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Testbench: SRC: Relax gain test tolerance 

Gain of SRC varies by 1 dB due built-in attenuation in the filter
coefficients. It was added to avoid signal overshoots to distort
with some challenging music content. When a converter consists of
two filters in series the attenuation duplicates. While SRC is
missing the gain compensation the test criteria needs to be relaxed.

Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
This commit is contained in:
Seppo Ingalsuo 2019-10-18 15:04:14 +03:00 committed by Tomasz Lauda
parent bf11710734
commit 0324516ec3
1 changed files with 1 additions and 1 deletions
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2
tools/test/audio/src_test.m
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@ -44,7 +44,7 @@ end
% of point Fs/2 to test. The stopband of kaiser FIR is not equiripple % of point Fs/2 to test. The stopband of kaiser FIR is not equiripple
% and there's sufficient amount of attnuation at higher frequencies to % and there's sufficient amount of attnuation at higher frequencies to
% meet THD+N requirement. % meet THD+N requirement.
t.g_db_tol = 0.1; t.g_db_tol = 1.1;
t.thdnf_db_max = -80; t.thdnf_db_max = -80;
t.thdnf_db_16b = -60; t.thdnf_db_16b = -60;
t.dr_db_min = 100; t.dr_db_min = 100;