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BUZZZY! module

User and service Manual

Revision 1.0 EN - 27/01/2020

for Firmware V1.21 - 08/10/2019

Fr´

ed´

eric Meslin / Fred’s Lab

January 27, 2020

1

Summary of Contents for Buzzzy

Page 1: ...BUZZZY module User and service Manual Revision 1 0 EN 27 01 2020 for Firmware V1 21 08 10 2019 Fre de ric Meslin Fred s Lab January 27 2020 1...

Page 2: ...manual other than those required by the local laws Fre de ric Meslin Audiogera te Herwarthstra e 20 53115 Bonn Germany info fredslab net http fredslab net Support requests For support requests you ca...

Page 3: ...Serge Beauchamp The German version of this user manual was translated by Fanny Homberger and the French version by Benoit Ruelle Also this project wouldn t have been possible without the financial sup...

Page 4: ...tack and Decay 17 7 1 1 AD envelope 17 7 2 Hold Velocity Looping 18 7 2 1 AHD envelope 18 7 2 2 Looping envelope 19 7 2 3 Velocity 19 8 Mixer 20 8 1 Volume Pan 20 9 FXs 21 9 1 Selection configuration...

Page 5: ...1 Loading a multi 28 12 2 Saving a multi 28 13 MIDI implementation 29 13 1 Channel Voice Messages 29 13 2 System Real Time Messages 30 13 3 Controller Changes CCs 31 14 Sysex implementation 33 14 1 S...

Page 6: ...ay more notes simultaneously the older voices will be muted and reused for newer notes This mechanism is called voice stealing and will result in audio artifacts or parts of your music not being playe...

Page 7: ...USB ground loop problem Fortunately there are several solu tions to overcome this problem Solution 1 Use an other USB power source power bank or wall adapter Connect the instrument to the computer wi...

Page 8: ...ereo jack cable An adapter is required if your headphones have a 6 35mm jack cable Step 2 MIDI Connect the Buzzzy MIDI DIN input MIDI IN to your MIDI compatible controller or sequencer computer using...

Page 9: ...t DIN connector for a MIDI compatible controller or sequencer It should be attached to a MIDI Output DIN connector of an other device 3 HEAD This is the headphones output connector to attach an headph...

Page 10: ...the Arp switch pressed the Arpeggiator tempo can be adjusted DECAY This potentiometer 1 adjusts the envelope decay time 2 adjusts the envelope attack time of all notes currently played With the Arp sw...

Page 11: ...When the alt state is locked the part LEDs are all blinking 3 ARP This is the Arp enable switch By pressing it the Arpeggiator is either enabled or disabled The LED above the switch display the curren...

Page 12: ...s Space and Delay FXs are mutually exclusive The Delay LED at the switch left indicates the state of the FX Using the Alt switch one of the 3 available Delay FX can be selected 7 FILTER This is the Fi...

Page 13: ...ariations available N Name Description 1 Square Square wave 2 Pulse25 Pulse with 25 00 PW ratio 3 Pulse12 Pulse with 12 50 PW ratio 4 Pulse6 Pulse with 6 25 PW ratio 5 Alt38 Alternate pulse with 37 50...

Page 14: ...Hard 1 2x Sine Sine with 60 phase modulation 4 1xSoft 1x Sine Sine with 15 phase modulation 5 1xMedium 1x Sine Sine with 30 phase modulation 6 2xSoft 2x Sine Sine with 15 phase modulation 7 3xSoft 3x...

Page 15: ...ne wave 4 DoubleSine Sum of two sine waves octaves 5 Triangle A regular triangle wave 6 FlatTri A slightly clipped triangle wave 7 SlantedTri A phase distorted triangle wave 8 DoubleTri Sum of two tri...

Page 16: ...ent sampling rates Pitch bend control can be used to adjust the noise filters respective cutoff frequencies List of variations available N Name Description 1 NoiseLP low passed colored noise 2 NoiseBP...

Page 17: ...nimum Times range from very short 1ms to extended 18s 7 1 1 AD envelope This is the default behavior of the envelope When a note is triggered its associated voice AD envelope rises from the minimum to...

Page 18: ...in looping mode 7 2 1 AHD envelope This mode is similar to the AD envelope excepting it has an hold phase When a note is triggered its AHD envelope rise from the minimum to the maximum level When the...

Page 19: ...inimum level and no longer loops The note is then terminated and its related voice is released Remark Looping envelopes have great use for sound effects percussion noises and pulsating chords 7 2 3 Ve...

Page 20: ...available level and pan To adjust the level turn the Level potentiometer To adjust the pan maintain the Alt switch pressed or lock the alt state and turn the Level potentiometer Remark To avoid sound...

