[ms03 title]

[owner's manual]

3) Features and Functions ^

- guide to features and functions 1

[one] Peak level indicator:
This LED lights up when the input signal goes above a set level (the threshold set by the input level control.)
[two] Input level control:
Use this knob to adjust the audio input signal level. Set the knob so that the peak level indicator lights only at the instant you pick a guitar string or, when using a mike or acoustic instrument pickup, when you play or sing the loudest.
[three] Range selector:
Use this switch to match the frequency range of your audio input signal to that of the synthesizer's VCO CV input range. The LOW position is suited to an audio signal having a frequency range of 70Hz~1.4kHz. The HIGH position is suited to a range of 140Hz~2.8kHz. Note that in the HIGH position, the synthesizer's VCO pitch will be one octave lower than when you use the LOW position.
For example, the highest note on an electric guitar has a pitch around "E" in the second highest octave on an 88-key piano. Since the frequency of this note is 1397Hz (or 1.397kHz), the guitar's frequency range is just covered by the LOW position.
[four] Mode selector:
Response time is an important problem when producing an output voltage proportional to the frequency of the audio input signal. This is especially true when using an electric guitar if the signal processor responds to the initial picking noise instead of the pitch of the string. This mode selector is designed to let you choose the most suitable response time for your playing style and musical aim, so as to avoid annoying misoperation.

1: This position gives you a very fast response time for accurate pitch-to-voltage conversion, as long as you pick precisely and don't accidentally hit other strings.

2: With this slightly slower response time, output voltage will remain stable even with less precise picking and fingering.

3: In this position, the response time is a bit slow, but the trigger signal will continue to be produced as long as there is no break in the audio input from your guitar, mike, etc. Therefore, this mode is very effective if you set the synthesizer's sustain level rather high, and set the attack time rather slow.

The MS-03 is designed to be used with monophonic synthesizers. If the audio input signal contains more than one clear pitch, the MS-03 cannot produce a steady output voltage to control the VCO frequency on your synthesizer. In other words, you have to avoid playing chords on your instrument, or singing harmony into the microphone.
[five] Signal input:
Plug your guitar, mike, etc., into this jack. Thanks to the employment of the auto-pat system, it's easy to adjust input sensitivity to match all inputs, from mic level to line level, just by turning the input level control knob.
[six] Portamento time control:
Use this knob to adjust the amount of time the synthesizer's pitch changes will lag behind the changes in pitch in the audio input signal (from your guitar, mike, etc.)
[seven] Portamento switch input:
Use this jack to connect a foot switch (Korg S-type) so that you can easily turn the portamento effect on and off while playing.

- guide to features and functions 2

[eight] CV Hold switch input:
Use this jack to connect a foot switch (Korg S-type) so that you can hold the synthesizer pitch at any point. While trigger signal operation remains normal, the MS-03 output voltage (which controls the synthesizer VCO) will be maintained at whatever value it has when you turn on this switch.
[nine] CV & Trigger hold switch input:
With a foot switch (Korg S-type) connected to this jack, you can completely hold whatever sound the synthesizer is producing for as long as you want. This means that you can do things like holding the synthesizer at one note and then playing the guitar (in the normal way) on top of the synthesizer sound.
[ten] Cancel switch input:
This switch input jack lets you cancel the synthesizer sound. The Korg J-type foot switch is recommended for this purpose. Hit this switch once to turn off the synthesizer sound; hit it a second time to make the synthesizer sound reappear. If you are playing a melody on a guitar, the note you are picking at the instant you first turn on the foot switch will continue until you begin to pick the next note, from which point the synthesizer sound will be cancelled. The synthesizer sound will begin again with the first note you pick on the guitar after you press the foot switch the second time.
[eleven] Hz/V CV output:
Connect this control voltage output to the VCO CV IN jack on your Korg (MS-10, MS-20, MS-50, etc.) or other Hz/V type synthesizer in order to control the VCO pitch. Both Korg and Yamaha synthesizers employ the Hz/V system in which the VCO frequency is proportional to the control voltage. When using the MS-03 with a Yamaha synthesizer, set the range selector to the HIGH position to compensate for the difference in Yamaha's VCO CV range.
[twelve] Oct/V CV output:
Use this jack for connection to the VCO CV IN input jack on Oct/V type synthesizers (in which the VCO pitch changes by one octave for each one volt change in the control voltage signal.)
[thirteen] [fourteen] Trigger outputs:
Use jack[thirteen] for connection with the EG TRIGGER IN input jack on Korg (MS-10, MS-20, MS-50, etc.) and other synthesizers employing the same type of trigger signal. In a synthesizer, the trigger signal (which in this case comes from the MS-03) controls the beginning and end of a sound by triggering EG (envelope generator) operation. There are two different types of trigger signal system in use by the synthesizer manufacturers. In one type, the voltage or switch changes from "off" (open) to "0V" or "GND" (ground or earth); the other type of trigger signal does the opposite.
If you are not using a Korg synthesizer with the MS-03, and you don't know which jack to use, try both [thirteen] [ms03 ground] and [fourteen] [ms03 ground up] and see what happens. The correct jack is the one that produces a sound on the synthesizer at the same time that the LED trigger indicator (to the left of the two trigger output jacks) lights up.
[fifteen] Envelope output:
This jack produces a control voltage signal proportional to the audio input signal's instantaneous amplitude (the volume contour of the notes you play on a guitar, etc.). By using this envelope follower output instead of the synthesizer's own envelope generator, you can make the synthesizer's volume changes (its envelope) correspond with (or be proportional to) the way the volume rises and falls on the guitar, etc., as you articulate each note. On all Korg MS-series units you can patch this envelope output directly to the VCA control input or VCF FcM input to get "expand" (VCF[bullet]ADSR) and other effects.
[sixteen] Direct output:
This output jack gives you the direct, unprocessed signal from whatever audio input you have plugged into the MS-03. Since there is a low-gain amp between the initial signal and this output, you won't have any problems if you want to connect this jack directly to an amplifier. By doing this you'll be able to have the unprocessed, normal sound of your voice or guitar coming from one amp, while the synthesizer sound comes from another.
[seventeen] Power switch

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