How Much Bass is Enough

[Holmz]

I was told we will also take impulse response. Not sure if thats for phase or what.

Usually impulse response is more of a time-domain thing.
However some measurement that deviates from the “Dirac Delta Function” can show, or give insight into, group-delay.
A step function sort of gives a glimpse of phase, but maybe in a 0/180 sense.

There are more phases than 0 and 180, and some of the subwoofer improvement can benefit from both phase and “group delay EQ”, which is also phase.

It is all pretty easy on paper.
In a room, with walls, and real gear… it often gets a bit more nuanced.

 

[Another Johnson]

Usually impulse response is more of a time-domain thing.
However some measurement that deviates from the “Dirac Delta Function” can show, or give insight into, group-delay.
A step function sort of gives a glimpse of phase, but maybe in a 0/180 sense.

There are more phases than 0 and 180, and some of the subwoofer improvement can benefit from both phase and “group delay EQ”, which is also phase.

It is all pretty easy on paper.
In a room, with walls, and real gear… it often gets a bit more nuanced.

While a true unit step impulse input is defined in the time domain, if you do an FFT, it looks like white noise in the frequency domain. It is a good way to find anomalies between electrical input and audio output. The speakers transfer function will be revealed.

 

[DasguteOhr]

Audiotools actually has its own tone generator and can play all sorts of noise.

Of course milan,
what you need is callbirated microphone with 3.5mm output to feed your system



Either with USB/C or jack for your tablet/mobile phone. A long 3.5m to RCA cable.
Exsample dayton imm 6c available for both inputs

Dayton Audio iMM-6C – Präzises Messmikrofon für iOS/Android, 69,00 €

hs-sound Dayton Audio iMM-6C – Präzises kalibriertes Messmikrofon für iOS und Android. Ideal für Audio-Messungen und EQ-Setup.

www.hs-sound.de

On the back of the packaging is a serial number. Go to the Dayton website and download the calibration file and install it in Audiotool. Your measurement system is ready.