osmocom-analog - An implementation of Analog cellular networks like A-Netz and B-Netz

Age	Commit message (Collapse)	Author	Files	Lines
2017-09-01	Emphasis: Add filter to prevent emphasis above 4000 Hz	Andreas Eversberg	1	-0/+7
	Remove obsolete filter from fsk.c.
2017-05-15	Rename filter -> iir_filter (file name and instance name)	Andreas Eversberg	1	-3/+3
	This is useful when using fir_filter in the future.
2017-02-18	Correcting all levels and move all remaining integer samples to sample_t	Andreas Eversberg	1	-6/+7
	The leves are based on the standards of each mobile network. They are adjusted to the specified frequency deviation now.
2017-02-18	Add global DC-Filter and remove all individual DC-Filters	Andreas Eversberg	1	-3/+7

2017-02-18	Work on emphasis filter: Neutral @ 1000 Hz; Use filter before de-emphasis	Andreas Eversberg	1	-31/+50

2017-02-18	Move samples of int16_t format to sample_t, that is of type double	Andreas Eversberg	1	-18/+6
	This prepares the correction of all levels
2016-10-23	C-Netz: Use emphasis with 200 uS time constant	Andreas Eversberg	1	-6/+7

2016-05-13	common code: Fixed de-emphasis by adding high pass filter	Andreas Eversberg	1	-19/+37
	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.
2016-05-01	common code: Make preemphasis 0 dB @ 1000 Hz	Andreas Eversberg	1	-3/+3

2016-04-24	common: Add pre and de emphasis, if the radio does not support it	Andreas Eversberg	1	-0/+102
	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.