measurement

  1. A

    Does DAC matter when measuring?

    I use Roon with convolution filter generated from REW measurements. The measurement was done with UMIK-1 connected to PC. PC connected with aux-to-rca cable directly to preamp. Today I started wondering if this should be done through my external DAC. So question is: Should I connect directly to...
  2. K

    measurement standards: noise level / dynamic range / signal to noise ratio

    Where can I find measurement specifications, does anyone know links to current documentation? For example, is it possible to measure the noise level of a sound card with a gain ratio of 1 to 1? (assume the input is ideal and measure only the output) How is dynamic range measured? i.e. 32 bit...
  3. A

    Jitter

    I’m happy with my audio setup, but always looking for ways to improve it further I did room measurements with REW recently and imported the adjusted curve to Roon. My oh my what an improvement At the moment I also use Audioquest Jitterbug, usb-connected from Roon Bridge (RPi with Ropiee) to my...
  4. E

    RTA vs Measurement difference

    Hi to all, sorry for the stupid question. I'm a newbie on REW, and I'm struggling to figure out where I'm going wrong. My setup is composed of a UMIK-II connected to a laptop, a miniDSP HD, and amplifier and a commercial speaker. I did several test to check how it works REW, and I noticed a...
  5. L

    Trouble with REW offline measurement

    Hi there, After treating my room, I was able to dramatically improve the response and REW is such a great help. Peaks and nulls are now +/- 6 db in the sub 250 Hz region... instead of +/- 25 db before treatment! Also the waterfall graph looks so much better now. To bring things further...
  6. T

    Sine Sweep Clipping duing Measurement

    Hello, I downloaded AL today and am trying to get my first measurement in. It is in 2.0 configuration. However; every time I run a measurement I experience clipping. Both the sine sweep itself and the Check Connections clip. I ran the .wav sine sweep files in the measurement directory where...
  7. 5

    Downsampling effects in measurement (44.1 kHz vs. 48 kHz)

    Dear REW community, I was wondering if downsampling affects the measurements with REW. I noticed that the default setting in the sound card settings is 48 kHz. My external sound card does not automatically switch to this value and operates at 44.1 kHz by default. Does this "mismatch" have any...
  8. Mehdiem

    How to approach SUB + L/R measurement?

    Hi, I’m a newbie to REW. I have some confusion about sub measurement as follows: - When I perform the measurement of L+R should I keep my sub on or off? - if I should keep it on, what should I set the sub volume and crossover to? - If I should turn off the sub and measure it separately (with...
  9. B

    use filters for measurement

    Hi, what I'm really missing is that I could do a measurement with my filters beeing active. I can add the filters to my player (Roon) but it is of course not used in REW for any new measurement. Doing a measurement with my filters beeing active would really help to get a good result. Maybe I...
  10. B

    Wrong parameters measured

    Hello, i`m Bruno from Brazil. Here we don`t have access easily to DATS V3 and is so expensive to import, it`s my hobbie and I can`t expense all that money to study only. I saw a video about measuring TS parameters with REW (), i made the cable and bought a USB soundcard like this: I did...
  11. Cristianolo

    Capacitors, inductors and resistors measurements

    Hi all. Is there some tutorial about the right way to measure passive components using REW?
  12. M

    Loopback delay feature

    Hello, John. Please, can you add a delay on loopback input? It's very useful for time alignment between loudspeakers range. For example: 1) I'm starting measurements from HIGH band of my loudspeakers system, and seen phase response something like first picture, because I actually have delay...
  13. S

    Why did my room frequencies change?

    Hello to all, I'm Sean. I noticed on April 10th earlier this month that when I measured the frequencies in my room I received a measurement of -8.7 as a final result. My room measurement came back flat. However yesterday when measuring again I received a measurement of 31.2. My room is treated...
  14. 2

    Setup RME UFX

    With the UFX or a similar multichannel interface REW only knows L and R as inputs and outputs. So, in the Audio/MIDI application under Configure Speakers choose Analog 1 and Analog 2 as output (software playback). Sound from REW will be routed now to these channels, which in TotalMix can be...
Top Bottom