The loudness EQ is changed to 250 taps to create large IPC
message type. It also improves subjective quality of this
effect with better bass response. The earlier version was
made very short to fit the that time IPC size limit.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
Change the default slot mapping from L_lo-L_hi-R_lo-R_hi to
L_lo-R_lo-L_hi-R_hi so slot 0/1 is for woofer and slot 2/3 is for
tweeter.
Signed-off-by: Brent Lu <brent.lu@intel.com>
This patch adds for the IIR equalized component a test with
comparison 100 ms of Octave generated output to output of the
component. The test signal is a full scale chirp signal. The
IIR response is both amplifying and attenuating to trigger as
much as possible issues with internal overflows.
All test data was generated by Octave script
cmocka_data_eq_iir.m. Re-run of script updates the used header
files the in cmocka tests directory.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
Added singular value decomposition algorithm
for diagonal matrix calculation. Added filters for side
lobe artifacts.
Signed-off-by: ShriramShastry <malladi.sastry@intel.com>
This patch adds topologies sof-apl-nocodec-demux-eq-2ch4ch.tplg and
sof-apl-nocodec-demux-eq-4ch4ch.tplg. Playback of 2ch creates 4ch
output in format L_lo, L_hi, R_lo, and R_hi. An example band-split
at 2 kHz is configured for EQ processing. The low band contains
an additional 80 Hz high-pass.
The pipeline was tested in UP2 device. The nocodec topology enables
an useful SPP loopback mode. The capture PCM is connected to DAI
loopback so this pipeline can be tested with simultaneous 2ch aplay
and 4ch arecord.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
The change for topology1 was missing from various tuning
and testing scripts those access binary blob data from
topology m4 directories.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
Topologies 1.0 location has been changed. This update allows the
tool to create the files into correct path.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
The delay-and-sum beamformer has highest white noise gain (WNG)
performance. It's good id suppressing microphone self noise. The
beam is steered with pure delay adjust in the all-pass filter
bank. Default type is still super directive. Use DSB or SDB
as beamformer type to select.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
Matlab does not support isfile(), so another command is used to
check if a file exists. The new way works both in Octave and Matlab.
The bf_defaults.m is fixed to properly initialize empty strings
to cell arrays. It's needed with minimal command like usage
as shown in SOF Docs examples.
In bf_design.m the num_filters determination is moved after array
helpers because other than line and circle do not use mic_n parameter.
The bug resulted to zero num_filters.
In bf_merge.m the unused bf3 and bf4 are removed.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
This patch essentially adds support for steer_az/steer_el to be
vector instead of scalar. The beam off preset is added by default
automatically for N-channel in N-channel out configurations. Microphone
(x,y,z) coordinates are passed in to blob for direction of arrival
reporting.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
This patch fixes the incorrect delaying of simulation input signal to
microphones. Instead of delaying the old code advanced the input the
more the larger the input is. E.g. It caused the tests for line arrays
to show a mirrored beam pattern.
The num_filters is replaced by mic_n (microphones count). It is the
correct count to use here though usually filters count is the same.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
The plots help to understand beamformer channel filters characteristic.
Frequency response is usually all-pass type and group delays match
the delays need to time-align the waveforms from steer angle.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
This patch improves the beamformer performance (vs. tap count) by
shifting the extract window location for IFFT output by mean of
all impulse responses center. Previously the first filter was centered
and other filters were more towards start or end of impulse response.
The change helps to cope with smaller filter length with larger size
arrays with steer angles those spread the impulse response further
away time-wise from each other.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@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>
This commit adds the tools to generate the control bytes for the
multiband_drc component. To generate the control bytes, run the
example_multiband_drc.m script.
To tweak the parameters modify the values in example_multiband_drc.m
and run it.
Signed-off-by: Pin-chih Lin <johnylin@google.com>
This fix adds initialization and declaration of variable f_single
to avoid a previously overlooked error when accessing it in the
end of script. It produces the plot but with a warning print.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
This patch adds the the Matlab script dmic_init() that simulates
initialization of the Intel PDM digital microphones decimation
block. The tool computes the needed FIR filters and exports
them as C header files. The script dmic_batch computes all the
currently used decimation settings.
The generated header files from subdirectory include need to be
manually copied to src/include/sof/audio/coefficients/pdm_decim/
and the header file pdm_decim_table.h edited manually if the
header file names were changed due to different filter characteristic
(band frequencies, stop-band attenuation).
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
Used the similar parameter set as the DRC kernel in CRAS to generate ctrl
bytes for DRC component.
Plotted input-output dB response curve with the specific parameter set.
Signed-off-by: Pin-chih Lin <johnylin@google.com>
The bf_defaults() now sets the default directory locations for
for bf_export() so it does not need to be set in every script.
Also the defaults for input channels and output mixing are set to
that in typical design they do not need to be set.
The default distance for look direction is set to 5.0m so it is better
guaranteed in far field for even relatively large arrays. The far field
assumes planar sound waves. The design equations do not fully support
near field with spherical waves.
The FFT length is changed to 1024 to enable design of longer filter bank
filters. There's no compromise in performance for for e.g. length 64.
The incorrect use of mic_n (number of microphones) is replaced by
num_filters. It's possible define beamformer that ignores some mic
channels so these are not the same.
The automatic systematic design file names are now created for all array
types, not just line.
The script is made more flexible to run without need to export data and
clutter just to quickly interactively check from plots what kind of
beam pattern and other characteristic some array, e.g. circular with
some radius and mic count gives.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
This patch adds the missing XYZ 3D array helper and does minor fixes
for two others. The L-shape microphones orientation is made similar as
in rectangular array by inverting the y-axis. The missing centering
of rectangular array is added.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
This commit adds the tools to generate the control bytes for the
drc component. To generate the control bytes, run the example_drc.m
script.
To tweak the parameters modify the values in example_drc.m and run it.
This is still WIP. A fixed set of coefficients is temporarily used in
drc_generate_config.m
Signed-off-by: Pin-chih Lin <johnylin@google.com>
This patch adds the tool for creating beamformer configurations. The
microphone array geometry and beam angle (azimuth, elevation) need
to be specified. See the example scripts and sample array helper
functions.
The FIR blob quantize function needed a minor change to prevent strip
of trailing zero coefficients. The beamformer filter bank needs to use
equal length filters.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
This commit adds the tools to generate the control bytes for the
crossover component. To generate the control bytes, run the
example_crossover.m script.
The parameters of the crossover components are:
- number of outputs
- sink assignments (routing crossover output to different pipelines)
- frequency cutoffs
To tweak the parameters modify the values in example_crossover.m and run
it.
Refer to sof/src/include/user/crossover.h for more information on how
the crossover config is structured and how sink assignments are done.
Signed-off-by: Sebastiano Carlucci <scarlucci@google.com>
Frequency response measure script mls_freq_resp.m could fail due to
network or ssh execution delays. This patch increases the recording
time by 3 seconds to ensure that remote device playback via ssh for
the relevant parts is within the local capture window.
Also the start marker search is done for first 5 seconds of captured
test signal. The script exits cleanly if the start and end markers
were not found and the captured waveform is shown to help understand
the possible network delays caused issue.
The BSD-3-Clause text is updated to short version.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
This patch adds script src_small_int32.m to generate the intermediate
size SRC coefficients set. The export functions are updated for
short BSD copyright and to output licence text and needed header
files inclusions.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
This patch adds for EQ tests and presets switch development a
bundle with five presets: flat, loudness, bass-boost, band-pass,
and high-pass. The m4 file is used by including to topologies. The
text format file is for sof-ctl.
The added code to script example_iir_eq.m is included. The blob is
also useful for testing multi-part IPC for EQ component. The existing
examples were not large enough to exercise the feature.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
The case where blob decoding is requested for single frequency,
e.g. 1 kHz the magnitude and group delay vectors did not have
size of one frequency. This patch fixes the issue.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
This patch adds user friendly function eq_blob_plot(file) to
plot the IIR or FIR equalizer response that will be applied for
each channel.
