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Summary of Contents for Moog SPECTRAVOX
- Page 1 SPECTRAVOX...
- Page 2 “I see my job as being one that must provide the artists with the capability of imparting .” complexity dynamics their music -Dr. Robert Moog -...
- Page 3 — Consult the dealer or an experienced radio/TV technician for help. WARRANTY CAUTION: Please note that any changes or modifications made to this product not expressly approved by Moog Music, Inc. could void the user’s authority granted by the FCC to operate the equipment. SERVICE AND SUPPORT INFORMATION...
- Page 4 NOTE: There is no power switch on your Spectravox. Once connected to the power supply, the unit is On. Spectravox is an analog instrument and should be allowed a few minutes to warm up before use. In cases where it has been left in a cold car overnight, for example, it may take even longer for the oscillator tuning to stabilize.
- Page 5 Spectravox is a semi-modular analog spectral processor based around a ten-band resonant filter bank Ten resonant filters with individual level that explores and expands the topology of the vocoder. Spectravox is both a standalone synthesizer control, individual envelope follower outputs,...
- Page 6 HOMER DUDLEY AND THE VODER As it happened, Moog already had a design for a ten-band filter bank—it was the Moog 907 Fixed Filter Bank, and was one of the cornerstones of his modular synthesizer systems. A vocoder would need two In 1928 Homer Dudley, a researcher at Bell Labs in Manhattan, had a revelation.
- Page 7 (called the “carrier”). In essence, by using a vocoder you are swapping your vocal cords with the drum, or the physical body of a human singer. The Moog 907 Fixed Filter Bank was the essential tool in carrier. You can take any sound (a synthesizer, a drum machine, the sound of an aircraft taking off) and...
- Page 8 Connect the rear AUDIO OUT/ �� of Spectravox to some kind of monitoring system if you haven’t already (a mixer, an interface, or just some headphones) - you won’t hear anything just yet.
- Page 9 CARRIER input. Patch your external signal into the PROGRAM INPUT combo jack and add gain with GAIN LEVEL. Then, on Spectravox’s patch bay, take the PROGRAM output and patch it to the CARRIER input. This will send a stronger signal into the Here you have something like a comb filter—a handful of filters evenly spaced...
- Page 10 Now, let’s explore Spectravox in VOCODER mode. Spectravox is not like contemporary vocoders – its oscillator. lineage comes from the analog filter banks of Moog modular systems, and as such requires a bit more setup to get typical ‘vocoder’ sounds. Even then, its sound is resonant and musical rather than precise and analytical.
- Page 11 In this walkthrough we have covered many of the core features of Spectravox – both in its FILTER synthesis filter bank which shapes the CARRIER. When you set HOLD to ON, BANK and VOCODER modes.
- Page 12 2300 Hz Bandpass Filter 7 VCA CV 7 ENV F TIP: BUZZ is best for when using Spectravox as a filter bank, as your CARRIER is sent to all 10 filters. HISS is best 3200 Hz Bandpass Filter 8 VCA CV...
- Page 13 ‘s’ or ‘t’. VCO FREQ VCO FREQ Sets the frequency of Spectravox’s VCO—from low sub-audio frequencies at a minimum to around 2 kHz at maximum. VCO WAVE Sets the waveshape of the VCO—either a sawtooth wave or a pulse wave.
- Page 14 (Continued) PROGRAM INPUT SPECTRAL SHIFT is an innovative feature that sets Spectravox apart from all other analog vocoders. An XLR / 1/4” combo jack input. Can accept signals from microphones or line Throughout the initial vocoding work done by Homer Dudley in the 1920’s, its refinements through the level audio.
- Page 15 Amplifier (VCA) which is controlled by a decay-only envelope generator (EG). The result is finally - 19 inputs (white text on black) and 17 outputs (black text on white). sent to the output of SPECTRAVOX. The envelope generator may be triggered by either the TRIGGER As an extremely flexible semi-modular spectral processor and vocoder button, the TRIGGER cv input, or from the program signal via the PROG TRIG ->...
- Page 16 NOISE OUTPUT An input for external audio which replaces the VCO on the left of the CARRIER Audio output for the white NOISE generator. MIX knob. Use this to process external signals via Spectravox’s SYNTHESIS CARRIER NOISE filter bank. Accepts line level signals.
- Page 17 THE PATCHBAY THE PATCHBAY (Continued) (Continued) ROW SEVEN FILTER BANDS ROW SHIFT INPUT FILTER BANDS CV input for SPECTRAL SHIFT to jointly move the SYNTHESIS filters up and down the frequency spectrum. A positive signal input here increases the center SHIFT frequencies of the filters and is summed with panel setting of SPECTRAL SHIFT and SHIFT LFO settings.
- Page 18 Spectravox is a semi-modular analog instrument and therefore does not contain any presets—the Your Spectravox can be removed from its case and easily installed into a Eurorack system as a 60HP settings on the panel and patch connections made all determine how it functions at any given time.
- Page 19 SLIP & FALL THREE HANDS ON THE WHEEL SLIP & FALL THREE HANDS ON THE WHEEL NOTES: NOTES: Sequencer pitches are suggestions; adjust to taste. Sequencer pitches are suggestions; adjust to taste. POINT ZERO BATERIA POINT ZERO BATERIA NOTES: NOTES: Tune SEQ 1 and SEQ 2 to desired pitches.
- Page 20 SPIRAL WAYS POLY ROCK SPIRAL WAYS POLY ROCK NOTES: NOTES: Tune sequencers to desired pitches. Tune SEQ 1 and SEQ 2 to desired pitches. Tune SUB VCO 1 FREQ 1 to a Fifth. Tune SUB VCO 2 SUB 2 to a Major 3rd. Tune SUB OSC 1, 2, 3, and 4 to desired chord shapes.
- Page 21 PRESET NAME: PRESET NAME: NOTES: NOTES: PRESET NAME: PRESET NAME: NOTES: NOTES:...
- Page 22 PRESET NAME: PRESET NAME: NOTES: NOTES: PRESET NAME: PRESET NAME: NOTES: NOTES:...
- Page 23 PRESET NAME: PRESET NAME: NOTES: NOTES: PRESET NAME: PRESET NAME: NOTES: NOTES:...
- Page 24 SYNTHESIS FILTER BANDS SHIFT LFO SPECTRAL RESONANCE RATE SHIFT HIGH PASS HISS SHIFT LFO AMOUNT BUZZ FILTER BAND 9&10 OUTPUT WHITE VOLUME BAND BUZZ/HISS NOISE CARRIER VCA MODE FILTER LVL X 10 VCO FREQ CORE FILTER BANDS MODE FILTER BANK PULSE WIDTH VOCODE...
- Page 25 Moog warrants its products to be free of defects in materials or workmanship and conforming to specifications at the pass Filter time of shipment. The Warranty Period is one year from the date of purchase. If, in Moog’s determination, it has been ENVELOPES: VCA EG (Decay) more than five years since the product shipped from our factory, it will be at Moog’s discretion whether or not to...
- Page 26 Devoted to the Design and Manufacture of Electronic Instruments for the Musician...
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