allgair@fritz.UUCP (Ed Allgair) (02/08/85)
********************************** In article <> jjk@burl.UUCP (jjk) writes: > >I'm also considering buying or building a spectrum analyzer. Does anyone >out there use a spectrum analyzer in conjunction with an equalizer >(and a noise source) to compensate for the room acoustics? I have, when working for a recording studio, used an analyzer to set up equalization for a particular purpose. Usually it was used only to reduce feedback and get the maximum volume out of a public address system. It can be used to obtain as 'flat' a response as possible out of any audio system. It usually only needs to be done once, as the acoustics of a particular room will not change unless you move your speakers, change carpet or drapes, wallpaper, or add a major piece of furniture. For this reason, I suggest borrowing the best analyzer you can find, and trying several equalizers with your system until you find one that can produce the results you like. Buy that one. It is also easier to adjust a system if you have a designated 'listening spot' in your room. If you try to get the best sound all around the room, you'll find that you must compromise. Remember to include the average number of listeners in your room when making adjustments. Bodies soak up a lot of sound. Pay attention to the input path of the noise source. Some preamps have 'strange' bass and treble controls. (Some amps, too.) There won't be a major improvement if your room happens to be very 'good' acoustically already. If that's the case, you may want to save your money. Ed
ron@brl-tgr.ARPA (Ron Natalie <ron>) (02/11/85)
> It is also easier to adjust a system if you have a designated > 'listening spot' in your room. If you try to get the best sound all around > the room, you'll find that you must compromise. > > There won't be a major improvement if your room happens to be very 'good' > acoustically already. If that's the case, you may want to save your money. > Recording studios have pretty much given up on accousta-voicing things in this manner. Once you've set up the EQ, as you have noticed, things are very dependent on the position of the source and observer. While your living room with it's fixed speakers and one fixed listening chair might be helped by this method, most serious people have given it up for finding rooms appropriately sized and furnished. -Ron