rePhase with software DSP?

[Jas0_0]

Hi all,

I have a persistent null around the crossover frequency of my active speakers and I wondered if it’s a phase issue. I’d like to try rePhase to address it, but I apply DSP in software (Audiohijack/Audirvana and Audio Units plugins). Does anyone know of an Audio Units convolver plugin that will apply the suggested output from rePhase, or another means to achieve this using macOS software, or does it only work with hardware convolvers like the miniDSP products?

Many thanks,

James

[Bob Stern]

I'm surprised no one answered this.  You're simply asking whether there are any convolver AU plugins, correct?  In order of increasing price:

 

Melda MConvolutionEZ — Free!

https://www.meldaproduction.com/MConvolutionEZ

 

Home Audio Fidelity

Convolver Plugin is free, but it requires a 2x2 matrix, so you need 2 silent impulse responses for 2 of the 4 IR’s.

https://www.homeaudiofidelity.com/

 

Mellowmuse IR1 ($50).  New version 4.0 released in April.  It supports IR’s as long as 440K samples, i.e., 10 seconds at 44.1 KHz sample rate.  The demo version never expires but inserts silence periodically. 

https://www.mellowmuse.com/IR1A

 

SIR3  ($143 after 25% discount on bottom of page)

https://www.siraudiotools.com/SIR3.php

 

HQPlayer has a built-in convolver that automatically upsamples to output sample rate, but it's $260.

https://www.signalyst.com/consumer.html

 

[Jas0_0]

Thanks so much Bob.  Since posting this I realised RePhase is PC only.  Are you aware of any equivalent software for Mac?

[Bob Stern]

No, but you can run Windows on a Mac for free.  (Excluding the new Macs with ARM M1 CPU chip.)

 

VMware Fusion is now free for personal use.

 

The Windows 10 installer also is free.  Microsoft now allows you to use it forever without buying a license.  The unregistered version merely lacks some customization options that you don’t need.

 

https://www.microsoft.com/en-us/software-download/windows10ISO

[Jas0_0]

Just now, Bob Stern said:

No, but you can run Windows on a Mac for free.  (Excluding the new Macs with ARM M1 CPU chip.)

 

VMware Fusion is now free for personal use.

 

The Windows 10 installer also is free.  Microsoft now allows you to use it forever without buying a license.  The unregistered version merely lacks some customization options that you don’t need.

 

https://www.microsoft.com/en-us/software-download/windows10ISO

 

Aha amazing.  Thanks.  Will give that a try.  Presumably one can save the output from RePhase in a format that can be read by Mac-based Audio Units?

[Bob Stern]

In VMware Fusion, create a Shared folder, which allows a Mac folder to appear as a disk drive in Windows.  Within Windows, copy the output impulse response from RePhase to that folder.

 

I suggest importing it as an impulse response into REW to verify that it looks reasonable.  If so, any convolver plugin should be able to read it.

 

Check the documentation of the convolver plugin for the required format: Mono or stereo; WAV or something else.  32-bit floating point is better than fixed if supported.

[Jas0_0]

Great, thanks Bob.  I'll give this a go.

[Jas0_0]

3 hours ago, Bob Stern said:

In VMware Fusion, create a Shared folder, which allows a Mac folder to appear as a disk drive in Windows.  Within Windows, copy the output impulse response from RePhase to that folder.

 

I suggest importing it as an impulse response into REW to verify that it looks reasonable.  If so, any convolver plugin should be able to read it.

 

Check the documentation of the convolver plugin for the required format: Mono or stereo; WAV or something else.  32-bit floating point is better than fixed if supported.

Sorry one more question.  Are REW and a UMIK sufficient to perform the required measurements for RePhase?

[Bob Stern]

I assume so, but I haven’t used RePhase.  They have their own forum.

 

Be sure to make the measurements with the Mac version of REW, not in the Windows virtual machine.

[Jas0_0]

Thanks again