Recent content by Dave the Rave

I made some subtle changes in my system again. I always get surprised at improvements even when I thought this is the best my system has sounded so far - hence it's a never-ending tinkering love story. 1. First off, as i played more with Phase correction, I could see the limits. Full range...

@Keith_W That's an impressive preso - thanks for that. Read till slide 60 and I can clearly see the spikes/reflections issues. It confirms why i was not getting great DSP outcome when correcting for higher ranges. My Fs seems to be around 160h (room is open space and untreated - not ideal but...

Thanks Keith. After some reading, hope I found the issue - shifted the Estimated IR Delays (results shown below). Please do review the measurements and will consider any general guidance on correction extent. Mdat attached.

I did some new measurements - one from LP and another 1m from tweeter (hopefully it is quasi-anechoic as impulse was flat except one spike). I actually applied all analog level changes - balance, dialing speaker mid/high knobs and sub xo settings to get the responses I pasted below. Sound...

Thanks for the feedback. I will get a proper measurement for HF - i have a boom stand so will get the measurement done very close to each speaker at tweeter level. Will get 3 measurements for L and R. Is that OK for a quasi-anechoic measurement? I tried DecayCore and it is indeed quite good - it...

Per this thread, before calling it a day, I decided to give Convolution a last red hot go [(thanks to @ddude003, @Keith_W and few others ). I realised i also needed a proper DSP processor hence invested quite some time in getting Camilladsp working in my chain (64bit processing at very low...

I did some more reading. Archimago's essay was quite revealing. I can see why its hard to correct HF unless we get excellent anechoic measurements of the speakers - something I am too novice to try. Hence his explanation to focus more below the Schroeder frequency range looks appealing. Below...

I did use RePhase as it was an optional task in Serko70 methodology - it made a good impact but was painful and I did not know what to achieve exactly. Will go through the reading list and tools suggested (albeit will take time to absorb). Thanks for the suggestions.

In Sydney unfortunately. Sounds like i should give Convolution another go which I am keen to do next after a proper measurement set. Spot on about the observation as I indeed tried getting a perfectly flat response across the full FR in the past (measurements were not great). I was using the...

Pheeew mate what a nice setup - will die to hear how it sounds like. Or better not as it might spur a divorce to get my man-cave back!! Heard good things about GIK Accoustics in the local stereonet forum. Time to venture out a bit. Interesting you use Convolution - I always found them cleanly...

@ddude003 Did some reading on the placement/treatment guide per your post. I will be looking for possible treatment over the long term. However, I did revisit the speaker placement and ultimately, I moved the speakers away from the backwall. I previously had them close to the backwall as...

Thanks Keith. I will get my head around the MTW function and try the suggested option. Just to clarify, how do you use the IR/ETC to determine the reflection (my basic understanding below) - Is the first reflection happening at 0.8m i.e 27cm (.34m per 1m) - Second bigger reflection at 2.4m i.e...

@Keith_W Thanks for the explanation and the video is genuinely instructive. This definitely settled down the FOMO aspect to some extent. Obviously the curiosity took over and I started reviewing the ERB concept. Since a long time, I dialed down the mid/high knobs of my speaker (Yahama NS-1000x)...

Hello, Thanks heaps for the feedback. Appreciate those much better. I used the following DSP steps: 1. IR time aligned to generate vector averages. Generated LR (Vector average) from these R & L channel averages. 2. Applied PEQ at 1.0 slopes above and below 200h at 66db with Var graph. Applied...

G'Day, Ran a new set of measurement over the week-end with a standing mic and MLP. Attached is the updated file and showing the mic in the listening room. - Found that I was using the wrong cal file for the Umik mic since i have 2 !!!! Resolved that issue. - Moved the mic as advised above...