Edirol R-4Pro User Manual

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System setup
The values in boldface are the default values.
* You cannot make Recording Setup settings during recording or playback.
System Menu
1 Recording Setup
Menu item
Value
Function
Input Select
Analog
This selects the type of input. 
Choose this setting if you want to record analog input. Connect your mic or an-
alog audio device to the XLR input connectors. With this setting, any input from 
the internal mics or the digital input jack is ignored.
Digital
Choose this setting if you want to record digital input. The signal from a digital 
device connected to the digital input connector is recorded. With this setting, 
any input from the internal mics or the XLR input connectors is ignored. 
The sampling frequency is specified by the Rec Freq. setting, and the bit depth 
by the Rec Bit setting.
Dig + Ana
Choose this setting if you want to simultaneously record digital and analog in-
put. The signal from the digital device connected to the digital input connector 
and the signal from the mic or analog audio device connected to the XLR input 
connectors
 are recorded simultaneously. For these settings, the digital input is 
on channels 1 and 2. Use channels 3 and 4 for the analog input. This cannot be 
selected when the Rec Freq is 192 kHz. This setting cannot be selected when the 
Rec Freq is set to 192 kHz.
IntMic
Choose this setting if you want to record via the internal mics. LIMITER and sen-
sitivity are invalid. This setting cannot be selected when the Rec Freq is set to 192 
kHz.
Int + Ana
Choose this setting if you want to simultaneously record from the internal mics 
and analog input. MIC-L is on channel 1, and MIC-R is on channel 2. Use chan-
nels 3 and 4 for the analog input. LIMITER and sensitivity are invalid. This set-
ting cannot be selected when the Rec Freq is set to 192 kHz.
Rec Freq.
44.1 kHz, 
448.0 kHz,
88.2kHz 
96 kHz
192kHz
This sets the sampling frequency for recording. 
Higher sampling frequencies allow higher-quality recording but produce larger 
project files, meaning that there will be less available recording time on the hard 
disk. 
The 44.1 kHz setting is sufficient when recording audio that falls within the nor-
mally audible range. This frequency is also the most suitable to use if you are go-
ing to load the recorded file into your computer and create a music CD from it. 
You can use the higher frequency settings when recording audio that contains a 
significant amount of high-frequency content, from instruments such as cym-
bals, or when you want to capture the brightness and transparency of a natural 
environment.
Rec Bit
16 bit, 
24 bit
This sets the sample size (bit depth) for recording. A larger sample size allows 
the sound to be captured in greater detail but produces a larger project file, 
meaning that there will be less available recording time on the hard disk. 
Use the 16-bit setting for normal recording. This setting allows the broadest 
compatibility when loading the recorded file into your computer for playback. 
Use the 24-bit setting if you want to capture the tonal character and ambience in 
greater detail, such as when recording an instrumental or vocal performance.
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