Andreas Eversberg
57ba648ac4
C-Netz: Add tiny database to track if phones are online
...
Reject calls, if not online.
Use an interval to check if the phones are still online.
2016-05-08 15:53:00 +02:00
Andreas Eversberg
bae12156a2
common code: Add input gain option
2016-05-08 15:49:45 +02:00
Andreas Eversberg
7434e21dc2
Multi transceiver support
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This can be multiple transceivers on multiple sound cards.
Two transceivers can be bundled on one sound device as well, using both channels.
2016-05-08 15:48:13 +02:00
Andreas Eversberg
28e7f1e9d1
common code: Remove DC level before using Goertzel filter
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A DC level degrades the quality of the filtered result
2016-05-01 15:15:19 +02:00
Andreas Eversberg
0c99848120
common code: Make preemphasis 0 dB @ 1000 Hz
2016-05-01 15:14:57 +02:00
Andreas Eversberg
16acdbf59d
Implementation of C-Netz (German mobile telephone system)
2016-04-24 15:19:00 +02:00
Andreas Eversberg
4b3e3385b5
common code: Fix sample rate conversion
2016-04-24 15:18:59 +02:00
Andreas Eversberg
4356c93afa
common: Add pre and de emphasis, if the radio does not support it
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Connect to the oscillator of the transmitter - good girl!
You need to enable pre emphasis in this case.
Connect to the discriminator of the receiver - good boy!
You need to enable de emphasis in this case.
2016-04-24 15:14:56 +02:00
Andreas Eversberg
2a092b8cf7
Fixing compander
2016-04-24 15:10:25 +02:00
Andreas Eversberg
9de121109d
common code: Sample rate conversion now supports any rate above 8000 Hz
2016-04-17 16:49:39 +02:00
Andreas Eversberg
05402283df
common code: Add function request information, if timer is running
2016-04-17 16:49:08 +02:00
Andreas Eversberg
4d84da31a8
Fixing timer handling
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Usage of more than one timer caused a lock-up.
2016-03-27 17:56:04 +02:00
Andreas Eversberg
1146537d84
common code: Add feature to record received audio and replay it
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-W <file.wav> writes a wave file of received audio
-R <file.wav> reads a wave file to feed into decoder
This way you can record a phone and later debug without a phone
and radio equipment.
2016-03-27 17:56:04 +02:00
Andreas Eversberg
a5db02775e
fixup debug class definition: rename DFSK and DAUDIO to DDSP
2016-03-15 19:26:13 +01:00
Andreas Eversberg
57caa536cf
Implementation of NMT (Nordic Mobile Telephoe) network
2016-03-13 19:42:19 +01:00
Andreas Eversberg
cbfc818cce
Add compander to common part
2016-03-13 16:18:42 +01:00
Andreas Eversberg
4ab1cd5026
Add DTMF coder to common part
2016-03-13 13:38:35 +01:00
Andreas Eversberg
0dc81fe210
Prepare for NMT: Fixes and improvements at common code
2016-03-13 09:12:23 +01:00
Andreas Eversberg
d21be383a6
anetz/bnetz: Move option 'loss detection' from common code to individual code
2016-03-13 09:12:16 +01:00
Andreas Eversberg
946c9ce10a
initial git import
2016-03-13 09:12:11 +01:00
