BRP-PACU for Mac OS X (Intel architecture only)
You should first download and install:
Jack-OS X from
To install BRP-PACU, drag the BRP-PACU icon into the Application folder.
The double-click on BRP-PACU to start.
If Jack-OS X is not present or not running, a warning will appear, and Jack Pilot will open. CLick on "Start" on the JackPilot window, then on "Continue"" on the warning box.
If Jack Pilot does not open, this means that Jack-OS X is not installed correctly.
Never before asked questions
What is BRP-PACU?
- It is an analysis tool to configure any sound system with an equalizer. It compares the
output of the system to the input of the system and allows you to use this data to
perform final equalization by matching the results with actual DSP/EQ.
How do you do this?
- There are many tutorials on doing this, but it takes practice, experience, and a good
ear. You could try: http://www.sounddevices.com/notes/usbpre/usbpre-with-sia-smaart-software/
its a brief introduction to the concept, although the USBPre is not supported by linux as of writing this,
so you couldn't use it with this software. Try the M-Audio usb preamp, its what I use. You
also need a decent omnidirectional calibrated mic (reasonably flat 20Hz-20kHz).
Isn't this software basically like what XYZ company sells for $1100?
Why are you giving it away for free?
- There currently is no Linux port for any of these programs and I needed one. Also I believe
anyone who knows how to perform the transfer function properly on an audio system should be
able to without selling your soul with some ridiculous EULA and forking over $1100. The
barrier to entry in any market should be knowledge and skill, not overpriced tools. There are many
markets already headed in this direction.
What if I try it and it doesn't work?
- Email me and I can probably figure it out. My email is firstname.lastname@example.org. Also try the mailing list,
it should be working.
Why is there no documentation?
- Channel 1 is the output of the system we are observing (measured), channel 2 is the input (reference).
You also need a decent calibrated omnidrectional microphone (reasonably flat 20Hz-20kHz) and either a
USB-Preamp like the 2-channel M-Audio, or a mixer with a 30dB pad or so going into the laptop mic input. No Pad is
neccessary if you are lucky enough to have a laptop or PC with a line input. The headphone out will have the pink noise.
How do you handle a delay between measured and referenced signals?
- There is an automatic delay finding button. You can also insert a custom delay if you want.
Is there a way to find the impulse response?
- It is in the menu under action