Yamaha N12 Owners Manual - Page 12

English STEREO BUS AUX BUS STEREO BUS REVERB BUS Recording Basics Monitor mix for musicians, external effects One important mixer function is to send out signals for signal processing via an external effect unit or to be monitored by the musicians. For these purposes, mixers feature AUX bus and Insert I/O. ■ AUX buses for monitor sends and overall effects AUX (Auxiliary) buses are very convenient buses that can be used for various purposes, such as: a) to create a monitor mix that is separate from the main mix and sent to the players for monitoring, and b) to process the signal via an external effect unit and then bring it back into the mix. When you are using the AUX buses, you need to consider whether you want a "pre-fader" signal (a signal taken from a point before the channel fader) or a "postfader" signal (a signal taken from a point after the channel fader) to be sent to the AUX buses. On the n8/n12, a pre-fader signal is sent to the AUX bus. Thus the bus signal is not affected by the channel fader. channel fader PRE ON stereo fader OUT AUX send level OUT • Using AUX buses to create a monitor mix for players For players, it is easier to listen to a well-balanced monitor mix. For example, even if you raise the input channel fader for guitar during the guitar solo, the fader operation does not affect the AUX bus output, which remains independent of the main mix. If a post-fader signal is routed to the AUX buses for monitoring, the fader operation will affect the balance of the monitor mix. This is something that you and the players would probably like to avoid. • Using AUX buses to process the signal via an external effect unit If you are using an AUX bus to send a pre-fader signal to an external effect unit, you can adjust the level of the input channel signal and the amount of effect separately. For example, if you operate the fader for the input channel signal that is sent to the effect unit, the balance between the dry signal (unprocessed) and the wet signal (processed by the effect unit) will change. To maintain the same balance between the dry and wet signals, you must adjust the AUX send level whenever you adjust the channel fader. ■ Built-in digital reverb The n8/n12 features a REVERB bus that is dedicated to the built-in digital reverb. This is almost identical to the AUX bus, and can be used to send signals to the built-in digital reverb. The only difference from the AUX bus is that a postfader signal is routed to the REVERB bus. Therefore, the send level is affected by the channel fader, so the effect level always remains in proportion to the channel signal when you adjust the channel fader. channel fader POST stereo fader OUT REVERB send level digital reverb ■ Insert I/O for processing individual channel signals Insert I/O jacks function in a manner similar to the AUX buses: they provide a send and a return for signal processing via an external effect unit. However, unlike AUX buses that "collect multiple channel signals, then send them together to an effect unit," insert I/O jacks are used to "send an individual channel signal to an external effect unit, then return it to the mixer." A channel signal that is routed to the insert out jack has already been amplified or attenuated to an appropriate level via the gain control. Connect a compressor, limiter, equalizer or other effect unit that can control the overall signal to the insert I/O jacks. You can also connect a reverb or similar effect unit to process only a single channel signal. When you connect an effect unit to the insert I/O jacks, the channel signal will be routed to the external effect unit via the insert out jack. The signal will be processed by the effect unit, then returned to the mixer via the insert in jack. It then resumes its normal path. effect unit INSERT OUT INPUT CHANNEL INSERT IN channel fader 12 Owner's Manual