![MOOG Sirin [10/30] Signal flow](/img/pdf.png)
MOOG Sirin [10/30] Signal flow
![MOOG Sirin [10/30] Signal flow](/views2/2008017/page10/bga.png)
SIGNAL FLOW
To understand how the Sirin generates sound, take a look at the diagram
below. It shows the flow of Audio, Control Voltage and Modulation signals in
the Sirin. Heavy lines indicate audio signals, which flow from left to right.
Lighter lines indicate Control Voltages (CV’s), which flow from the top and
from the bottom. Dotted lines indicate Modulation routings.
Sirin’s source signals are created by two Voltage-Controlled Oscil-
lators (VCO) which are mixed with the External Audio Input. The Mixer
Output is routed to the Filter, where the tone is sculpted according to the
Filter parameters and the Filter ADSR Envelope. The signal is then passed
to the Amplifier (VCA) stage, where the Volume ADSR envelope shapes it.
Finally, the signal is routed to the Output section, where the final level is
set by the Volume control knob.
For most users, MIDI will be the main source of control for Sirin. Each time
Sirin receives a MIDI “Note On” command, it produces a Pitch CV and
Gate signal in response. The Pitch CV signal sets the Pitch of the Oscillators,
while the Gate signal triggers the Filter and Volume ADSR Envelopes.
The Sirin can also be operated via CV and Gate trigger connections,
for a more ‘old school’ method of control. Both control methods (MIDI &
CV/Gate) can be used at the same time, although some combinations of
control signals may cause unpredictable results.
NOTE: DIN MIDI IN is not passed to USB MIDI OUT
PITCH CV INPUT
OSCILLATORS MIX FILTER VOLUME
HEADPHONES
ENVELOPES
GATE INPUT
MIDI IN >
VCA
(AMPLIFIER)
AUDIO
OUT
AUDIO INPUT FILTER CV INPUT VOLUME CV INPUT
FILTER
ADSR
PITCH CV
GATE
MIDI/CV CONVERTER
MODULATION
(LFO)
VOLUME
ADSR
1
2
/
/
8
Содержание
- Minitaur 3
- Important safety instructions 4
- Contents 5
- Setup and connections 5
- Unpacking and inspection 5
- Setup and connections 6
- Unpacking and inspection 6
- Overview and features 7
- Overview and features 8
- For most users midi will be the main source of control for sirin each time sirin receives a midi note on command it produces a pitch cv and gate signal in response the pitch cv signal sets the pitch of the oscillators while the gate signal triggers the filter and volume adsr envelopes 10
- Note din midi in is not passed to usb midi out 10
- Signal flow 10
- Sirin s source signals are created by two voltage controlled oscil lators vco which are mixed with the external audio input the mixer output is routed to the filter where the tone is sculpted according to the filter parameters and the filter adsr envelope the signal is then passed to the amplifier vca stage where the volume adsr envelope shapes it finally the signal is routed to the output section where the final level is set by the volume control knob 10
- The sirin can also be operated via cv and gate trigger connections for a more old school method of control both control methods midi cv gate can be used at the same time although some combinations of control signals may cause unpredictable results 10
- To understand how the sirin generates sound take a look at the diagram below it shows the flow of audio control voltage and modulation signals in the sirin heavy lines indicate audio signals which flow from left to right lighter lines indicate control voltages cv s which flow from the top and from the bottom dotted lines indicate modulation routings 10
- Basic operation 11
- Oscillators 11
- Panel controls for the oscillator 11
- The components 11
- Basic operation 12
- External control 12
- Midi accessible control 12
- Oscillators 12
- Panel controls for the oscillator 12
- The components 12
- Filter 13
- Midi accessible contol 13
- Midi accessible control 13
- Mix oscillator levels 13
- Panel controls for glide 13
- Panel controls for the filter 13
- Panel controls for the mixer 13
- Filter 14
- Midi accessible contol 14
- Midi accessible control 14
- Mix oscillator levels 14
- Panel controls for glide 14
- Panel controls for the filter 14
- Panel controls for the mixer 14
- Envelopes 15
- External control 15
- Midi accessible control 15
- Panel controls for the envelopes 15
- Envelopes 16
- External control 16
- Midi accessible control 16
- Panel controls for the envelopes 16
- External cv control 17
- Midi accessible control 17
- Modulation mod 17
- Panel control for release 17
- Panel controls for modulation 17
- Release 17
- External cv control 18
- Midi accessible control 18
- Modulation mod 18
- Panel control for release 18
- Panel controls for modulation 18
- Release 18
- External control 19
- Midi accessible control 19
- Output panel 19
- Panel control for volume 19
- Volume vca 19
- External control 20
- Midi accessible control 20
- Output panel 20
- Panel control for volume 20
- Volume vca 20
- Midi operations 21
- Midi operations 22
- A note about control parameters 23
- All sounds off all notes off cc 120 or 123 both of these parameters are midi panic functions that are used to silence hung midi notes controllers or daws may send one or the other command which is why the sirin will respond to either 23
