3a5fa8837c
Improved emphasis
2018-02-16 15:54:39 +01:00
f91e6f5034
Make libdebug not depend on libdisplay
2018-02-15 08:00:19 +01:00
c49ee3b2a8
Remove dependencies between debug, displays and mncc-console
...
Test functions are cleaned up, due to removed dependencies.
2017-12-09 20:46:13 +01:00
1a341f6b4e
Restructure: Move debug from common code to 'libdebug'
2017-12-03 08:45:58 +01:00
ed31a26eba
Restructure: Move sample from common code to 'libsample'
2017-12-03 08:45:48 +01:00
40c24a70b2
Restructure: Move emphasis from common code to 'libemphasis'
2017-11-25 19:23:56 +01:00
669705c6ed
Restructure: Move filters from common code to 'libfilter'
2017-11-13 19:15:09 +01:00
cff7622f5c
Move mobile phone specific code from libcommon.a to libmobile.a
2017-09-01 18:42:49 +02:00
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
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
bd7ccc5fa0
Add global DC-Filter and remove all individual DC-Filters
2017-02-18 21:01:12 +01:00
71e556e7ff
Work on emphasis filter: Neutral @ 1000 Hz; Use filter before de-emphasis
2017-02-18 21:01:11 +01:00
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
1ea95de120
C-Netz: Use emphasis with 200 uS time constant
2016-10-23 08:46:05 +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
0c99848120
common code: Make preemphasis 0 dB @ 1000 Hz
2016-05-01 15:14:57 +02:00
4356c93afa
common: Add pre and de emphasis, if the radio does not support it
...
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