Duma Ukrainna

I found this gem whilst trawlling YouTube for more of my favourite rock star.

It's been explained to me that this is a version of a 16th C Hymn, though the other version I heard of it sounded more like a military march, and that Niemen recorded this for a TV show.

Niemen's Duma Ukrainna

An Early Reflection and Data Smoothing in Smaart 6 & 7

A look at a discrete 10ms late arrival with 1dB of difference in Smaart 7 MTW. 1 Sec Complex Averaging.
No Data Smoothing, 1/48 8ve, 1/24 8ve, 1/12 8ve

The same input into Smaart 6 with FPPO. 32 Vector Averages.
No Smoothing, 3 Point, 5 Point, 7 Point

Smaart 7 Multi Time Window, Late Arrivals

Since I got Soundflower working to look at later arrivals, I have redone the less late arrivals in Smaart 7 so they are actually late rather than early. I have not saved each trace as a ref and complied them into the one image because I want to see what the coherance trace is doing.

MTW, 16 Complex Averages, No Smoothing.

Complex and Polar Averages in Smaart 6

Or Vector and RMS in V6 Nomeclature.

50ms delay (from Reaper), 16 Averages. Coherance blanking OFF.

With 5 point Smoothing:

A Comparison with Smaart 6, Late Arrivals

Smaart 6 in FPPO being fed Pink Noise from Reaper via soundflower. 16 Complex Averages, Coherance Blanking at 20%. Measurement Signal delayed in Reaper.

0ms, 0.5ms, 1ms, 2ms, 4ms, 8ms, 12ms, 16ms, 20ms, 24ms, 32ms, 64ms, 96ms, 128ms, 256ms, 512ms

Going back the other way.

To look at delay times longer than 50ms, I have connected the Reaper application to Smaart 7 via Soundflower, which allows me to route audio between applications on the Mac, like a virtual sound card.

So now I am able to delay the measurement signal easily for late arriving data. There is a delay plugin on channel of Reaper to achieve this, it has a 1 sample latency, and the delay in Smaart has been set to accomodate this (0.02ms).

Other parameters are the same, MTW, 16 Complex averages, etc. Delay times of 64ms, 96ms, 128ms, 256ms, 512ms.

Complex and Polar Averages in Smaart 7

Smaart 7 chanaged the nomenclature for its two averaging methods from Vector and RMS, to Complex and Polar. I don't see any reason why the math would have changed though.

Rehased from the last post, a signal arriving 50ms early with Complex (Vector) averaging:
The same measurement with Polar (RMS) averaging:
The two Mag traces with 1/12 oct smoothing turned on: