System 55 - 1630 Bode Frequency Shifter - Part1-- What is a Frequency Shifter?

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O.Z. Hall

Күн бұрын

Пікірлер: 24

@cefngwyn 10 ай бұрын

Excellent tutorial, buddy! You've just earned yourself another subscriber.

@ozhalljr 10 ай бұрын

Thanks @cefngwyn ! Part 2 should be out in about a week.

@attorks 10 ай бұрын

Great explanation O.Z. Thanks for sharing.

@ozhalljr 10 ай бұрын

Thanks Martin!

@lord_bermondsey 10 ай бұрын

Glad you made this video. Its an excellent technical discussion of the module and the theory behind it. I was surprised that it was almost 9 minutes of talking, with very few audio examples of what this thing actually does to recognizable input. Pardon the mangle of a well known phrase, "Talking about sound is like dancing about architecture".

@ozhalljr 10 ай бұрын

Lots of examples in part 2 coming w/in a week.

@moogfooger 10 ай бұрын

great work again OZ. I was wondering if you were going to get one of these for your collection. A really interesting piece of gear. Cheers

@ozhalljr 10 ай бұрын

Yes. I got mine a couple of weeks ago. I knew almost nothing about how to use this “bit of kit” prior to researching for this video.

@moogfooger 10 ай бұрын

now everybody has a better understanding. thanks for all your research. Cheers@@ozhalljr

@ozhalljr 10 ай бұрын

Btw, this module meets the Ring Modulator requirement that I listed in my 5 missing features video.

@moogfooger 10 ай бұрын

This gives me some hope that they have not abandoned the 55 series project. Lets hope they put out some other missing pieces.@@ozhalljr

@ozhalljr 10 ай бұрын

Cheers Tony!

@DisciplinedCommotion 10 ай бұрын

Thank you for the video, forgive me, so am I right in thinking the pitch of the note stays the same?

@ozhalljr 10 ай бұрын

@DisciplinedCommotion If I understand the question correctlly ... The outputs will usually have an audible difference in frequency. The (in)harmonic profile will remain the same as you play different notes, if you are 1) using exponential "scale" (1v/octave tracking) and 2) sending the same keyboard control voltage to both the external VCO (Program) and the internal VCO (Carrier). If you (externally) mix the original signal with the Frequency Shifter output, the original signal will be unchanged, but the Frequency Shifter output will remain the same. This probably all sounds like "double speak". Hang with me until Part 2, when I go into the seven different applications. There are so many options, it can get complicated to discuss. Feel free to re-ask the question after you've seen Part 2.

@kdsf12 6 ай бұрын

It's called the overtone series. The fundamental is not an overtone. In music composition, a harmonic is thought of as an instruction replete with specific notation. Most people confuse this.

@ozhalljr 6 ай бұрын

Thanks for the clarification. Here's a discussion which uses both terminologies kzbin.info/www/bejne/Y2nRn2uel5V7btEsi=T3YYB7r1jMSgkYIX&t=230

@s.fields8770 10 ай бұрын

Just an FYI, the German name Bode is pronounced like 'bo-duh.' (my favorite Bode-inspired tool is the Sonic Charge Echobode plugin---great for psychedelic percussion and metallic piano & brass)

@ozhalljr 10 ай бұрын

Did I pronounce it correctly when I said the whole name "Harald Bode"? (c. 0:35 in the video)

@liantrosretrospectiva4134 10 ай бұрын

so there is almost no difference between a frequency shifter and a ring modulator?

@ozhalljr 10 ай бұрын

Great question. There are two Ring Modulators at the heart of the Frequency Shifter circuit. There are several differences: 1) there are separate outputs for the sum and difference signals. this is a bigger deal than it sounds might seem. 2) there is a built in precision VCO that outputs a sin wave. This VCO has "amount of shift" (coarse tune) as well as "zero adjust" (fine tune). Also, the voltage control can be either EXPonential or Linear (in 4 ranges). 3) there is a "mix" output that can crossfade between the two outputs (sum & difference). 4) there is a "noise gate" on the output.

@liantrosretrospectiva4134 10 ай бұрын

@@ozhalljr thanks for the explanation... I thought it was a completely different process but it looks like I could "build" it using a couple of ring modulators and other modules in my rack.

@ozhalljr 10 ай бұрын

@@liantrosretrospectiva4134 almost, but not quite.