Welcome, Guest
Username: Password: Remember me
Need help configuring your plug-ins? This is the place to ask the miniDSP community for help. Please read manual first to limit 101 questions.

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.

TOPIC: FIR allpass for 2x4HD ?

FIR allpass for 2x4HD ? 3 months 3 weeks ago #43302

  • Sathim
  • Sathim's Avatar
  • Offline
  • Fresh Boarder
  • Posts: 7
  • Thank you received: 1
  • Karma: 0
Hi there,

I'm looking for a software that can build a fir allpass for my miniDSP 2x4HD.
I tried rephase, yet this does not seem to support allpass filters at all.

Greetings from Germany
Matthias
The administrator has disabled public write access.

FIR allpass for 2x4HD ? 3 months 3 weeks ago #43304

  • eclipseaudio
  • eclipseaudio's Avatar
  • Offline
  • Expert Boarder
  • Posts: 84
  • Thank you received: 66
  • Karma: 9
Hi Matthias,

FIR Creator and FIR Designer can do this. They have maximum and minimum phase 1st and 2nd order all-pass filter prototypes, plus a 4th order parametric phase filter prototype (with BW, freq and angle). All prototypes are combined into the one FIR filter.

Kind regards,
Michael
Eclipse Audio
Maker of FIR Designer and FIR Creator - filter design tools for loudspeakers.
www.eclipseaudio.com
The administrator has disabled public write access.
The following user(s) said Thank You: devteam

FIR allpass for 2x4HD ? 3 months 3 weeks ago #43306

  • dreite
  • dreite's Avatar
  • Offline
  • Platinum Boarder
  • Posts: 1283
  • Thank you received: 636
  • Karma: 82
Sathim wrote:
Hi there,

I'm looking for a software that can build a fir allpass for my miniDSP 2x4HD.
I tried rephase, yet this does not seem to support allpass filters at all.

Greetings from Germany
Matthias

Your question/requirement is somewhat confusing. A traditional allpass function would normally be a flat amplitude filter with a frequency-dependent delay. That could implemented with an IIR digital filter, or even an analog filter.

Normally, FIR filters are utilized to generate something that has zero phase distortion. And they (can) have a frequency-independent delay.

If you just want a pure delay, any of the miniDSP units can perform this function.
If you want the traditional allpass function, and of the miniDSP units can perform this function as well.
You don't need a FIR filter for either of those.

Dave.
Last Edit: 3 months 3 weeks ago by dreite.
The administrator has disabled public write access.
The following user(s) said Thank You: devteam
Moderators: devteam