diff options
| author | Andreas Eversberg <jolly@eversberg.eu> | 2017-01-05 15:53:55 +0100 |
|---|---|---|
| committer | Andreas Eversberg <jolly@eversberg.eu> | 2017-01-07 06:28:23 +0100 |
| commit | 713b1ab118f4ded11a8435bbd4d81c117e7fe180 (patch) | |
| tree | 73a7cbd5a15a4a2d61cf81f0ecfc85ad1d3ffd7b /src/cnetz | |
| parent | d447be5e265e9afe5b5a67f924b16f71f4faeea5 (diff) | |
Rename functions and structure of biquad lowpass filter
Diffstat (limited to 'src/cnetz')
| -rw-r--r-- | src/cnetz/scrambler.c | 4 | ||||
| -rw-r--r-- | src/cnetz/scrambler.h | 2 |
2 files changed, 3 insertions, 3 deletions
diff --git a/src/cnetz/scrambler.c b/src/cnetz/scrambler.c index 5b1af19..461fe76 100644 --- a/src/cnetz/scrambler.c +++ b/src/cnetz/scrambler.c @@ -48,7 +48,7 @@ void scrambler_init(void) void scrambler_setup(scrambler_t *scrambler, int samplerate) { - biquad_init(&scrambler->bq, CARRIER_HZ - FILTER_BELOW, samplerate); + filter_lowpass_init(&scrambler->lp, CARRIER_HZ - FILTER_BELOW, samplerate); scrambler->carrier_phaseshift256 = 256.0 / ((double)samplerate / CARRIER_HZ); } @@ -77,7 +77,7 @@ void scrambler(scrambler_t *scrambler, int16_t *samples, int length) scrambler->carrier_phase256 = phase; /* cut off carrier frequency and modulation above carrier frequency */ - biquad_process(&scrambler->bq, spl, length, FILTER_TURNS); + filter_lowpass_process(&scrambler->lp, spl, length, FILTER_TURNS); for (i = 0; i < length; i++) { /* store result */ diff --git a/src/cnetz/scrambler.h b/src/cnetz/scrambler.h index 7b5deff..757940b 100644 --- a/src/cnetz/scrambler.h +++ b/src/cnetz/scrambler.h @@ -3,7 +3,7 @@ typedef struct scrambler { double carrier_phaseshift256; /* carrier phase shift per sample */ double carrier_phase256; /* current phase of carrier frequency */ - biquad_low_pass_t bq; /* filter to remove carrier frequency */ + filter_lowpass_t lp; /* filter to remove carrier frequency */ } scrambler_t; void scrambler_init(void); |