HI TI,
PDM to PCM conversion, TI Team referred audio plugin example (pdmstream). In that Example I need some clarity about output data rate.
we are using ICS-41351 PDM output sensor, there we have 3 power modes.
Our ultimate goal is to achieve the output data rate as 8K & 16K.
But WRT the pdmstream example :
Output Data rate : Input Clock / Decimation Factor
As per the pdmstream code the decimation factor they are telling as ( // Must match your custom filter - Must be set to 64 or 128 )
For Example : In order to get 16 KHz ODR
Output Data rate : 1024000 / 64 = 16000 Hz ( Note : Even we verified we are able to achieve )
1. My questions - Is that possible to change the decimation factor value as user need. ( In order to achieve 16K & 8K in Low power Mode ) / or that should be 64 or 128 ?
For example :
Output Data Rate : 800000 / 50 = 16000 Hz
2. If no that parameter will affect in the audio plugins internal driver functionality and filter part ?
