Related Manuals for GRP Synthesizer V22 Analog Vocoder
Summary of Contents for GRP Synthesizer V22 Analog Vocoder
- Page 1 Grp Synthesizer V22 Analog Vocoder Rev 1.3 ® YNTHESIZER V22 A NALOG OCODER ’ WNER ANUAL www.grpsynthesizer.it info@grpsynthesizer.it...
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Page 2: Table Of Contents
Grp Synthesizer V22 Analog Vocoder Rev 1.3 CONTENTS 1. WELCOME 1.1 OPENING AND INSPECTING 1.2 FEW SIMPLE SAFETY RULES 1.3 PROPER USE 2. WHAT IS A VOCODER 2.1 ANALYSIS 2.2 SYNTHESIS 3.0 VOCODER IN ACTION 3.1 WORKING WITH SPEECH/MODULATOR SIGNAL 3.2 WORKING WITH CARRIER SIGNAL... -
Page 3: Welcome
Rev 1.3 1. WELCOME Welcome and thank you for purchasing the Grp V22 Analog Vocoder. Your device is a refined analog Voco- der equipped with a rich configuration of 44 analog filters -24dB/Oct for performing all the classic opera- tions that we are used to considering indispensable in a good Vocoder and much more, guaranteeing you years of tonal satisfaction. -
Page 4: Proper Use
1.3 PROPER USE This device is designed exclusively to produce audio frequency signals. Any other use is prohibited and voids the Grp Synthesizer warranty. Grp Synthesizer is not responsible for damage due to improper use. www.grpsynthesizer.it info@grpsynthesizer.it... -
Page 5: What Is A Vocoder
Grp Synthesizer V22 Analog Vocoder Rev 1.3 2. WHAT IS A VOCODER The Vocoder is an analog circuit conceived in the first half of the last century. Its operation is based on the possibility of adapting the harmonic and energy content of a spoken signal called Speech or Modulator to a second electronic signal - indifferently monophonic or polyphonic - called Carrier;... - Page 6 Grp Synthesizer V22 Analog Vocoder Rev 1.3 section, all 22 filters (as in the case of Grp V22) will simultaneously find full energy to process because the Carrier source was properly chosen to offer a wide and constant range of energy activity, while the Modula- tor signal/Speech can vary its content depending on what is said (the “message”) and the age/gender of...
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Page 7: Vocoder In Action
Grp Synthesizer V22 Analog Vocoder Rev 1.3 3.0 VOCODER IN ACTION While a top level quality analog Vocoder like the Grp V22 works better than a cheaper structure, offering a better quality signal, it is always possible to enhance the functioning of the original circuit by resorting to a few simple behaviors. -
Page 8: Voiced/Unvoiced Selection
Grp Synthesizer V22 Analog Vocoder Rev 1.3 3.3.1 VOICED/UNVOICED SELECTION The Voiced/Unvoiced selection engine allows you to optimize the quality of the Carrier signal by smoothly adapting it to the characteristics of the spoken signal received at the input of the Analysis section; when pronouncing vowels or diphthongs, the Carrier must be sufficiently rich in acute harmonics, but must mainly offer a good amount of energy on the frequencies normally used by human speech;... -
Page 9: Front Panel - Reference
Grp Synthesizer V22 Analog Vocoder Rev 1.3 4. FRONT PANEL - REFERENCE Below, the description of the controls and connections on the front panel of the device. On the Vocoder V22 control panel there are different categories of controls: activity LEDs, knobs to rotate (controls), swit- ches to be activated (with two or three positions), selectors for choosing a behavior, inputs and outputs. -
Page 10: Speech In Section
Grp Synthesizer V22 Analog Vocoder Rev 1.3 4.1.3.2 Changing receiving MIDI channel without turning off the unit If you want to change the MIDI channel without turning off the instrument, first set the MIDI TO CV switch to the OFF position and then move it to ON; the LED starts flashing indicating the start of the previously highlighted MIDI reception/tuning waiting procedure. -
Page 11: Preamplifier Section
Grp Synthesizer V22 Analog Vocoder Rev 1.3 4.3 PREAMPLIFIER SECTION Display and adjust of the level for the microphone signal. 4.3.1 Vu-Meter MIC/LINE LEVEL Displays the level of the Speech/Modulator signal received at the MIC / LINE input. 4.3.2 INPUT GAIN Control Adjusts the level of the MIC/LINE input signal. - Page 12 Grp Synthesizer V22 Analog Vocoder Rev 1.3 Condition 0 ANALYSIS 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22...