The IIR and FIR decoders are modified to better support the higher
level script.
The copyright texts in impacted scripts are are updated to short
BSD-3-Clause style.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
This patch reduces amount of printed text to screen when Matlab/Octave
EQ tool needs configuration blob header information. The output is
redicted to /dev/null.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
This patch updates the generated file names and locations. The
private data names for topology are changed to DEF_EQIIR_PRIV
and DEF_EQFIR_PRIV to work with updated private date naming scheme.
The copyright text is updated to short BSD-3-Clause text version.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
This patch cleans the FIR examples generation with more consistent
directories output and file names. The EQ private data name is
renamed for a more consistent scheme into DEF_EQFIR_PRIV for all
generated coefficient data files.
The copyright text is updated to new shorter BSD-3-Clause version.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
This patch makes the script more consistent with file names
and paths lets the script to output more useful example IIR
responses into m4 directory for usage with topologies and
testing.
The not consistent naming of IIR private data is aligned. The
label DEF_EQIIR_PRIV is used always that should be macro replaced
by pipeline specific name prior to including them into topology to
enable several EQ instances to be set up with different filter
coefficients.
The copyright text for updated files is updated to short BSD-3-Clause
version.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
This patch fixes the issue in script example_iir_eq.m with gain
parameter for function hp_iir_eq(). The last parameter was hard
coded to 0 that caused all 20 dB labeled topologies to to have in
reality 0 dB gain.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
This commits adds the scripts to generate the bytes control blob
for the DCB. It also provides some generic scripts to convert
valid binary blob to a csv or binary file (usable by sof-ctl)
or an m4 byte control topology file.
This commit adds two new folders under tools/tune
- dcblock: scripts to generate the blob in Octave
- common: scripts to convert any generic blob to a config file.
Signed-off-by: Sebastiano Carlucci <scarlucci@google.com>
This patch corrects the shown parameters orders for help text
and updates the copyright text style.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
This patch fixes a mistake that forces generation of rate into
fs_inout matrix diagonal. The purpose of this test is to enable
SRC to pass equal input and output rate, so in case not equal
input and output rates the generator would not disable such
conversion if requested.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
This patch replaces in topology sof-hda-generic.m4 the use of macro
pipe-volume-capture.m4 usage with a new macro pipe-highpass-capture.m4.
The used 40 Hz cut-off is sufficient to suppress the DC pulse in the
beginning of capture from headset with minimal impact to other
applications such as recording music.
The capture volume ramp length is changed from 250 ms to 400 ms. The
longer ramp is feasible because the microphone path seems to open
at 500 ms from capture. It helps to attenuate the remaining noises
in the beginning of capture.
The patch also adds additional high-pass responses macros for
topology with different 20-50 Hz cut-off frequencies into
SOF/tools/topology/m4.
The changes for Matlab/Octave script example_iir_eq.m that
generated the filter coefficients are included here as well.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
The Xtensa GCC build on APL platform can process about 40 taps
FIR filter so it is useful to have one such configuration. The
eq_fir_mid.txt is be applied with sof-ctl tool.
The patch contains the Octave script modification. The print of final
filter length is added to blob packer script to see the resulting
length when the filter is generated. The small filter spec change
helps the filter tool to achieve result that is close to requested
shape.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
Recreate gui for audio-tuning.appspot.com using SOF config. For IIR
filters only currently. Once DRC is ported then GUI can be ported as
well.
Signed-off-by: Curtis Malainey <cujomalainey@google.com>
This patch avoids the need to main SOF ABI version information in
Matlab/Octave file eq_get_abi.m for equalizer tools. The ABI
header is fetched via new "-p" command line option for sof-ctl.
The BSD 3 clause copyright text is also updated to new short style.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
Seppo Ingalsuo