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Merge pull request #17 from singalsu/topic/fix_src_test_case_fail 

SOFT: Improve audio test synchronization code
This commit is contained in:
Liam Girdwood 2018-07-02 10:33:14 +01:00 committed by GitHub
parent 9aa6193795 2cc0d1f9c6
commit 629d2a6bf1
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GPG Key ID: 4AEE18F83AFDEB23
5 changed files with 11 additions and 10 deletions
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2
test/test_utils/chirp_test_analyze.m
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@ -38,7 +38,7 @@ if nx < 1
end
%% Find sync
[d, nt, nt_use, nt_skip] = find_test_signal(x, test);
[d, nt, nt_use, nt_skip] = find_test_signal(x(:,test.ch(1)), test);
%% Trim sample
i1 = d+nt_skip;

2
test/test_utils/chirp_test_input.m
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@ -77,7 +77,7 @@ test.fn_out = sprintf('chirp_test_out.%s', test.fmt);
test.a_db = -0.1; % Near full scale
test.a = 10^(test.a_db/20);
test.f_min = 20;
test.f_max = test.fs/2;
test.f_max = 0.99*test.fs/2;
test.cl = 2.0;

7
test/test_utils/find_test_signal.m
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@ -34,8 +34,8 @@ function [d, nt, nt_use, nt_skip] = find_test_signal(x, test)
fprintf('Finding test start marker...\n');
s = sync_chirp(test.fs, 'up');
nx = length(x);
n_half = round(nx/2);
n = min(round(test.fs*test.sm), n_half);
n_seek = round(test.fs*(test.idle_t + test.mark_t));
n = min(round(test.fs*test.sm), n_seek);
y = x(1:n);
[r, lags] = xcorr(y, s);
[r_max, idx] = max(r);
@ -44,7 +44,8 @@ d_start = lags(idx);
%% Find end marker
fprintf('Finding test end marker...\n');
s = sync_chirp(test.fs, 'down');
n = min(round(test.fs*test.em),n_half);
n_seek = round(test.fs*(2*test.idle_t + test.mark_t));
n = min(round(test.fs*test.em),n_seek);
y = x(end-n+1:end);
[r, lags] = xcorr(y, s);
[r_max, idx] = max(r);

6
test/test_utils/mix_chirp.m
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@ -43,8 +43,8 @@ test.mark_a_db = mark_start.a_db;
test.ts = mark_start.t;
%% Idle time to start and end
t_idle0 = 0.5;
n_idle = round(test.fs*t_idle0);
test.idle_t = 0.5;
n_idle = round(test.fs*test.idle_t);
t_idle = n_idle/test.fs;
x = zeros(test.nt + mark_start.n + mark_end.n +2*n_idle, test.nch, 'int32');
@ -65,7 +65,7 @@ i1 = n_idle+mark_start.n+1;
i2 = i1+test.nt-1;
fprintf('Mixing %.1f dBFS chirp ...\n', test.a_db);
tc = ((1:round(test.cl*test.fs))-1)/test.fs;
s = test.a * chirp(tc, test.f_min, test.tl, test.f_max, 'linear');
s = test.a * chirp(tc, test.f_min, test.tl, test.f_max, 'linear', 90);
sign = 1;
for ch=test.ch
x(i1:i2, ch) = dither_and_quantize(sign * s, test.bits_in);

4
test/test_utils/mix_sweep.m
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@ -45,8 +45,8 @@ test.mark_a_db = mark_start.a_db;
test.ts = mark_start.t;
%% Idle time to start and end
t_idle0 = 0.5;
n_idle = round(test.fs*t_idle0);
test.idle_t = 0.5;
n_idle = round(test.fs*test.idle_t);
t_idle = n_idle/test.fs;
x = zeros(test.nf*test.na*test.nt +mark_start.n +mark_end.n +2*n_idle, ...
test.nch, 'int32');