- CONFIG_COMP_ASRC_DOWNSAMPLING_CUSTOM¶
Custom downsampling conversions support
Type: bool
Help¶
This option used to manually select each downsampling ratio.
In order to optimize the text code size of the sample rate
converter, non-required conversion ratios can be
deactivated. Disregarding these settings, the sample rate
converter always supports all conversion ratios with fs_in
less or equal to fs_out. Therefore, it is possible to
deactivate all conversion ratios listed below, if we only
need an (asynchronous) 1:1 sample rate conversion, e.g, from
16 kHz to 16 kHz. This option allows to trim down the coefficient
memory for conversion down from default 18 kB. Each conversion
needs about 2 kB.
Direct dependencies¶
<choice: ASRC down sampling conversions set>
(Includes any dependencies from ifs and menus.)
Kconfig definition¶
At /home/nashif/zephyrproject/modules/audio/sof/zephyr/../src/audio/Kconfig:228
Included via Kconfig:8 → Kconfig.zephyr:23 → modules/Kconfig:6 → doc/_build/Kconfig/Kconfig.modules:14 → /home/nashif/zephyrproject/modules/audio/sof/zephyr/Kconfig:2 → /home/nashif/zephyrproject/modules/audio/sof/zephyr/../Kconfig.sof:124 → /home/nashif/zephyrproject/modules/audio/sof/zephyr/../src/Kconfig:9
Menu path: (Top) → Modules → sof (/home/nashif/zephyrproject/modules/audio/sof) → Audio components → ASRC component → ASRC down sampling conversions set
config COMP_ASRC_DOWNSAMPLING_CUSTOM
bool "Custom downsampling conversions support"
depends on <choice>
help
This option used to manually select each downsampling ratio.
In order to optimize the text code size of the sample rate
converter, non-required conversion ratios can be
deactivated. Disregarding these settings, the sample rate
converter always supports all conversion ratios with fs_in
less or equal to fs_out. Therefore, it is possible to
deactivate all conversion ratios listed below, if we only
need an (asynchronous) 1:1 sample rate conversion, e.g, from
16 kHz to 16 kHz. This option allows to trim down the coefficient
memory for conversion down from default 18 kB. Each conversion
needs about 2 kB.
(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)