Faulty frequencies in Sigma Studio
I have chosen Fs to 48 kHz.
All filters in the Sigma Studio have actually a frequency that is four times the value.
A filter at 250 Hz has really a frequency of 1000Hz.
So I switch the Fs to 192 kHz.
Then all filters were correct.
Why does not 48kHz work corect?
I use an ADAU1701 DSP.
Audio Signal Processors
SigmaDSP Audio Processors
adau1701
HI Helge:
Changing the Frequency in SigmaStudio doesn't actually change the clock and/or register setting (divider) that you supply to the part. The SigmaStudio frequency is to allow the PC to calculate all filter coefficients. In other words, it only takes care of the SW side of the FS change, not the HW.
Let us know if this is clear to you.
Regards
Miguel
Thank you for the answer.
I found the settings in DSP CORE block.
I've set it to "1X" and everything worked fine.
Thanks for the help.
Helge Fykse
(Here is my amplifier:-)
Thanks Helge:
What is your amplifier. Is it attached to the speaker?
Thanks
Miguel
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