Search Results for ‘measuring’

Hello, I just finished building a pair of speakers and I wanted to take a look at the spl spectrum. I installed REW, got a USB-mic with calibration file and started measuring. When measuring the speakers, I noticed a dip at 500Hz, 4000Hz and around 13-14 kHz. I measured different other speakers...

Now I know the distance from the mic to the speaker should be 1 meter, now is that 1 meter from the front of the speaker cabinet? Or 1 meter from the horn or the drivers mouth??? This measurement should be performed on speaker at a time to see what both speakers are doing correct? The after...

It seems in reading different threads everyone has different ways they measure with REW. Some use the RTA some use the Spectrum mode. Some use uncorrelated pink noise and some use correlated pink noise. What is the proper method with using REW? All I have at my disposal is uncorrelated pink...

Hi, My system has a high latency (around 1sec, due to FIR convolution...). I wonder if it is possible to add an option to delay the stop of the recording playback signal (like in HolmImpulse). I think this improvement would beneficits few people in the same situation as mine (I can circumver...

Hey guys, I'm trying to use the IMD feature on REW and have a couple of questions: - What windowing and overlap settings should I use for the SMPTE and DIN signals? - I remember reading somewhere that the 4:1 dual tones could clip at -3dBFS, but I can' find the link anymore. What level is...

(SOLVED) Measuring one-third octave bands (ISO140-4) Hi there! I've been tasked with measuring the effectiveness of the sound insulation in my studio. The measurements must beet the standards of ISO140-4, and have to be done in third-octave bands. Is REW able to measure SPL in third-octave...

Dear Forum members, I am using REW 5.15 on a Mac and would like to measure the speakers latency of a 7.1 system. Currently I am pulling the cables one at a time to make measurements. The reason is that I get only a stereo (2 channels) at best. It takes a long time. Any better option? My...

Hello. I've been using REW for room measurement for some time, and now want to use it to measure some drivers towards designing speakers. I've gone through the Help section "Impedance Measurement" and still have some questions. Probably the first one to get going is the 100 ohm resistor to be...

I have a UMC-200, UMIK-1 and a mac I am using to try to eq my system. As it is doing a sweep for measuring I am getting a popping sound. What am I doing wrong. How do I get rid of that to get a good measurement? I have the mode set to direct and the eq set to flat on the UMC when I am doing...

Hi all, I wish to measure my speakers and room after the EQ correction which I apply with a VST plugin EQ. Anybody have a solution on how to do this? In other words, route the measurement signal from REW through a VST host which applies the EQ and sends the mic (UMIK-1) signal back to REW. So...

Hi everyone, Is there a way to measure two channel at a time with REW? I mean, sending a stereo signal and get the corresponding measure. Thanks, VK

Hello, did anyone managed to measure absolute delay of signal using two different soundcard inputs (Mic in: Microfon; Line in (as reference): Loopback cabel with signal)? Or is it only possible to use right channel mic in as reference signal (ref in) and left channel mic in for signal...

If I turn my receiver's volume all the way, with no source connected, there is what I think is an excessive amount of noise. How would one go about quantifying it with REW? Simply looking at the SPL meter or RTA doesn't cause anything to stand out. Yet the noise is far from subtle.

I am trying to measure/verify speaker delays and I'm getting strange results. I have the recommended setup from the manual with a sound card. Right line out of the sound card goes to both the sound card left line in, and to the center channel analog AVR input. A RS SPL meter connects to the...

Hello, I've been playing around with REW taking measurements with a UMIK-1. I'm using two subs in the front of my living room. When I made my first measurements in early April, I had the two subs sitting inside my Mains, between the Mains and TV. Based on my measurements, I was advised to...

Since I've been experiencing problems with my Denon x4000 going into protection mode at random times either when playing music to all speakers at normal volumes for about 4-5 hrs or at times 2-3 hrs, i decided to check for shorts on the speaker wires. At first I thought this was an overheating...

Hi to All, I want to use REW to measure the frequency response of my Denon (AVR-2310) which is spec'd as 10 Hz-100 kHz (+1, -3 dB, DIRECT Mode). What would be the best way to do this? Points I have considerd so far: - I have a laptop hooked up to the AVR via HDMI cable - I can set REW...

Feature request. When setting the EQ filters, REW simulates the predicted results. But it cannot actually measure them as it needs an external hardware equaliser. With software equalizers, there is the issue of delay or poor synchronisation. It would be helpful having REW to actually measure...

Hi, I'm trying to measure my USB DAC using REW with the following config: - REW output to USB DAC via Java (tried default output & specific device) - REW input from USB ADC (M-Track Pro) via Java (tried default input & specific device) - 44.1kHz, 24 bits applied to REW, USB DAC and ADC - USB...

I've got J River 20. I can either use a UMIK, or, a calibrated mic via a Tascam US-322. The latter is what I normally use, using the Tascam's ASIO drivers. I always use the Tascam for driving the signal to my AV preamp, as the line out in my laptop does not work reliably. Can someone help...