Well, last night as I was toiling into the wee hours of the night, I sat, gazing upon the loneliness of the Audio input used for open system. What a fantastic feature open system is, but alas, I never really got around to trying it.
But I began thinking, I wondered if a simple dynamic microphone would operate through the open system. I quickly grapped my high impedence cord and plugged it in. I could faintly hear my voice through my headphones. Needless to say, my hopes were shot. Fortunately, I had my original Micromoog user's manual lying right beside me. Flipping to the open system section, I notice it indeed explained how to do exactly what I was attempting. It also went onto explain that preamplification is most likely neccessary for dynamic microphones.
No problem! I used a bass amp for a simple preamp, mainly because I was too lazy to go downstairs and fetch the rack mount. But lo and behold! It worked! I could now filter my voice! This alone sounded fantastic, and made for some really neat vocal fadeouts. I realized that this had serious potential for a cool vocoder effect.
I immidiately looked toward the modulation section. After some experimenting, I finally achieved the ultimate Micro Moog vocoder effect.
Ugh, I'll have to post the patch soon.
Turn your Moog into a vocoder! Patch included!
-
LetsGetElectric
- Posts: 7
- Joined: Tue Feb 03, 2004 10:23 pm
- Location: Philadelphia, PA
- Contact:
Turn your Moog into a vocoder! Patch included!
Your smile grew thin as your family talked, arrived singing just a holiday song that didn't stop until you drank too much.
How come I'm so out of touch?
How come I'm so out of touch?
mmm.. a vocoder is a system based on complex specctral amplitude modulation.
Since the human voice has very complex evelopes for each part of the spectra, the only way to obtain an ANALOG vocoder is to analize the voice trhu N numbers of parallel filters + envelope followers (called analizer section) and use such envelope signals to amplitude modulate a same number of VCAs wich are feeded by the same number and type of parallel filters (here the filters analize a Synthesizer tone by the way and are called synthesis section).
There's no other way to obtain a vocoding effect (except convolution in digital domain with fft algorithms and complex multiplication).
The numbers of filters (allways 1 LPF, 1 HPF and N numbers of BPF) can be 8 (both for analisis and synthesis sections) or much more. The more are the filters, the more the amplitude modulation is precise so the speech is understandable.
A tipical vocoder have 16 or 24 filters for each section + HPFs and LPFs.
2 lpf (or 1 lpf and 1 hpf) can't be enough, not to mention the fact that you have just 1 VCA and no Envelope followers at all...
Since the human voice has very complex evelopes for each part of the spectra, the only way to obtain an ANALOG vocoder is to analize the voice trhu N numbers of parallel filters + envelope followers (called analizer section) and use such envelope signals to amplitude modulate a same number of VCAs wich are feeded by the same number and type of parallel filters (here the filters analize a Synthesizer tone by the way and are called synthesis section).
There's no other way to obtain a vocoding effect (except convolution in digital domain with fft algorithms and complex multiplication).
The numbers of filters (allways 1 LPF, 1 HPF and N numbers of BPF) can be 8 (both for analisis and synthesis sections) or much more. The more are the filters, the more the amplitude modulation is precise so the speech is understandable.
A tipical vocoder have 16 or 24 filters for each section + HPFs and LPFs.
2 lpf (or 1 lpf and 1 hpf) can't be enough, not to mention the fact that you have just 1 VCA and no Envelope followers at all...
-
themicromoogmassacre
- Posts: 17
- Joined: Fri Apr 16, 2004 4:52 pm