OrgACRN
/
sof
mirror of https://github.com/thesofproject/sof.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

[SKIP CI] Tools: Test: Fix upper band limit in THD+N SRC test 

This patch fixes the upper frequency for distortion plus noise
measurement. The min(fs1, fs2) leaves part of upper band unmeasured
and gives a too good looking THD+N performance figure when output
rate is higher than input rate. The proper way is to measure the
(near) full output rate bandwidth.

Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
This commit is contained in:
Seppo Ingalsuo 2022-10-14 19:21:30 +03:00 committed by Liam Girdwood
parent f3fee13471
commit ab8c150b93
1 changed files with 1 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
tools/test/audio/src_test.m
View File

@ -263,9 +263,7 @@ end
prm = src_param(t.fs1, t.fs2, test.coef_bits);
test.f_start = 20;
test.f_end = prm.c_pb*min(t.fs1, t.fs2);
test.fu = prm.c_pb*min(t.fs1, t.fs2);
%test.f_end = 0.4535*min(t.fs1, t.fs2);
%test.fu = 0.4535*min(t.fs1, t.fs2);
test.fu = prm.c_pb * t.fs2;
%% Create input file
test = thdnf_test_input(test);