Recent content by dotnet

I thought about that, too, but it likely would take a lot of effort to code a framework for that. Post in thread 'AES Melbourne section presentation on REW' https://www.avnirvana.com/threads/aes-melbourne-section-presentation-on-rew.10843/post-81778

Ok, thanks.

I’m trying to use the multiple measurements feature to take a series of measurements of two channels. If I set it up like this: then I get 3 measurements of the left channel. The right channel is ignored. If I do it this way: then I get one measurement each of the left and right channel...

Not sure about the timing reference, but I wonder how practical near-field phase measurements of subwoofers are? No matter how close to the membrane you put the microphone, during the time a single cycle of a 50Hz tone takes to complete (20ms) reflections from the nearest wall or floor would...

Did the gain settings in Audio Midi Setup get cranked up by any chance? On my M1 Mac mini (just like with the 2012 Mac mini before that) it looks like this by default: With the sliders all the way to the right you’d be at +24dB.

REW for macOS comes with a JRE that is a universal binary. It works well as a native app on Apple Silicon Macs.

Adding argument “-c” on the installer command line seems like the logical next step to try.

Thanks John, great talk. I really enjoyed that. Regarding what was discussed right after the end of your slides around complexity vs user friendliness, I think the concept of workflows might help. User might start by selecting a workflow that fits what they want to achieve (“I want to generate...

With a microphone attached to the computer REW is running on. If you’re not interested what comes out of the speakers and only want to see what the amps produce, you need to connect the amp output to an audio interface (ADC) connected to the computer REW is running on.

If the audio system doesn’t have any inputs (analog or digital) and can only playback media from CD or USB stick, you can record measurement sweeps incl. timing reference and play them back for REW measurements. In the Generator tool, you can record measurement sweeps to file, and in the Measure...

That would explain the early reflection at 1ms (ca. 33cm extra travel) – I was about to say, but then I noticed the same early reflection in the “without me” measurement. I‘m sticking to my desk reflection theory. EDIT: Apart from that the ETC looks super clean. Not floor noise but noise...

You reckon that‘s what it is? I thought it’s perhaps reflections off the desk or something. I also noticed the relatively high noise floor in the low frequencies. It shows well in the waterfall but doesn’t seem well correlated with the signal (i.e. doesn’t really look like reverb). Therefore...

Where were you during the “with me” measurment, assuming that the space normally occupied by your head would have been taken up by the microphone? Is this two speakers playing simultaneously, or just one? Or two speakers and a sub? What‘s interesting is that both the “with me” and “without me”...

I’m operating REW from my iPad. The host it actually runs on is an M1 Mac mini, but that doesn’t have a monitor or keyboard attached. Screen sharing to the iPad works very well.

That’s for EQ, right? I believe for subwoofer alignment the speakers (L, R and Sub) need to be measured separately. How exactly you do it depends a bit on how you’re cabled up. In my case (2-channel system, with subwoofer connected to both L and R output of the pre-amp) I measure like this...