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11

0

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Frequency [Hz]

1

0.8

0.6

0.4

0.2

Amplitude

0

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Frequency [Hz]

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Amplitude

EXPANDABILITY

The shrouded expansion header is dedicated 
to the universal Xaoc Hel expander mod-
ule which offers paraphonic generation of 
3-voice and 5-voice chords in Odessa. Please 
refer to the manual of Hel for details.

Odessa also offers integration with the Leib-
niz Binary Subsystem via another expansion 
header at the back of the unit. Connecting 
an expander like Xaoc Lipsk, allows one to 
enable and disable the individual groups 
of  partials as defined  by the  
bank length 

parameter. To engage this control, press and 
hold the 
voices button for 1 second until it 
starts to blink. At this point, a high state of 
each binary line (for example, a button acti-
vated on Lipsk) turns one group on. The low-
est bit (B

0

) affects the first group (eg. 2

nd

, 3

rd

and 4

th

), the next higher bit (B

1

) affects the 

second group (5

th

, 6

th

, and 7

th

), and so on. The 

highest bit (B

7

) affects all remaining partials 

(from 23

rd

 up). 

note:

 the result of switching individual par-

tials may be subtle. For a more radical effect 
use longer bank lengths. •

Amplitude

5 10 15 20 25 30

Partial number

0

1

0.8

0.6

0.4

0.2

Amplitude

5 10 15 20 25 30

Partial number

0

1

0.8

0.6

0.4

0.2

fig. 9 

signal spectra at the odd partials and even partials 

outputs for length=3 and factor=2

fig. 8 

inharmonic spectra resulting from positive (upper) 

and negative (lower) values of tension

Summary of Contents for ODESSA

Page 1: ...ODESSA variable spectrum har monic cluster oscillator Model of 1975 operator s manual rev 1975 1 0...

Page 2: ...cause serious damage to other components of your system because it will short circuit the 12V and 5V power lines Always pay particularly close attention to the proper orientation of your ribbon cable...

Page 3: ...hes of the comb are from zero no notches at all through moderate just a few notches to a maximum density of 256 where each second partial is fil tered out assuming minimum warp setting This parameter...

Page 4: ...is set to 0 both outputs offer the same full signal If set to 1 each output of fers the same fundamental 1st partial plus its even 2nd 4th 6th etc and odd 3rd 5th 7th etc overtones respectively With...

Page 5: ...5 fig 1 the interface 13 10 14 15 12 16 9 26 23 24 32 8 27 20 11 22 7 21 17...

Page 6: ...4kHz 6 94kHz to 12 5kHz above 12 5kHz Certainly with only 12 bands it offers only a crude overview of what is going on note the color temperature is mapped from dB scale Although the LEDs turn off bel...

Page 7: ...r when comparing the loudness of different waves from a traditional VCO The tilt parameter determines how quickly the spectrum decays how quickly the ampli 7 The spectrum of a saw wave contains all ov...

Page 8: ...ers to the relative frequencies of partials so it scales with pitch Depending on the den sity parameter there may be zero to 256 notches hence at minimum the spectrum is smooth and at maximum each sec...

Page 9: ...ler the frequencies increase slower than the partial numbers which yields a dense rough inharmonic cluster that resembles noise Large negative values of tension may even result in the spectrum folding...

Page 10: ...nd is always present on both out puts with its original frequency unaffected For example with length set to 3 the odd partials output contains the fundamental mixed with 5th 6th 7th 11th 12th 13th etc...

Page 11: ...o engage this control press and hold the voices button for 1 second until it starts to blink At this point a high state of each binary line for example a button acti vated on Lipsk turns one group on...

Page 12: ...ITH A XAOC PRODUCT AFTER THE WARRANTY PERIOD IS OVER NO NEED TO WORRY AS WE RE STILL HAPPY TO HELP THIS APPLIES TO ANY DEVICE WHEREVER AND WHENEVER ORIGINALLY ACQUIRED HOWEVER IN SPECIFIC CASES WE RES...

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