background image

BugBrand Modular Frames

- - - -

Synth Voice

The Synth Voice is the first of a range of pre-configured BugBrand Modular Frames and contains 
multiple building-block elements for synthesised sound generation. It is largely based on quite 

traditional 'Subtractive Synthesis' methodology (VCO->VCF->VCA), but with a number of tricks up 
its sleeve and, being freely patchable, you are never limited to such linear approaches. It is designed 

to be played standalone, within a larger BugBrand Modular setup or controlled by signals from 
external devices such as  MIDI-to-CV converters or analogue sequencers.

Most modules feature one or more Voltage Controlled (VC) elements, with the main functional 

blocks being :

Oscillators (VCOs) – Waveform generators for sonic or modulation purposes.

Filters (VCFs) – Tonal shapers which subtract and emphasise frequencies.

Amplifers (VCAs) – Signal controllers which govern waveform amplitude.

Envelopes (Envs) – Contour waveform generators with distinct differences from the VCOs.

Mixers – Signal combiners and output mix controller. 

Powered Frame – The system exoskeleton with internal power distribution.

Patching within the system is free flowing due to the use of stackable 4mm banana cables and 

standardised signal amplitudes.

Audio output is on balanced 1/4” jack sockets to interface with standard line level devices such as 
mixers, soundcards and rack effects.

External control signals (eg. 1V/Oct source, Gate signals) can be used or signals taken from the 

modules to external destinations – see the section on Interface Cables.

All modules follow the Frac Rack size standard of 5.25” height (3U) and multiples of 1.5” width. The 
front panels are made of PCB material which provides clear, eye-catching appearance combined 

with durability. 

The system is housed in an aluminium enclosure (frame) which also holds a DCDC power unit and 
internal power distribution. The 12VDC worldwide external power brick is internally converted to a 

b/-15V supply which is distributed to individual modules. The Frame is designed for free-
standing desktop use, but can be fitted with 19” Rack Ears for rack mounting (though typically the 

position of the power input will need to be changed too).

Tom Bugs March 2016

[email protected]
www.bugbrand.co.uk

v.1.1 – 31/3/16 

Содержание Synth Voice

Страница 1: ...ntroller Powered Frame The system exoskeleton with internal power distribution Patching within the system is free flowing due to the use of stackable 4mm banana cables and standardised signal amplitud...

Страница 2: ...bus to individual MTA100 power headers to which the module power cables are connected These system power voltages can be considered as boundaries for signals within the system with the 0 Volt being t...

Страница 3: ...the setting of the main Frequency control dial to determine the operating Cutoff Frequency You can think of a Control signal as being an automated knob twiddler and these can work at sub audio or aud...

Страница 4: ...ial with positive voltages adding to the main sum and negative voltages subtracting As such A bipolar 5V signal will add and subtract from the master control setting For full control sweep set the mai...

Страница 5: ...ds detailed below ensuring that it was externally brought up to suitable 10V P to P amplitude Interfacing with External Systems The Synth Voice can easily talk with other systems or external control d...

Страница 6: ...cay phase changes the envelope back into attack phase without resetting to 0V Loop The output continuously oscillates between 0V and 10V Any gate inputs behave like in Triggered mode ignored during at...

Страница 7: ...modulation patch the Wave output back into the EFM CV input Waveforms are skewed as positive or inverted modulation is brought in Tri Saw produce Log Exp shapes while Sqr produces different pulse widt...

Страница 8: ...P to P 12 k Hz 8V P to P The Sub mode on the left hand section switches in extra filter capacitors to shift the range into sub audio frequencies Low pass corresponds to integration and functions like...

Страница 9: ...source can be made by patching the Out to In A and turning the Initial dial up to near full The right hand unit has only one Main Path input again DC coupled but the response can be swept between Line...

Страница 10: ...lly be used for audio signals The Output Mixer has three DC coupled inputs which feed two separate summing buses via individual Level controls Both 1 4 outputs are AC coupled and are Impedance Balance...

Страница 11: ...tall 3 rack unit and a maximum of 1 65 deep Module Fixing M3 x 10mm Bolt The Frame Chassis and PCB Panels are all connected to Chassis 0V which joins the System 0V by the DCDC converter Thanks to Pal...

Отзывы: