Edirol R-4 Pro Portable Recorder Owners Manual

21
Introducing the R-4 Pro
When the [DISPLAY] button is pressed twice while the Main screen is showing, the display changes to 
show the recording buffer capacity (BUF: buffer gauge).
The recording buffer is memory that temporarily stores the input sound before it is written to the hard disk. 
The buffer gauge indicates how much of the recording buffer has been used. Normally, the recording buffer 
never reaches capacity because input sound is immediately written to the hard disk. However, if data...

22
Introducing the R-4 Pro
O n th e R-4  Pr o,  th e d at a t ha t you r ecord  a n d play b a ck is  ha n dled as  a project. On the hard disk, each project 
actually consists of a folder with one or more files, as shown below.
If you connect the R-4 Pro to your computer, you’ll be able to see how these folders and files are organized. 
However, if you change, delete, or rename the files within a project, the R-4 Pro may be unable to play back 
that project. Please use caution.
In the system settings,...

23
Introducing the R-4 Pro
Stereo projects
fig.project-S1.eps
Four-channel projects
*  If you want to load these files onto your computer, make sure 
that your waveform editing software supports four-channel 
files.
TypeStructure
STEREOx1If there is only one stereo channel pair, a stereo WAV file will be created with a name 
consisting of the project name and a.wav extension.
STEREOx2If there are two stereo channel pairs, a folder will be created with a name consisting of 
the project name plus an...

24
Getting ready to use the R-4 Pro
921To prevent malfunction and/or damage to speakers or other devices, always turn down the volume and 
turn off the power on all devices before making any connections.
fig.basic.eps
For more about connections, refer to both “Recording” (p. 30) and “Playing back” (p. 37).
926aWhen connection cables with resistors are used, the volume level of equipment connected to the inputs XLR 
input connector 1 – 4 may be low. If this happens, use connection cables that do not...

25
Getting ready to use the R-4 Pro
* Once the connections have been completed, turn on power to your various devices in the order specified. By turning 
on devices in the wrong order, you risk causing malfunction and/or damage to speakers and other devices.
* Reduce the volume before turning on power. Even when the volume is turned down, sound may be produced when 
turning on the power. This is not a defect.
* If you connect the AC adapter when batteries are installed, the power will be supplied from...

26
Getting ready to use the R-4 Pro
■Types of batteries you can use
• AA alkaline batteries (LR6)
• AA nickel metal-hydride (HR15/51)
(The R-4 Pro cannot recharge nickel metal-hydride batteries. You must use a separate charger.)
* You must specify the type of batteries in the R-4 Pro System Settings menu item “5 System Setup” (p. 
75). The R-4 Pro will not operate correctly if the specified battery type that does not match the actual batteries.
1Make sure that the R-4 Pro is turned off, and disconnect...

27
Getting ready to use the R-4 Pro
■Caution when using battery power on the R-4 Pro
• If you operate on battery power for an extended time, the batteries will become hot. Be careful not to 
burn yourself.
• Please use alkaline batteries, which have a longer life.
• Do not mix new batteries with used batteries nor mix batteries of differing types.
• If you will not be using the R-4 Pro for an extended time, we recommend that you remove the batteries 
to prevent leakage or other accidents.
• When using a...

28
Getting ready to use the R-4 Pro
When using the R-4 Pro on battery power, a battery icon is shown in the lower right of the display. As the 
battery runs down, the battery icon will change as follows.
fig.bat-caution.epsWhen the battery reaches Level 0, the message in the figure is 
shown. Replace the batteries as soon as possible.
If you continue using the R-4 Pro when the batteries are low, the 
screen is the figure is shown, and then the power automatically 
turns off shortly thereafter.
■Battery...

29
Getting ready to use the R-4 Pro
Using external power sources
When using an external power supply, be sure to set the final voltage.
The final voltage refers to the voltage when voltage can no longer be supplied because the capacity of the 
external power source is reduced and voltage decreases as electricity is consumed.
If the final voltage is not properly set for the external power source, the remaining power display is not 
shown. See the user's manual for the external power source for the...

30
Recording
The following describes how to record audio from a mic connected to a R-4 Pro XLR input connector.fig.mic-1.eps
● Connections
Connect your mic to a XLR input connector.
Howling could be produced depending on the location of microphones relative to speakers. This can be 
remedied by:
1. Changing the orientation of the microphone(s).
2. Relocating microphone(s) at a greater distance from speakers.
3. Lowering volume levels.
● Phantom power switch
Turn this ON when connecting a phantom-powered...