final algorithms up

dariosanfilippo · May 9, 2020 · c6b277b · c6b277b
1 parent 0cc590a
commit c6b277b
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Showing 5 changed files with 2 additions and 72 deletions.
diff --git a/als.dsp b/als.dsp
diff --git a/detection.lib b/detection.lib
@@ -18,10 +18,6 @@ fi = library("filters.lib");
 // constant, that is, the system decays by 1/e^2.2 in "frame" seconds.
 avg_t19(frame, x) = si.smooth(ba.tau2pole(frame / 2.2), x);
 
-// Bandpass filter bank with 6th-order elliptic filters on the 0-20kHz
-// range. N is the number of bands including DC and Nyquist.
-bpbank(N) = an.mth_octave_analyzer6e(1, 20000, N);
-
 // NAN-safe division
 div(x1, x2) = ba.if(x2 == 0, 0, x1 / x2);
 

diff --git a/suppression.lib b/suppression.lib
@@ -101,7 +101,8 @@ phase_invert(cf, x) = allpass(cf, x) : allpass(cf);
 
 // 2p2z state-variable filter with zero-delay feedback topology
 // inputs are cutoff, Q, shelving boost (linear amp.), input signal
-// outputs are LP, HP, BP, BP_normalised, LS, HS, BS, notch, peak, AP
+// outputs are LP, HP, BP, BP_normalised, LS, HS, BS, notch, peak, AP.
+// Ref.: Zavalishin; Pirkle.
 svf2blti(cf, q, k, in) =   tick
                            ~ ( _,
                                _) : (  !,

diff --git a/test_rms_suppression_mic.dsp b/test_rms_suppression_mic.dsp
diff --git a/test_sc_suppression_mic_2nd-order_notch.dsp b/test_sc_suppression_mic_2nd-order_notch.dsp