The Edirol R-44 is designed for professional use
within a very conveniently sized package.
Capture up
to 4 channels of uncompressed audio with selectable
bit depths (16-bit or 24-bit) and sampling frequencies
(44.1kHz/48kHz/88.2kHz/96kHz).
R-44 employs SD
cards or large capacity SDHC
cards as the recording media.
No moving parts enables the
most silent and reliable
operation possible.
A compact, solid state,
four channel field recorder.
Built-in stereo microphones
and monitor speakers.
Although the R-44 is compact, all the necessary
functions are included. Built-in high quality
microphones and speakers make recording and
monitoring without external devices possible.
Built-in limiter, low-cut filter
and studio class effects.
An on-board limiter helps suppress sudden peaks in
sound from an input source. A low-cut filter is
included to help prevent things like wind noise or mic
handling noise. Studio class effects such as 3-Band
EQ, 6-Band GEQ, Enhancer or DeEsser can be used
as tools to greatly improve audio quality. Effects can
be applied while recording or simply for
monitoring/playback.
Bulit-In Effects
| 3-Band EQ | 3-band parametric EQ ; allows precise equalization with high/low shelving and peaking |
| 6-Band Graphic EQ | 6 point frequency band equalization; ideal for recording |
| Noise Gate | Minimizes noise during low audio levels, cuts low frequency noise |
| Enhancer | Cleary defines and enhances sound; good for dialogue |
| Comp & DeEsser | Cuts hissing, smoothens the sound, makes audio level uniform |
| MS Mic Mixing | Generates stereo mix with specified spread from inputs of Mid-Side Microphones |
| * Effects can be applied on both input and output * Effects are not available while sample rate is set to 192kHz |
|
Pre-Record function ensures you never
miss that important moment again.
The Pre-Record function buffers input signals for a
certain amount of time. When the REC button is
pressed, the material from the previous few seconds
(selectable) is included. This also helps reduce sound
bites at the beginning of a recording by not having to
start the recorder too early.
Combo type analog jacks and digital output
enables connection with a variety of devices.
The combo input jacks (4)
supports the connection of both
XLR and 1/4 inch plugs.
XLR inputs are equipped with
phantom power. Eleven steps
of input sensitivity enable the
connection of various devices
with a variety of inputs levels from microphones to musical instruments. High quality
analog circuitry in the preamp ensures superior
recording results.
High-contrast Organic LED display
and operation-oriented user interface.
The high contrast, high
response organic LED
screen, viewable from wide
angles ensures fluid
operation in field recording
situations. The high
response of level meters
makes precise level
adjustments possible. All
the necessary switches and
knobs are located on the
top and front panels. Self-lit
buttons on all the key
controls enable clear-cut
recording operations.
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| Effect setup | Level monitoring | TC setup |
Capture eight channels by linking
two units.
The Control Sync terminal enables synchronized
operation of 2 units. Control the second unit from the
master by simply connecting two with a stereo mini
cable.
The master unit can remotely control REC
standby, REC start and REC stop of the slave unit.
This function
enables
8-channel
recording in a
compact space
and at an
affordable price.
Link to computer via
high speed USB.
The R-44 can be mounted on computers with a
simple USB 2.0 connection. It is seen as an USB storage device on a
computer. You can
copy data back and
forth with a simple drag & drop operation.
Four hours of recording with four
AA batteries.
The R-44 can be operated
with 3 types of power supply,
AC adaptor, external battery
and AA batteries.
Four hours* of operation is
possible with NiMH or
alkaline batteries.
* at 16-bit/44.1kHz stereo. No phantom power and pre-record disabled.
*Click the "Green Area " 
Built-in mics
Stereo microphones. Input sensitivity knob and high
response meter enable precise level adjustment.
Phantom Power Switches
On/Off switch to control the phantom power supply to
XLR input jacks. Independent control of each input.
Built-in speakers
Speakers for stand-alone monitoring.
Hold Switch
Prevents unintentional operations by locking the top and
front panel buttons.
Low-Cut Switch
Rolls off low frequencies within input signals to prevent
noise such as mic handling, breath pops or wind noise.
Limiter Switch
Suppresses sudden audio peaks and compresses signal to a threshold level. Stereo link of channels 1-2 and 3-4 is possible.
Effects Button
Calls up on-board studio class effects. Assign to inputs
and outputs as well as individual channels.
Exit Button
Returns to previous screen or cancels current operation.
Scrub Dial
Enables speedy selection of parameters or changing
values within menus. Moves current position forward or
backward during playback or pause.
Marker/Cursor Buttons
Pressing the MARK button adds markers to the project
enabling quick access to points of playback. The 4
buttons also work as cursor control while a menu is
selected.
Menu Button
Calls up menu screen for REC/PLAY setup or other
system preferences.
A-B Repeat Button
Set A-B points in a project to repeat playback between
loop points.
PREV/NEXT/PLAY Buttons
PREV and NEXT buttons allow selection of the previous
or next file. Hold down these buttons for rewind or fastforward.
PLAY button lights in blue during playback.
