I am little bit confused where to start the room acoustic analysis for Home theatre setup. First priority is for low end and the second priority is for mid and high end analysis. My question is Whether to choose SPL meter with line out like galaxy audio cm 140 or linear condenser mic like...

Hi all, this is my first post here. So hello to everybody. :smile: I think that I've set up my measurement equipment correct and have made my first measurement with REW with my (super-linear) RME Multiface and my calibrated ECM8000. But I have a questen that I've not found answerd in the...

Hi, Recently miniDSP announced the miniDSP2x4HD. This contains FIR and IIR filters. Which means that it makes minimum phase and linear phase happen. On the other hand the EQ generation facility of REW assumes minimum phase only. Does this idea correct? Or REW provides (or will provide) linear...

Hi guys, I am in the final stages of producing a 3-way pair of stereo loudspeakers which have a flat baffle. I want to try and use the new acoustic reference feature in REW to allow me to accurately measure the impulse response and phase of each driver at the microphone reference point (1m...

I have built a DIY microphone calibrator. With that small construction, I can check the linearity of SPL microphones. I have used that construction to create a calibration map of my SPL: Left I had a Bruel&Kjaer class 1 SPL, right my cheapo SPL. The pistonphone actuator is actually just a...

Hello! I want to export measured SPL from REW EQ not in logarithmic scale, but in linear. My problem statement. Designing software that calculates FIR filter coefficients from measured SPL. User can actually set desired FIR filter length and sampling frequency. So far I have had tried two...

I'm really hoping someone on here can help me. A 'friend' of mine built these speakers for me ... but never completed them (fine tuning/crossovers) :crying: AS you can see in the pictures each speaker has 29 Apex Jr. round ribbon tweeters. 9 Peerless India 5" and one Dayton DCV 8" powered by...

I hope this gets posted right, this is my first post here, but I was wondering if this is an acceptable frequency response or if I should still be striving for more linearity. I am limited to PEQ options because I am not using a receiver and have set the two PEQ's on the SVS as suggested by REW...

Ok thnks i click the link and it works great thnks.. I live in mexico in a place named uruapan michoacan.. I found a problem in a phase linear dvd from jensen a message come on the screen it says something like viewers law or something.. It supose the wire from the image a pink one it must be...

SOLD SOLD SOLD Ok, as I am sticking with my Emotiva amps for my systems these two need to find a new home. One is BRAND NEW, still in sealed box, and the other is an orphan that I pulled out of the box to play with and the wife took the box and shipped something to someone with it! Yes, I plan...

I purchased a Phase Linear DRS400 Power Amp, a Phase Linear P3600 Pre Amp and a Phase Linear T500 Tuner. I can't seem to find much Info. about these on the net. Wondered if anyone would know anything about all or any of these three?

Hi Folks, I have started on my room within a room basement build featuring 3 layers of rock and GG and I am at the planning stages for ventilation. See my signature for the build thread. I plan on building soffits around the theater room as well as the sound lock room. Due to my low 7'3"...

I have a ps3 hooked up to my brand new Onkyo 705...My question is, what is the difference between bitstream and linear pcm? What setting, on the PS3 will give me the best sound?.....Thanks

VLSC (Vector Linear Shaping Circuitry) is found in some of the Onkyo receivers claims to eliminate pulse noise from the analog signal after digital to analog conversion. This pulse noise supposedly taints the signal. I am not educated on DAC. I remember back in the day when aficionados would...