Need some help please!

[BobF]

BobsCascadedDevices.fsm

(358.15 KiB) Downloaded 857 times

Hello gang,

I have up loaded a simple 512 stage shift register It's made up of 512 series cascaded flip flops if you look at the insides. As you can it uses up a lot of CPU cycles. The question is is there a better way to do this and keep the CPU load down? Any solution would be great and several even better. I know there may be none, yet I have seen several commercial vst plugins that boast hundreds to thousands of series cascades. How do they do it?

Also I have noticed the same thing with series cascades of filters, sample and holds, and so on.

Hope some of you can provide an answer.

Many thanks in advance, BobF.....

[Spogg]

Hi Bob

On my PC (i7) this uses 100% CPU

I guess it may be possible to reduce this by using ASM optimised modules but that's beyond me at the moment.
I do wonder if the result you wanted can be achieved in DSP in one more compact method rather than using a component-based approach. What was the result you wanted?

Also I wonder if two DSP boxes in series is less efficient than the same function in just one box. Maybe one of the wizards could help with that question...

Cheers

Spogg

[adamszabo]

What is this for anyway? It uses 100% cpu here too, and crashes most of the time.

[BobF]

Hi gang,

No immediate use at the moment. I made the 512 bit shift registor sometime ago. It just demonstrated the problem very well. Like I said though , I have seen it with filters , sample and holds, and so on. I do want to start a project with 100 or more series cascaded filters though and am concerned about the same thing happening. I saw commercial vst that claims to have up to several hundred filters in series I want to try and copy.

Thanks guys, BobF.....