Page 21: ...d there was a Delay FX already engaged the later is disabled and vice versa A Filter FX can always be added to a time time domain effect Effects have four parameters range depth model mix mod for filt...

Page 22: ...The effect produces stereo filtered reflections The decay of the reflections is set with the decay Range pot parameter and the room size using the size Depth pot parameter 9 2 2 Reservoir Reservoir i...

Page 23: ...eedback parameter extend to infinite repeat allowing drones and ambient lush sounds 9 3 2 Ping pong The ping pong delay is very similar to the mono delay The essential difference is the repetitions co...

Page 24: ...er order is fixed and is 24dB per octave or 4th order 9 4 1 Low pass The low pass filter only keeps frequencies below its cutoff frequency The frequencies above this limit are progressively attenuated...

Page 25: ...f the control applies a slow mod ulation and using the right half a fast modulation The closer the Range potentiometer is set to its extremities the strongest is the modulation 9 4 5 Distortion The fi...

Page 26: ...the free running mode when no other clock source is available Tempo for free running mode only is set by holding the Arp switch down while turning the Wave potentiometer 10 3 Divisions Repetitions Gat...

Page 27: ...nnels 1 2 3 and 4 are mapped to parts 1 2 3 4 respectively In this configuration MIDI notes sent on channel 1 will be played by the Buzzzy instrument 1 and so on It is possible to change this attribut...

Page 28: ...ever switch the machine off while saving a multi This will result in the corruption of the flash memory and all user data stored will be definitely lost 12 1 Loading a multi Press the store switch mul...

Page 29: ...ote velocity 0 127 Note On Starts the playback of a note Byte 0 1 2 Data 0x9c note velo c MIDI channel 0 15 note MIDI note 0 127 velo note velocity 1 127 Note a velocity of 0 corresponds to a Note off...

Page 30: ...ors if enabled Byte 0 Data 0xFB Clock stop Stop all parts arpeggiator Byte 0 Data 0xFC Clock tick Synchronizes the MIDI master clock of the sound module A tick corresponds to 1 24th of a quarter note...

Page 31: ...ditor The messages consist in 3 bytes the status byte followed by the control number byte and then terminated by the control value byte Here follows the list of supported messages Controller Change Mo...

Page 32: ...A Filter cutoff center frequency Engine 75 0x4B Oscillator engine Filter mod 80 0x50 Filter modulation rate amount Space mix 82 0x52 Space mixer level Delay mix 83 0x53 Delay mixer level Space model 8...

Page 33: ...sent back without any alteration to restore a previous memory configuration 14 1 Sysex requests Globals request Request the globals configuration from the memory Byte 0 1 2 3 Data 0xF0 0x00 0x00 0xF7...

Page 34: ...l 0 to 15 5 part 2 MIDI channel 0 to 15 6 part 3 MIDI channel 0 to 15 7 part 4 MIDI channel 0 to 15 Mastertune is in thousandth of a semitone Bendrange is in semitones Multi dump Request a specific mu...

Page 35: ...ach part 0 1 coarse 2 3 fine 4 5 wave 5 6 decay 7 8 level 9 10 variation 11 12 attack 13 14 pan 15 16 reverbDecay 17 18 reverbDiffuse 19 20 reverbMix 21 22 delayLength 23 24 delayFeedback 25 26 delayM...

Page 36: ...Failing to observe the update procedure may simply brick your device Therefore please proceed carefully To update your Buzzzy instrument to the latest firmware revision please refer to the appropriate...

Page 37: ...approximately USB classification USB 1 1 full speed 12 Mbit s USB MIDI Class Compliant device Power requirements 5V 5 75mA maximum 375mW maximum Line output characteristics 8 5dBu 2 1VRMS 5 8Vpkpk pe...

Page 38: ...SMD equipment Fred s Lab is always available for maintenance and repair of your musical instru ments so do not hesitate to contact the support service for a free quote Spare parts can be directly orde...

Page 39: ...17 SCHEMATICS AND BOM 39...

Page 40: ...17 SCHEMATICS AND BOM 40...

Page 41: ...17 SCHEMATICS AND BOM 41...

Page 42: ...17 SCHEMATICS AND BOM 42...

Page 43: ...17 SCHEMATICS AND BOM 43...

Page 44: ...17 SCHEMATICS AND BOM 44...

Page 45: ...equipment conforms to the following requirements EN 55032 2015 emission EN 55035 2017 immunity EN 61000 4 2 2009 ESD EN 61000 4 3 2006 A1 2008 A2 2010 immunity EN 61000 4 8 2010 immunity EN 61000 6 3...

Page 46: ...hout the approval of the manufacturer can void your authority to operate this equipment Note This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to...

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