MATRIXSYNTH: Sky Soundlab Voice Spectra Vocoder SN BE14016598

Tuesday, September 15, 2020

Sky Soundlab Voice Spectra Vocoder SN BE14016598

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via this auction

You can find a demo of one here.

"Up for sale is the rare Voice Spectra Vocoder produced by Sky Soundlab (the same unit alternatively produced by Seekers).

It is in very good used condition with minor rack rash and some cosmetic wear.

It is in fully working functional condition.

Excellent youtube demo linked, it is not of this actual unit!

Comes with power cable. Some more info below:

This has a very clear sound for an analogue vocoder, a big part of why it makes voices so intelligible is the syllable function which inserts noise bursts into the signal for “s” and “sh” syllables. This is a pretty rare feature on an analogue vocoder, and it really helps with intelligiblity. The syllable function is also really cool for creating rhythms.

The Voice Spectra has good reputations in Japan for clear extent, high timbre, and for Speech Tracking Function (STF). STF is basically a pitch- to-voltage converter which functions by reading the glottal pulses of the speech signal. The control voltages from the output of the pitch extractor are fed to the VCO, so that this follow the cadences of the speech signaI. STF is an interesting additional facilities only to be found on more expensive vocoders like EMS.

Everyone familiar with vocoding will appreciate the Voice spectras compressor and Voiced/Unvoiced detector*.

The Voice spectra is a high quality studio-vocoder, appreciated by the staff at music studios, professional musicians, etc. in Japan. The articulation of the output signal is extremely good, being distinguished by remarkable clarity and distinctiveness. This quality of articulation, among other things, is what distinguishes SKY soundlab from other less sophisticated vocoders like the MAM VF11.

Technical specifications:

Mic-line inputs: MIC -40dBm / 47K Line: 0dBm / 20K

Synthesis/Instrument Input: 0dBm / 100K
Output: +0dBm

Filterbank:12 Analysing filters and 12 Synthesizing filters

#01 90 - 130 (Hz)
#02 130 - 190
#03 190 - 280
#04 280 - 410
#05 410 - 610
#06 610 - 900
#07 900 - 1340
#08 1340 - 1950
#09 1950 - 2800
#10 2800 - 4100
#11 4100 - 6070
#12 6070 - 8900

Internal excitation sources: white noise generator and sawtooth oscillator (20-900Hz). Both may be gated by the voiced/unvoiced detector. Oscillator frequency fixed or tracking mode.

Metering: LED for speech and excitation levels"

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