The path append of current directory (.) is not correct for
the signal processing package function iirnotch. The issue does
not happen with Octave since it has pei_tseng_notch().
The standard notch function is used in all THD+N tests so this
issue has caused fail of nearly all tests with Matlab.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
To make sure we are using max 1 octave step, we need to use noct+1 to
get noct sections from logspace.
Signed-off-by: Keyon Jie <yang.jie@linux.intel.com>
To support exist function - fullfile() path addition is to prevent Matlab (differently than Octave)
to give false positive with some other directory location with it's search path
Added correction to isempty.
Signed-off-by: ShriramShastry <malladi.sastry@intel.com>
The log() function returns -Inf for level measure for stream of
digital zeros. It is correct but requires extra handling in the
upper level functions to avoid unnecessary tests fails. Adding of
offset 1e-20 results to -196.99 dBFS be the smallest possible
reported value. The function remains sufficient for all audio
measurements with 16 - 32 bit formats.
The license text is also updated to current version.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
The main change in this patch is to allow process_test to use
frequency dependent masks for frequency response and THD+N. It
allows tests with pass/fail criteria for components like EQs
and DCblock. SRC test not really changed but the small changes
in passing test controls are updated there as well.
In EQs tests the process test can decode the theoretical response
from setup blob. The measured frequency response is compared to
that.
The test print and plot output look is improved for nicer reports.
The runtime plots opening is disabled for batch mode operation
but the plots now appear to test output directory in png format.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
The function getpid() is only available in Octave. Instead use
a random integer number as identification to avoid conflict with
possible several simultaneous simulations with temporary files.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
This patch adds a shell script sof_test_perf.sh that measures
gain, frequency response, and total harmonic distortion plus
noise for a remote device.
Matlab or Octave is needed. The shell script launches by default
Octave to process the signal generation and test results analysis
scripts.
The remote device must be set to be accessible by ssh without
passwords. An external high quality USB sound card is recommended
as analog interface to connect to test device's analog interface.
The configuration file sof_test_perf_config.m must be edited for
the remote device's user account, audio device, audio format, and
capture sound card audio device, and audio format.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
Seppo Ingalsuo