[. . . ] Sono 88 User Guide English ProKeys Sono 88 User Guide | 1 Introduction . ProKeys Sono Setup in Mac OS X Using ProKeys Sono with a Computer . . 26 ProKeys Sono 88 User Guide The ProKeys Sono Audio Control Panel (Windows Only) . 43 Appendices - Useful MIDI Data . Appendix A - General MIDI Instruments . [. . . ] IMPORTANT: The Direct Monitor knob enables monitoring of all audio signals that enter any of the ProKeys Sono audio inputs. However, the ProKeys Sono outputs must be selected within your recording software in order to hear sounds created by virtual (computer software-based) MIDI instruments. Be sure "ProKeys Sono 88" or "USB Audio Device" is selected as the audio output device within your recording software, and that you have headphones connected to the headphone outputs on the front of ProKeys Sono or amplified speakers connected to the 1/4" outputs on the back of ProKeys Sono. The Mono Button When the Mono button is pressed, the Microphone input sends its signal to both the left and right outputs, and the Instrument input also sends its signal to both the left and right outputs . This means that you will hear these input signals centered between both speakers (or your headphones) . When this button is not pressed, the Microphone input will be sent to the Left Output and the Instrument input will be sent to the Right Output . This means that the microphone input will be panned hard left (i . e . , heard only on the left speaker or headphone) while your instrument input will be panned hard right when you listen back using Direct Monitor . In its default state, the Mono button only affects how you hear signals from the Microphone and Instrument inputs, but does not affect how these signals are recorded . When recording to a stereo track, signal from the Microphone input will appear as input channel one (referred to as the "left input" in certain applications) whereas the instrument input appears as input channel two (the "right input") . These signals can be recorded together on to a stereo track, but it is recommended that you record the inputs on two separate mono tracks (since this will give you more control over each individual track) . Tip: ProKeys Sono can be configured so that signals from the Microphone and Instrument inputs are recorded exactly as heard when monitoring in Mono. Enable the MONO Input Record function in Edit mode to use this feature. Once this setting has been made, the Mono button will not only affect the way you hear yourself while recording (monitoring), but also how the signal is recorded by your computer. In this scenario, if the Mono button is active and you are recording to a stereo track in your sequencing software, any mono source (such as a Microphone or a connected instrument) will be recorded to both channels of the stereo track (left and right). As a result, both, the microphone and instrument signals will appear centered between both speakers ­ essentially creating a two-channel mono recording. See the "Mono Input Record Key" portion of the "Advanced ProKeys Sono Functions in Edit Mode" chapter for additional information on this. ProKeys Sono 88 User Guide | 27 The ProKeys Sono Audio Control Panel (Windows Only) The M-Audio ProKeys Sono Control Panel gives you access to certain audio hardware parameters and status displays . When the ProKeys Sono drivers are installed, the Control Panel software is also installed onto your system . The ProKeys Sono Control Panel icon ( ) appears in both the system tray (near the clock) and Windows Control Panel . Double-click the icon to open the ProKeys Sono Control Panel: Latency Latency is defined as the time it takes for audio to pass through your computer and appear at the outputs of ProKeys Sono . This parameter also adjusts the amount of latency when using "virtual instrument" software on your computer . Please see your virtual instrument software's documentation to learn more about this . Smaller buffer sizes result in lower latency, but may not function well with slower computer systems . The Latency slider selects the buffer size that ProKeys Sono uses to handle digital audio streaming . [. . . ] MIDI Out mode is set to send MIDI from the keyboard to the computer via USB and to the external MIDI Out jack . The Voice Volume knob is assigned to send MIDI controller 7 (Volume) messages . The Modulation Wheel is assigned to send MIDI controller 1 (Modulation) messages . Bank Change MSB = 0 and Bank Change LSB = 0 messages are sent on MIDI channel 1 . [. . . ]