28th December 2012

#

**1****My view on the 'ideal' graphs, and a question about measuring them**

Okay,

I have done a fair bit of research about (home)studio acoustics. I am currently building 12 x 20cm deep panels for my small room, and I have been thinking about buying a mic for measuring the frequency response.

There is a topic on here about the 'ideal' frequency response, and what should be the perfect result for any treated room. In my opinion, there was no clear answer (I've read the first 2 pages..).

I think the perfect frequency response could be measured when you do the measurement outside. Think of a situation where there are no walls, ceilings, or floors, and no sounds. A test would show the perfect frequency response, right?

On the other topic someone mentioned using a headphone (for monitoring), placing it on your mic, and then run the test. This would leave out most of the room's acoustics, so I thought of this would give a proper 'baseline' for me to look up to (sorry for my language, I'm from the Netherlands).

Since I'm a just a poor student, I am refusing to spend 50 quid on a measurement-mic just for a some measuring. I know it will eventually be worth it, but I think I have a better alternative. Here's the setup:

I already have a Rode NT1a, so how about I place my headphones on the rode NT1a, like the guy in the other topic mentioned. This would give me the 'baseline' frequency response that I'm looking for. It would be different when compared to a measurement with a mic build specifically for measuring, but since I'll be doing all my measurements with the same mic, I can compare the measurements to each other. In this way, it doesn't matter wether or not the mic is build for measuring, right?

I think of it like some mathematical equation. When (A * B) + X = (C * D) + X you can just leave the X's out of the equation. Think of the X's as of they are the mic's incapability to measure room acoustics. Since the 'baseline' frequency response is measured with the same mic as the actual room measurement, I will be allowed to compare the two, and get a proper result placing my acoustic panels.

I hope some people are able to understand my what I just said, and I defenitely hope I'm not talking complete bullshit.

Can anyone give their opinion on what I just typed?

Thanks in advance

I have done a fair bit of research about (home)studio acoustics. I am currently building 12 x 20cm deep panels for my small room, and I have been thinking about buying a mic for measuring the frequency response.

There is a topic on here about the 'ideal' frequency response, and what should be the perfect result for any treated room. In my opinion, there was no clear answer (I've read the first 2 pages..).

I think the perfect frequency response could be measured when you do the measurement outside. Think of a situation where there are no walls, ceilings, or floors, and no sounds. A test would show the perfect frequency response, right?

On the other topic someone mentioned using a headphone (for monitoring), placing it on your mic, and then run the test. This would leave out most of the room's acoustics, so I thought of this would give a proper 'baseline' for me to look up to (sorry for my language, I'm from the Netherlands).

Since I'm a just a poor student, I am refusing to spend 50 quid on a measurement-mic just for a some measuring. I know it will eventually be worth it, but I think I have a better alternative. Here's the setup:

I already have a Rode NT1a, so how about I place my headphones on the rode NT1a, like the guy in the other topic mentioned. This would give me the 'baseline' frequency response that I'm looking for. It would be different when compared to a measurement with a mic build specifically for measuring, but since I'll be doing all my measurements with the same mic, I can compare the measurements to each other. In this way, it doesn't matter wether or not the mic is build for measuring, right?

I think of it like some mathematical equation. When (A * B) + X = (C * D) + X you can just leave the X's out of the equation. Think of the X's as of they are the mic's incapability to measure room acoustics. Since the 'baseline' frequency response is measured with the same mic as the actual room measurement, I will be allowed to compare the two, and get a proper result placing my acoustic panels.

I hope some people are able to understand my what I just said, and I defenitely hope I'm not talking complete bullshit.

Can anyone give their opinion on what I just typed?

Thanks in advance