I think I get it now...
The rectifier basically converts the signal to DC/a flat line. So obviously alternating the amplitude of DC in the shape of the original signal recreates that signal (since the DC is a straight line). (I know it's actually the opposite order, but I think that's the...
Yeah, Fender calls their whammy bars tremolo and their tremolo effects vibrato, they just have them switched up.
Anyway, I started experimenting using a plugin/program called Mondomod. I generated a sine wave, and then used AM modulation on it, I was able to see the side bands Then, I rectified...
Yeah, they sound similar, which is why they're often used interchangeably, for example, Fender amplifiers often have tremolo switches that are called Vibrato.
But the Monomod software I'm going to try actually labels tremolo as AM and Vibrato as FM, so I'm feeling optimistic.
Well guitar tremolo can be done by just picking the string very quickly up and down. Think Dick Dale.
Or it's done through an amplifier (electronics) in this case Buffalo Springfield
(Both are pretty "slow" obviously)Anyway... haha
There is a program called MondoMod that let's one do high...
Musically speaking, tremolo is when the amplitude is modulated, vibrato is when the pitch is modulated, that's why I thought they might be good analogies.
Sorry, here's the demo
"I converted into mp3 and then ran it through a software program that rectified it. Then I lowpassed it so frequencies above 500 hz were removed (the carrier frequency is 558)"
Ok so i'll do another low pass at 225 hz (or 200 to be safe)
there won't be much audio in...
So this seems to be an interesting demo
I converted into mp3 and then ran it through a software program that rectified it. Then I lowpassed it so frequencies above 500 hz were removed (the carrier frequency is 558)
It did indeed sound smoother.
But why does the rectification lower the distortion?
Playing around with my synthesizer, I am able to see the sidebands develop as I increase the rate of modulation (up to a point)
The only clumsy part is I'm having to do it with a triangle wave, which is the closest I can get to a Sin.
But I can still see the sidebands develop around the...
When I have a bit of free time, I'm going to see if I can mess around with my synthesizer/recording software to try and see if I can encode/decode AM that way. Would help me understand it intuitively.
I'm familiar with Fourier transforms in the sense that I know what they are and (in some cases) what they're used for. And just generally looking at spectral analyzers, looking at waveforms, playing with tools/toys like this http://www.falstad.com/fourier/
So I'm quite familiar with Fourier...
Thank you for clarifying the multiplication bit.
I guess I was trying to understand it in a less mathematical way. For example my understanding of FM is that you basically convert the signal to a "vibrato" which then modulates the carrier frequency. The detector then outputs 0v when the carrier...
Thanks, the multiplication bit is helpful in trying to get an intuitive understanding.
Based on my username, you can probably parse that I'm coming at this from a musical background. So maybe using this scenario would be helpful (for me)?
So if, for the sake of my understanding... If I had a...
I know what a rectifier does in terms of converting to one polarity, but I don't yet understand it's relevance to this application.
I'm fairly knowledgeable in terms of wave physics, overtones, modulation, etc (just from working with audio), but know very very little about electronics and...