Andreas Eversberg
b613123291
Open sound device for capture or playback only, if full duplex is not required
2024-03-30 23:28:13 +01:00
Andreas Eversberg
a20637825a
Audio rework, new jitter buffer
...
Jitter buffer is now based on packets, not on samples. The frames are
dejittered in received form. After reading from jitter buffer, they are
decoded in correct order. If a frame is missing, it is concealed by
repeating audio.
2024-03-30 23:28:05 +01:00
Andreas Eversberg
d30d662307
Avoid large buffer on stack, to prevent stack overflows
...
This affectes:
* demodulation in libfsk
* audio processing in libmobile
2024-03-25 13:00:06 +01:00
Andreas Eversberg
3158c48365
Move from local to external osmo* libraries
...
src/libdebug -> libosmocore
src/libselect -> libosmocore
src/libtimer -> libosmocore
src/libosmocc -> libosmo-cc
src/libg711 -> libosmo-cc
2024-02-18 16:23:29 +01:00
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
86d4523cc7
Correctly show channel frequencies in spectrum view when swapping SDR links
2021-11-07 20:00:43 +01:00
Andreas Eversberg
6fa74a1296
Refactor global variables for signal processing
...
These are:
device, sample rate, buffer, latency
Called now:
dsp_device, dsp_samplerate, dsp_buffer, dsp_latency
Call audio device:
call_device, call_samplerate, call_buffer
2021-10-24 06:25:10 +02:00
Martin Hauke
a07764f0d9
Fixed typos in cli output and source code comments
2021-01-03 09:57:03 +01:00
Andreas Eversberg
8929b332cb
Sound: Recover broken audio connection by closing and reopening the device
2020-10-29 08:00:27 +01:00
Andreas Eversberg
ed72e29dbb
Add tx-gain option
2020-10-29 07:39:27 +01:00
Andreas Eversberg
49c4793106
Add option (global flag) to disable check of channel numbers at sender.c
...
This is required for channels that do not belog to actual radio transceivers.
2020-10-29 07:38:28 +01:00
Andreas Eversberg
150a77b69d
Add support for AM to libmobile and libsdr
2019-12-08 17:26:44 +01:00
Andreas Eversberg
c2f14834e5
Rename dbm0 (level) to speech (level)
...
In mobile communications we use speech level instead of milliwatts.
The deviation (FM) is always based on speech level, not on 1 milliwatt.
2019-12-08 17:24:36 +01:00
Andreas Eversberg
23bb88ef6e
Describe if audio device exists, but does not support both directions
2019-11-29 15:58:32 +01:00
Andreas Eversberg
d6579c1244
Allow giving alphanumeric channels (Prepare for IMTS)
2019-08-26 21:10:20 +02:00
Andreas Eversberg
37406db7e3
Minimum frequency must be 8000 Hz
2019-05-30 18:19:06 +02:00
Andreas Eversberg
9af2b6e007
Improved wave playback
2018-02-16 15:54:40 +01:00
Andreas Eversberg
3a5fa8837c
Improved emphasis
2018-02-16 15:54:39 +01:00
Andreas Eversberg
6277753574
Minor debug message corrections
2018-02-15 08:00:18 +01:00
Andreas Eversberg
4cc33c5b0d
Make sound card support (Alsa) optional
2018-02-15 08:00:15 +01:00
Andreas Eversberg
0b129d3c7f
libdisplay: Removing dependency from libmobile
2018-02-15 08:00:14 +01:00
Andreas Eversberg
1a341f6b4e
Restructure: Move debug from common code to 'libdebug'
2017-12-03 08:45:58 +01:00
Andreas Eversberg
ab59a26a51
Restructure: Move mobile from common code to 'libmobile'
2017-12-03 08:45:54 +01:00