1 files changed, 0 insertions, 40 deletions
diff --git a/cras/src/dsp/tests/plot_fftl.m b/cras/src/dsp/tests/plot_fftl.m
deleted file mode 100644
index bffc0b8e..00000000
--- a/cras/src/dsp/tests/plot_fftl.m
+++ /dev/null
@@ -1,40 +0,0 @@
-% Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
-% Use of this source code is governed by a BSD-style license that can be
-% found in the LICENSE file.
-%
-% This is an octave script.
-% It reads impulse response from "ir.dat" and plots frequency response.
-% Both x-axis and y-axis is in log scale.
-h=load("ir.dat");
-N=columns(h);
-K=rows(h)/2;
-NQ=44100/2;
-% This tries to match the labels in the audio tuning UI.
-xticks=[22050, 11025, 5513, 2756, 1378, 689, 345, 172, 86, 43, 21];
-xticklabels={"22050Hz", "11025Hz", "5513Hz", "2756Hz", "1378Hz", \
-"689Hz", "345Hz", "172Hz", "86Hz", "43Hz", "21Hz"};
-yticks=[18,12,6,0,-6,-12,-18,-24];
-yticklabels={"18dB","12dB","6dB","0dB","-6dB","-12dB","-18dB","-24dB"};
-xyrange=[21,22050,-24,18];
-xrange=[21,22050];
-
-for i=1:N
-  figure(i);
-  title('fftl');
-  fr = fft(h(:,i))(1:K);
-  subplot(2, 1, 1);
-  semilogx(NQ*(1:K)/K, 20*log10(abs(fr)));
-  xlabel('Frequency'), ylabel('Magnitude'), grid;
-  set (gca, "xtick", xticks);
-  set (gca, "xticklabel", xticklabels);
-  set (gca, "ytick", yticks);
-  set (gca, "yticklabel", yticklabels);
-  axis(xyrange);
-  subplot(2, 1, 2);
-  semilogx(NQ*(1:K)/K,180/pi*unwrap(angle(fr)));
-  xlabel('Frequency'), ylabel('Phase (degrees)'), grid;
-  set (gca, "xtick", xticks);
-  set (gca, "xticklabel", xticklabels);
-  axis(xrange);
-end
-pause