osmo-CC: Fixed simple routing using screen option 2022-06-25 14:27:21 +02:00
Andreas Eversberg
5335a77e48 Osmo-CC: Option to remove remote peer, if given by application 2022-06-25 14:26:24 +02:00
Andreas Eversberg
334ead6908 Osmo-CC: Option to override interface name given by application 2022-06-25 14:23:16 +02:00
Andreas Eversberg
c3f29a3302 Osmo-CC: Minor compiler warning fix 2022-06-25 14:22:04 +02:00
Andreas Eversberg
f4aa9b79bb Osmo-CC: Minor compiler warning fixes 2022-06-19 06:51:49 +02:00
Andreas Eversberg
641ba0881f R2000: Show debugging for IDLE frames 
Suppress repeated IDLE frame
 2022-06-19 06:51:48 +02:00
Andreas Eversberg
181617aa81 NMT: Show debugging for IDLE frames 
Suppress repeated IDLE frame
 2022-06-19 06:51:45 +02:00
Andreas Eversberg
6f84314b93 AMPS: Show debugging for filler/system frames 
Show them only once when FOCC is enabled.
 2022-06-19 06:51:43 +02:00
Andreas Eversberg
253dfcc8bb C-Netz: Fix station list and selection 2022-06-19 06:51:40 +02:00
Andreas Eversberg
7cd3f85294 C-Netz: Show debugging for IDLE (LR and LMR) frames 
Suppress repeated IDLE frame
 2022-06-19 06:51:38 +02:00
Andreas Eversberg
ec286f3d94 C-Netz: Add options to change 'Meldeaufruf' timer and counter. 2022-06-19 06:51:35 +02:00
Andreas Eversberg
cb9c85adb5 C-Netz: Add capability of special tunnel base station (bahn-bs) 
Totally useless, if you don't have a train phone - don't you?
 2022-06-19 06:51:33 +02:00
Andreas Eversberg
26f4b3f711 C-Netz: Cleanup OgK slot allocation and polarity detection 
Now you can select between 1 and 8 slots per frame.
 2022-06-19 06:51:30 +02:00
Andreas Eversberg
4930da8e0c C-Netz: Add capability of non-standard OgK channel(s) 2022-06-19 06:51:28 +02:00