50 HZ spike and room calculations.....

[treitz3]

I have a 50 Hz spike coming from my mains [admittedly not ML speak's] and I have found many a link to calculations with a rectangle shaped room. This is my question....do any of you know where to direct me to go to figure out room nodes and spikes when I have a "V" shaped ceiling running the length of the room?

I would like to correct it without using an EQ. Thanks in advance for any suggestions that you may have.

Tom.

 

[Burke]

A lot of good information can be had from Ethan Winer's web site. http://www.ethanwiner.com/acoustics.html

Ethan also hangs out here from time to time. He is a pleasure to do business with and is always happy to answer questions. http://www.realtraps.com/

 

[Cosmos]

I have a 50 Hz spike coming from my mains [admittedly not ML speak's] and I have found many a link to calculations with a rectangle shaped room. This is my question....do any of you know where to direct me to go to figure out room nodes and spikes when I have a "V" shaped ceiling running the length of the room?

I would like to correct it without using an EQ. Thanks in advance for any suggestions that you may have.

Assuming your mains are ported dynamic speakers, I'd try first buying a plumbing compression test plug of the right size and plugging up the port on your speakers temporarily to see if that resolves your problem. In an attempt to get more bass from a speaker by utilizing a port, most designers end up with a peak above the woofers resonant frequency, often around 50-60 Hz. The reason I suspect this is that a 50 Hz room peak is unusually low.

Further, the easiest and probably most accurate way to correct is, beyond plugging the port, if one exists, is an EQ. There are pro sound equipment designed especially for that purpose.