twisted electrons MegaFM, User Manual

Page 1: ...ing MEGAfm the product of several years of work play We are particularly fond of the YM2612 as they offer a unique gritty texture that is uncommon in the FM word plus hands on FM experience that is un...

Page 2: ...erall frequency and data for how to turn this frequency into the complex final wave form the voice This conversion process uses four dedicated channel components called operators each possessing a fre...

Page 3: ...ere are four dedicated operators per voice which may be arranged in eight different configurations called algorithms Following is a diagram of the algorithms Slots are indicated by shading Envelope Sp...

Page 4: ...d in the above diagram are Thanks MAXIM for the above excerpts https www smspower org maxim Documents YM2612 TL Total level the highest amplitude of the waveform AR Attack rate the angle of initial am...

Page 5: ...Mono Mode When a single TS 6 35mm jack is plugged into output1 both chips are summed to output1 Stereo Mode When a second TS 6 35mm jack is plugged into output2 the 2 chips will be split between outp...

Page 6: ...In all other modes you can detune the voices either by 1 semitone or 1 octave See setup to choose between the 2 options Glide When you hold the voicing button the fat knob becomes glide Adding glide...

Page 7: ...erator1 feedback Note both parameters can be modulated by LFO Vibrato Use the depth knob to add vibrato to the overall pitch of MEGAfm Use the vibrato rate knob to set the vibrato s speed The vibrato...

Page 8: ...c display The arpeggiator chooses and plays any of the held keys at random Random2 shown as r2 on the numeric display The arpeggiator chooses and plays any notes at random Sequencer1 and 2 shown as S1...

Page 9: ...put a note the step recorder will advance and the numeric display will show the current step You can use the preset up button to skip a step No note will be played You can also go back a step with the...

Page 10: ...a chain link button Click the chain button a second time to unlink a knob or fader from an lfo The LED above the chain button indicates whether the modulator is linked or not Each knob or fader can li...

Page 11: ...blink to indicate the rate of the LFO Note an LFO can modulate both rates and depths of other LFOs but not those of itself retrig When this feature is active each keypress will retrigger the LFO from...

Page 12: ...be edited and stored and preset banks can be transferred to and from a computer via MIDI SYSEX Loading a Preset Simply press the preset up and down buttons to load a preset To change bank press prese...

Page 13: ...is reset Once you have selected the destination slot number you can either press preset up down again to confirm or wait a few seconds for the numeric display to stop flashing Preset reset panel upda...

Page 14: ...ere are the things that can be set LFO1 to 3 sync to incoming MIDI clock Turn the respective LFO rate knob to choose whether to link LFO1 2 or 3 to the MIDI clock Above 12 o clock the setting is on be...

Page 15: ...meric display The numeric display will indicate Ve followed by On or Of Mod wheel controls LFO2 Turn the vibrato depth knob to choose whether to control lfo2 with the mod wheel With this option activa...

Page 16: ...on below the setting is off The setting is indicated by ON OF on the numeric display MIDI THRU Press the LFO1 link button to toggle MIDI THRU on off When on all incoming MIDI is sent to the MIDI outpu...

Page 17: ...tting MultiChannel MPE mode MEGAfm has a special multichannel mode that allows you to control it with an MPE device with multichannel pitch bends in this mode you can continuously bend each voice with...

Page 18: ...LOBAL FM Algorithm 4 1 8 Feedback 3 0 127 Fat 28 0 127 Volume 7 0 127 OPERATOR 1 Op1 Detune 18 0 127 Op1 Multiplier 27 0 127 Op1 Total Level 19 0 127 Op1 Attack Rate 29 0 127 Op1 Decay Rate 21 0 127 O...

Page 19: ...TOR 4 Op4 Detune 47 0 127 Op4 Multiplier 39 0 127 Op4 Total Level 38 0 127 Op4 Attack Rate 46 0 127 Op4 Decay Rate 33 0 127 Op4 Sustain Level 41 0 127 Op4 Sustain Rate 43 0 127 Op4 Release Rate 35 0 1...

Page 20: ...the presets MEGAfm will reboot when finished To upload a half bank to MEGAfm from a computer hold preset UP at startup Then choose a BANK using the 6 LFO waveform buttons Press the BANK button again t...

Page 21: ...ith recommended software via a MIDI interface The LEDS will blink during the transfer and MEGAfm will reboot when complete For SYSEX transfers we recommend SYEX LIBRARIAN for MAC and MIXIOX for Window...