Teensy 4.1 and Audio board at 96 kHz sampling rate?

[Jaco Versfeld]

Good day,

Is it possible to run the Audio board at a sampling rate of 96 kHz with the Teensy 4.1. Would it be as simple as setting the correct registers on the SGTL5000?

Kind regards,
Jaco

 

[Jaco Versfeld]

Good day,

Also, how does one disable the dithering of the SGTL5000 on the Audio board?

Are there C commands that I can use to set registers on the SGTL5000? (I assume the commands similar to "adcHighPassFilterDisable(); " set registers on the SGTL5000 ...)

Also, where can I see how "AudioConnection" is implemented? Is AudioConnection a buffer/queue, or is it set up as DMA?

Thanks,
Jaco

 

[WMXZ]

Good day,

Is it possible to run the Audio board at a sampling rate of 96 kHz with the Teensy 4.1. Would it be as simple as setting the correct registers on the SGTL5000?

Kind regards,
Jaco

Yes, see https://forum.pjrc.com/threads/52798-Overclocking-SGTL5000?p=181609&viewfull=1#post181609
this was done for T3.x but shows method.

 

[WMXZ]

Good day,

Also, how does one disable the dithering of the SGTL5000 on the Audio board?

Are there C commands that I can use to set registers on the SGTL5000? (I assume the commands similar to "adcHighPassFilterDisable(); " set registers on the SGTL5000 ...)

Also, where can I see how "AudioConnection" is implemented? Is AudioConnection a buffer/queue, or is it set up as DMA?

Thanks,
Jaco

not sure, if there is dithering.
SGTL commands are found in Audio library. AudioConnection is found in cores AudioStream.(h/cpp). (IIRC, it is simply a linked list that is worked at software interrupt level)