Audio: Multiband-DRC: Tune: Updates to setup tool after moving then to modules, blob updates to pass a quality check #9599
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This patch fixes paths to moved utilities from DRC, EQ, and crossover. The paths are changed and common utilities are prefixed with sof_. The same sof prefix add is done for Mltiband-DRC. There are no functional changes and changes to config blob data contents from this patch. Signed-off-by: Seppo Ingalsuo <[email protected]>
This change allows to tune all bands parameters from script top level. It prepares for a better testable default blob for the component. The actual setup blobs data is not impacted by this same since the parameters are kept the same. Signed-off-by: Seppo Ingalsuo <[email protected]>
The plot is useful to see impact of emphasis/de-emphasis filter parameters. The patch adds two arguments to function sof_iir_gen_quant_coefs() for rate and enable to show in the plot when enabled and with a frequency scale in x-axis. Signed-off-by: Seppo Ingalsuo <[email protected]>
This change helps the default blob to pass the coarse audio quality check that is done in scripts/host-testbench.sh. The knee and limiting region of each band is brought down from threshold -24 to -40 to avoid signal clipping. It helps to pass the -1 dBFS chirp in the test. The band edge frequencies are moved up for test purpose to better see the band edges. The emphasis of high frequencies is changed with parameter stage_gain to much less than 1 dB to keep the feature active in testing performance but not impacting much to processed audio. The emphasis filter with previous setting caused a lot of distortion and may need revisit in coefficients calculation or filter scaling. These parameters are not final. The better default parameters for e.g. a notebook speaker are for further study. Signed-off-by: Seppo Ingalsuo <[email protected]>
New blob for testing that passes the scripts/host-testbench.sh audio quality test. Signed-off-by: Seppo Ingalsuo <[email protected]>
singalsu
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lgirdwood
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Oct 21, 2024
johnylin76
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Oct 23, 2024
cujomalainey
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Oct 24, 2024
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Fixes the impacts of moving tools for other modules (Crossover, DRC, EQ) and updates the blob, so that multiband-DRC test can be executed in ipc4 testbench with scripts/host-testbench. The ipc3 version test passed only because it was using a pass-through blob. The previous default blob with processing enabled failed to too strong distortion.
The patch also adds to multiband-DRC design example plot of emphasis/de-emphasis response to better understand the impact of emphasis parameters.