ENTER/FINDER Button
Use to set a value or parameter selection. This also calls
up the Finder function allowing file management
functions such as Delete, Copy, Move, etc.
*Click the "Green Area " 
Display
Organic LED provides high contrast and quick response
with benefits of wide angle visibility.
Display Button
Switches current contents to be shown on display.
STOP/PAUSE/REC Buttons
REC button lights in red during recording and blinks in
standby mode. The slanted panel provides smooth and
easy access.
Input Sensitivity & Level Knobs
Dual type knobs adjusts both input sensitivities and levels
for Ch 1-4 independently.
Phone Jack & Level knob
1/4 inch stereo phone jack for headphone connection and
level adjustment knob.
*Click the "Green Area " 
Memory Card Slot
For SD and large capacity SDHC cards.
USB Port
Mini B type port for computer connection. Enables copying files to or from computers.
Control Sync
Link two R-44 units together for
8-channel recording.
Digital Output
Digital coaxial type connector for
output to external digital devices
such as speakers/mixers.
Digital Input
Digital coaxial type connector for
inputting digital signals.
Line Output Terminals
Four RCA jacks for independent monitoring of all
channels.
*Click the "Green Area "
Combo Type Input Terminals
Support both balanced (XLR/TRS type) and unbalanced (standard type)
inputs. Phantom power can be supplied to each XLR jack.
| Recorder Section | ||||||
| Channels |
4 | |||||
| Data Type | Format : WAV/BWF | |||||
| Sampling Bit Rate | 16/24-bit | |||||
| Sampling Frequency | 44.1kHz/48kHz/88.2kHz/96kHz/192kHz (Limited to Stereo x 1 at 192kHz) * 16 or 24-bit sampling rate can be selected with any frequency |
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| Recording Media | SDHC memory card (compatible with 64 MB - 8 GB*) * As of November 2007. |
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| Recording Time using 8 GB SDHC card |
16 bit/44.1kHz | 16 bit/48kHz | 24 bit/48kHz | 24 bit/96kHz | 24 bit/192kHz | |
| Stereo | 755 minutes | 694 minutes | 462 minutes | 231 minutes | 115 minutes | |
| 4 ch | 377 minutes | 347 minutes | 231 minutes | 115 minutes | ||
| * Recording times are approximate. Actual results may vary somewhat. * If more than one recorded file exists, the total recordable time will be less than listed. |
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| Input and Output | ||||||
| Analog Input | Ch 1 - 4 : XLR/TRS Combo type, XLR type (phantom powered), TRS type (balanced/unbalanced), Stereo Built-in Microphones |
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| Analog Output | Ch 1 - 4 : RCA Pin type (line output) Headphone : Stereo Phone type (1/4 inch) |
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| Digital In/Out | RCA Pin type (IEC 60958-3) | |||||
| Input Impedance | XLR: 4k ohms or greater (balanced), TRS: 6k ohms or greater (balanced) | |||||
| Nominal Input Level | 11 steps : -56, -50, -44, -38, -32, -26, -20, -14, -8, -2, +4 (Input Level Knob : Center) | |||||
| Maximum Input | +24 dBu (Input Sens Knob: +4 dBu) | |||||
| Output Impedance | Line Output : 600 ohms | |||||
| Recommended Load Impedance |
Line : 4k ohms or greater Headphone : 16 ohms or greater |
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| Output Level | Line Output : -20 dBu (fixed) Headphone : 40 mW + 40 mW |
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| Total Harmonic Distortion + Noise | Line Output : 0.02 % (Input Sens : +4 dBu) | |||||
| Noise Level | Line Output : -100 dBu (Input Sens : +4 dBu, Input Level : Center) | |||||
| Residual Noise Level | Line Output : -103 dBu (Input Sens : +4 dBu, Input Level : Minimum) | |||||
| Frequency Response | 20Hz - 40kHz(0/-3 dB) | |||||
| Dynamic Range | AD : 100 dB DA : 104 dB |
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| Phantom Power | 48 V + or - 4 V, 8 mA per 1 channel (20 mA or less in all channels) | |||||
| Other Terminals | ||||||
| USB Port | Mini-B Type Connecter USB 1.1 or 2.0 High Speed (Mass Storage Class) |
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| Control Sync Jack | Stereo Mini Type Jack Word clock sync and start/stop remote control of 2 units * Remote control function does not guarantee the exact same REC start time |
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| Others | ||||||
| Display | 128 x 64 dot organic LED | |||||
| Power Supply | AC adaptor (PSB-1U), AA type battery x 4 (Alkaline or NiMH) | |||||
| Current Draw | 1.2 A | |||||
| Dimensions | 157(W) x 183(D) x 61(H) mm (6-3/16(W) x 7-1/4(D) x 2-7/16(H) inches) | |||||
| Weight | 1.3 kg (2 lbs 14 oz) including batteries | |||||
* 0 dBu = 0.775 Vrms |
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| System Requirements | MicrosoftR WindowsR VistaR/XP/2000, Mac OS X 10.2 or later | |||||
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| Block Diagram | Dimensions |
Optional Items
*All specifications and appearances are subject to change without notice.
