16bit i2s 48khz Source to SRC4192

[djwenne]

Hi,
i have an Audio Source 16bit 12S 48 khz and want convert this to 44.1 khz. I know i must use an SRC like the 4192 from TI.

On the Datasheet i cant find any settings for an 16 Bit I2S source.

Works 24bit i2S?
Any Idea how to do this? Thanks...

 

[wa2ise]

You could stuff zeros for the 8 least significant bits, to make the 16 bits look like a 24 bit signal. Assuming the data rate conversion uses a "poly phase filter", most if not all of the new samples will be 24 bits, the 8 LSBs not all zeros.

 

[Torchwood421]

Hi from a fellow ham

You could stuff zeros for the 8 least significant bits, to make the 16 bits look like a 24 bit signal. Assuming the data rate conversion uses a "poly phase filter", most if not all of the new samples will be 24 bits, the 8 LSBs not all zeros.

Off topic... Hello from AB0N 😉

 

[djwenne]

Problem Fixed

Hi again,
i found it out. The SCR 4190/ 4192 works in I2S Mode from 16 bit to 24 bit.
It`s not necessary to do something self 🙂

- closed -