John Curl's Blowtorch preamplifier part II

[john curl]

Go to it, Gapapag. I'm too tired to correct Scott of the DC offset thing.

[tvi]

What you hear could depend on what your hands are doing

"These results also demonstrate the interaction between motor systems and perception. It's really pretty amazing. Imagine you're waving an American flag while listening to one of the presidential candidates. The speech will actually sound slightly different to you depending on whether the flag is in your left hand or your right hand."

[scott wurcer]

Originally Posted by SY

I found it very useful for pedagogical purposes when I taught basic QM- my students intuitively grasped the concept of how long it would take to use beat frequencies to tune a bass; from there, going to quantum uncertainty was a much smaller leap.

My texts are old, we only used the Gabor limit restricted to time and frequency as the conjugate variables. So maybe I'm mistaken about their choice of words, I just have not used it that way in the past.

If you google it in quotes that article and references to it dominates the first few pages, not that that means anything.

[scott wurcer]

Originally Posted by john curl

Go to it, Gapapag. I'm too tired to correct Scott of the DC offset thing.

Just a few terms start making an "asymetrical waveform", I could add more and get it even stronger. There is NO DC here. What are you trying to say, that you can add terms of sin(awt+phi) and get a DC value? Or maybe you can highpass filter a waveform and retain the DC component?

[john curl]

OK, I will put the text up: Look at B(0), where B1 is the fundamental.

[john curl]

From: ANALOG INTEGRATED CIRCUITS FOR COMMUNICATION Donald O. Pederson, Kartikeya Mayaram

[john curl]

More info from the original class notes that the Pederson book is based on. Thanks to Ron Quan for giving me a copy after my originals were destroyed more than 20 years ago in a firestorm.

[john curl]

Here the are

[scott wurcer]

Originally Posted by john curl

OK, I will put the text up: Look at B(0), where B1 is the fundamental.

You're putting waveforms through a non-linearity, you obviously don't understand what I'm talking about.

[Esperado]

Originally Posted by tvi

"In the context of signal processing, particularly time–frequency analysis, uncertainty principles are referred to as the Gabor limit, after Dennis Gabor, or sometimes the Heisenberg–Gabor limit."

The uncertainly apply to quantum mechanics. But, following the Plank's theory, you can set an equivalence in the wave theory. That's why, and as previously demonstrated, washing electrons clean the audio signal.
If you apply the same principles to the matrix (the BQP itself) you can easily demonstrate that the efficiency of a quantum filter is, with a small uncertainty factor, a logarithmic function of its purchasing price.