Recent content by jamieh

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A Solution to Wow/Flutter?

Nicely done. And that my friends is why this is such an important breakthrough if we do say so ourselves. The distortion reduction is important. That's exactly what was being "unmasked" in the Stevie Wonder example. I would imagine that many people don't hear a massive difference - we have to...
- jamieh
- Post #33
- Oct 24, 2012
- Forum: The Pro-Audiophile By Bruce Brown
J
A Solution to Wow/Flutter?

Actually that's not how it manifests. Here's the FM theory: there should be two sidebands in your graph around the music tone, + and - beat frequencies. An A440 flute tone with a 0.1% flutter of 60Hz and 120Hz (typical with AC cogging motors) will have sidetones of 500 660 and also 380 and 320...
- jamieh
- Post #31
- Oct 24, 2012
- Forum: The Pro-Audiophile By Bruce Brown
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A Solution to Wow/Flutter?

Thanks!!! Jamie Howarth Plangent Processes
- jamieh
- Post #29
- Oct 20, 2012
- Forum: The Pro-Audiophile By Bruce Brown
J
A Solution to Wow/Flutter?

Actually we do output a 24kHz carrier that has all the wow and flutter encoded within it, and that can be recorded at 88.2/24 if need be. To capture the bias "raw" you need the higher fs. Noise shaping in DSD converters moves the noise into the area we are trying to dig out. We could potentially...
- jamieh
- Post #27
- Oct 19, 2012
- Forum: The Pro-Audiophile By Bruce Brown
J
A Solution to Wow/Flutter?

Thanks for listening. Hoping soon that we can put together a more dramatic test... it's all about the s/n of the FM modulation... Which in this case was pretty bad. We didn't expect much of this test, and I would maybe have wanted you all to hear something a little more obvious, but thanks to...
- jamieh
- Post #26
- Oct 19, 2012
- Forum: The Pro-Audiophile By Bruce Brown
J
A Solution to Wow/Flutter?

Yup. That's true, too. The bell sound of cymbals (the pang vs the swish) is masked by fast flutter and scrape flutter. The bass modulation is slight wow. It's working. Again, this is a rather subtle improvement compared to what's possible, but you guys are hearing exactly the correct attributes.
- jamieh
- Post #25
- Oct 19, 2012
- Forum: The Pro-Audiophile By Bruce Brown
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A Solution to Wow/Flutter?

You are correct, and that's absolutely typical of the commentary and characterization. Yes it's closer to the master. It's our postulate that what was thought of as magnetic loss or electronic loss is actually IM caused by the transport. Happens every time. This particular sample is more subtle...
- jamieh
- Post #24
- Oct 19, 2012
- Forum: The Pro-Audiophile By Bruce Brown
J
A Solution to Wow/Flutter?

All frequency variations create sidebands, that's how FM works... as for the last statement that's a bit upside-down ... in truth the sidebands are NOT masked by the signal since they are not harmonically related. At the least it creates thickening ( "generation loss") and in the case of higher...
- jamieh
- Post #23
- Oct 19, 2012
- Forum: The Pro-Audiophile By Bruce Brown