- For all parameters the msb indicates the regular cc number for all parameters the msb indicates the regular cc number and the lsb indicates the high resolution fine control value if you are only sending 7 bit midi cc messages to the sirin use the msb number by itself note that when msb only messages are issued the value range is always 0 127 23
- Function cc value range control parameter 23
- Local control off cc 122 this parameter allows the front panel controls to send midi but disconnects the sirin sound engine from direct control by the panel per the midi spec only values of 0 and 127 work 0 off 127 on if you are conn ected to a daw using usb midi patched through you may need this to avoid feedback artifacts after changing the state of local control on off the sirin remembers the last setting after power down 23
- Midi control change cc messages the tables on the following pages list all midi cc messages for the sirin messages shown with an m indicate parameters which are only accessible via midi bolded values indicate the appropriate range for 7 bit messages msb 23
- Mod modulation oscillators mixer filter 23
- Notes notes sirin sends 7 bit midi cc messages for all parameters it can receive either 7 bit or 14 bit values for the parameters controlled by knobs but only 7 bit values for parameters con trolled by switches 23
- Section 23
- A note about control parameters 24
- All sounds off all notes off cc 120 or 123 both of these parameters are midi panic functions that are used to silence hung midi notes controllers or daws may send one or the other command which is why the sirin will respond to either 24
- For all parameters the msb indicates the regular cc number for all parameters the msb indicates the regular cc number and the lsb indicates the high resolution fine control value if you are only sending 7 bit midi cc messages to the sirin use the msb number by itself note that when msb only messages are issued the value range is always 0 127 24
- Function cc value range control parameter 24
- Local control off cc 122 this parameter allows the front panel controls to send midi but disconnects the sirin sound engine from direct control by the panel per the midi spec only values of 0 and 127 work 0 off 127 on if you are conn ected to a daw using usb midi patched through you may need this to avoid feedback artifacts after changing the state of local control on off the sirin remembers the last setting after power down 24
- Midi control change cc messages the tables on the following pages list all midi cc messages for the sirin messages shown with an m indicate parameters which are only accessible via midi bolded values indicate the appropriate range for 7 bit messages msb 24
- Mod modulation oscillators mixer filter 24
- Notes notes sirin sends 7 bit midi cc messages for all parameters it can receive either 7 bit or 14 bit values for the parameters controlled by knobs but only 7 bit values for parameters con trolled by switches 24
- Section 24
- 16 note 1 16 98 103 25
- 16 note triplet 1 16 t 104 109 25
- 2 note 1 2 43 48 25
- 2 note triplet 1 2 t 55 60 25
- 32 note 1 32 110 115 25
- 32 note triplet 1 32 t 116 121 25
- 4 note 1 4 61 67 25
- 4 note triplet 1 4 t 74 79 25
- 64 note triplet 1 64 t 122 127 25
- 8 note 1 8 80 85 25
- 8 note triplet 1 8 t 92 97 25
- Dotted 1 16 note 1 16 dot 86 91 25
- Dotted 1 2 note 1 2 dot 31 36 25
- Dotted 1 4 note triplet 1 4 dot 49 54 25
- Dotted 1 8 note 1 8 dot 68 73 25
- Envelopes mod wheel response pitch wheel response control see note 1 keybd response volume 25
- Function cc value range control parameter 25
- Midi cc values for the lfo clock divider cc 86 25
- Section 25
- Time value division value 25
- Whole note half note wh 1 2 19 24 25
- Whole note triplet wh t 37 42 25
- Whole note wh 25 30 25
- Whole notes 2 whole 13 18 25
- Whole notes 3 whole 7 12 25
- Whole notes 4 whole 0 6 25
- 16 note 1 16 98 103 26
- 16 note triplet 1 16 t 104 109 26
- 2 note 1 2 43 48 26
- 2 note triplet 1 2 t 55 60 26
- 32 note 1 32 110 115 26
- 32 note triplet 1 32 t 116 121 26
- 4 note 1 4 61 67 26
- 4 note triplet 1 4 t 74 79 26
- 64 note triplet 1 64 t 122 127 26
- 8 note 1 8 80 85 26
- 8 note triplet 1 8 t 92 97 26
- Dotted 1 16 note 1 16 dot 86 91 26
- Dotted 1 2 note 1 2 dot 31 36 26
- Dotted 1 4 note triplet 1 4 dot 49 54 26
- Dotted 1 8 note 1 8 dot 68 73 26
- Envelopes mod wheel response pitch wheel response control see note 1 keybd response volume 26
- Function cc value range control parameter 26
- Midi cc values for the lfo clock divider cc 86 26
- Section 26
- Time value division value 26
- Whole note half note wh 1 2 19 24 26
- Whole note triplet wh t 37 42 26
- Whole note wh 25 30 26
- Whole notes 2 whole 13 18 26
- Whole notes 3 whole 7 12 26
- Whole notes 4 whole 0 6 26
- Appendix a midi implementation chart 27
- Appendix b service and support information 27
- Appendix a midi implementation chart 28
- Appendix b service and support information 28
- Appendix c caring for the sirin 29
- Appendix d specifications 29
- Appendix c caring for the sirin 30
- Appendix d specifications 30
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