Welcome, Guest
Username: Password: Remember me

NOTE: This is a "Community" forum. Please be mindful that community members are here to help as part of a community effort. We therefore appreciate your effort in keeping this forum a happy place!

If you have a specific issue (e.g. hardware, failure) and want help from our support team, please use our tech support portal (Support menu - > Contact Us).
Thanks a lot of your help in making a better community.
  • Page:
  • 1

TOPIC:

PWR-ICE + FIR ! 4 years 10 months ago #28911

  • pos
  • pos's Avatar Topic Author
  • Offline
  • Platinum Member
  • Platinum Member
  • Posts: 354
  • Thank you received: 200

The PWR-ICE series just got upgraded with FIR + IIR filters support thanks to a simple software update. With 2300 taps on LF, 300 taps on HF, it's a great starting point for a basic FIR implementation. The IIR banks (10 PEQ IN/6PEQ OUT) can still be used for manual EQ or basic crossover duties.


:woohoo:
Kudos to the miniDSP team !
The following user(s) said Thank You: devteam

Please Log in or Create an account to join the conversation.

PWR-ICE + FIR ! 4 years 10 months ago #28922

  • pos
  • pos's Avatar Topic Author
  • Offline
  • Platinum Member
  • Platinum Member
  • Posts: 354
  • Thank you received: 200
I see that both channels can have up to 21.87 ms of delay.
Could it be possible to make this asymetrical as well to accomodate for the potential delay difference due to FIR processing?
Something like 10 ms max for the woofer section and 31.87 ms for the tweeter section ?

Please Log in or Create an account to join the conversation.

PWR-ICE + FIR ! 4 years 10 months ago #28923

  • pos
  • pos's Avatar Topic Author
  • Offline
  • Platinum Member
  • Platinum Member
  • Posts: 354
  • Thank you received: 200
Another set of questions while I am at it :D

Is the convolution processed using 28bit fixed point arithmetic?
Does it take place before or after the biquads block?

Please Log in or Create an account to join the conversation.

PWR-ICE + FIR ! 4 years 10 months ago #28959

  • devteam
  • devteam's Avatar
  • Away
  • Administrator
  • Administrator
  • Posts: 8971
  • Thank you received: 1299
@ Pos

Glad that you like it...
- Asymetrical delay: Goodness we missed that one.. oops. You're right, let us push this asap
- 28bit fixed point
- Order is FIR - > IIR

Send us your comments/questions. You got a PWR-ICE already? If not, get in touch with us. :-)

DevTeam
miniDSP, building a DSP community one board at a time.

Please Log in or Create an account to join the conversation.

  • Page:
  • 1
Moderators: devteam