Add Control Signals for Parameters in Sigma DSP
I was wondering if there is a way to add controls to the parameters of the DSP modules in Sigma Studio. For example, I would like to have a signal control the length of a delay or the cutoff of a filter so they can be changed in real time in the hardware application. Is there a way to do this?
sigma studio
control parameters
SigmaDSP
Hello Emmitt,
Sorry for the delay in responding. We had a bit of a backlog.
There is a voltage controlled multitap delay cell that will allow you to control it from an AUX ADC. As I recall I think you are using an ADAU1701? If you have an external controller then you can control many functions using the uC.
The filter cutoff is a little more difficult. Because the filter coefficients need to be changed. We do have an index controlled filter cell that takes an external input and selects between several filters that are stored with the cell. You can control it with push buttons or an AUX ADC connected to a pot. The interface details are slightly different. Let me know where you stand with your project and I can give you some more details as needed.
Thanks,
Dave T
Please log in to reply.