- Page 13 Grp Synthesizer V22 Analog Vocoder Rev 1.3 4.5 SLEW SECTION Adjusts the response speed of the Envelope Followers present in the Analysis section of the signal. 4.5.1 FREEZE Switch In the ON position, it freezes the decay of the Envelope Followers, prolonging endlessly the reading of the analysis signals.
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Page 14: Voiced/Unvoiced Sezione
Grp Synthesizer V22 Analog Vocoder Rev 1.3 4.6 VOICED/UNVOICED SECTION It contains all the controls related to the generation of the Carrier signals inside the Vocoder (Voiced-Oscil- lator, Unvoiced-Noise Generator), with the possibility of receiving external signals alternative to those pro- duced internally and the customization of Voiced/Unvoiced operation variations. - Page 15 Grp Synthesizer V22 Analog Vocoder Rev 1.3 4.6.8 Selettore V/UV MODE Selector This command sets how the Voiced and Unvoiced signals are combined before being sent to the Summary section. • VOICED. The Synthesis section only receives the Voiced signal produced by the Internal Carrier oscilla- tor.
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Page 16: Hi Pass Sezione
Grp Synthesizer V22 Analog Vocoder Rev 1.3 4.6.14 LED OVERLOAD Lights up when the EXT VOICED signal exceeds the level allowed by the internal circuit. 4.6.15 EXT UNVOICED Control Adjusts the audio level of the external signal possibly connected to the UNVOICED port. It can be used as an alternative to the internal Noise Generator. -
Page 17: Main Out Sezione
Grp Synthesizer V22 Analog Vocoder Rev 1.3 4.8.3 FREQUENCY Control Adjust the speed of the low frequency oscillator. The range is from 0.02 Hz to 13 Hz. 4.9 MAIN OUT SECTION Sets output level of the Vocoder. 4.9.1 Vu-Meter OUTPUT LEVEL Shows the level of the signal output to the Vocoder. - Page 18 Grp Synthesizer V22 Analog Vocoder Rev 1.3 4.10.2 INPUT - SLEW 0/+5V It allows remote control of the SLEW response speed of the Envelope Followers present in the Analysis sec- tion. By applying a voltage equal to + 5V, the Freeze condition is obtained.
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Page 19: Analysys - Envelope Follower Outputs
Grp Synthesizer V22 Analog Vocoder Rev 1.3 These adjust the output levels of the individual Synthesis bands. They allow to “re-equalize” the signal pro- duced by the Vocoder. If the VCA INIT GAIN command is not at minimum value, it is possible to use the Vocoder as Fixed Filter Bank on the signal present at the EXT.VOICED input. -
Page 20: Rear Panel - Reference
Grp Synthesizer V22 Analog Vocoder Rev 1.3 5. REAR PANEL The Vocoder is housed in a cabinet with standard wooden side panels, but which can be installed in 19” Rack using the special metal fins supplied. The cabinet, which is used to house both the Grp A2 Analog... -
Page 21: Credits And Contacts
Grp Synthesizer V22 Analog Vocoder Rev 1.3 CREDITS & CONTACTS Project: Paolo Groppioni Manual: Enrico Cosimi © 2020 Grp Synthesizers, Via Formello, 17 Monte Porzio Catone 00078 Roma - Italia www.grpsynthesizer.it info@grpsynthesizer.it marketing@grpsynthesizer.it www.grpsynthesizer.it info@grpsynthesizer.it...
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