Roland R-4 Instrukcja Użytkownika Pobierz pdf

Edirol R4 Four Tracks On a Budget

G. John Garrett, CAS

Originally in DV Magazine

The Edirol R4 [$1895msrp, about $1595 street] is a 4 input 4 channel file-based

recorder and editor designed with musicians and project studios in mind, but could be

useful for film production and FX recording. An on-board editing function is a bonus that

makes the unit attractive for reportage and other uses. Roland has a long history of

building interesting prosumer music production tools and the R4 fits nicely into their

product line.

First, let’s look at all the knobs and switches. The R4 records up to 4 tracks on an

internal [40G] hard drive and will take 4 balanced or unbalanced mic or line inputs on its

combination XLR\1/4" TRS jacks. Alternatively you can record or play back two

channels of digital IEC 60958 [AES-3, presumably] audio through the coaxial

connectors. The 4 inputs will take mic or line signals, switched in pairs, and inputs 1 and

2 can be connected to the two onboard mics, most likely for radio or print interviews, or

somewhat low-fi stereo recording. There are no signal routing options per-se; input 1

goes to track 1. You can make one or two stereo recordings, or four discrete recordings

simultaneously though. You can’t use the inboard mics and external sources

simultaneously, nor can you record the digital and analog inputs simultaneously.

Phantom power is available at the four XLR connectors and available current is

8ma/input with a max 25ma for all four inputs. Jay Rose and I put this unit on his bench

and the THD+N tested out just below the .03% spec. Distortion figures indicate this

recorder performs best with an external mixer feeding it -10 to +4; the mic pres are not

wonderful.

The R4 will record all popular sample rates from 44.1-96KHz but you can’t do a 4 track

96KHz recording. Bit depth is 16 or 24 bits, and there is no SMPTE timecode function.

In addition to the internal hard there is a Type 1 Compact Flash slot available for

copying files to/from the machine in FAT16 format. It will not record to or play back from

the CF card. There’s a USB connector near the CF card for connecting to a computer.

Transfer speed is impressive, with my laptop I transferred a 93MB recording in about 15

seconds. Since the R4 looks like another hard drive on the system I was able to open

files directly into Adobe Audition and edit them.

The top panel has the main power switch, phantom and limiter switching. The edit,

effects and system [setup] switches are here too, along with the cursor,

SCRUB/SHUTTLE wheels and enter/exit buttons.

With all the new file-based recorders my first test is to see how far I get without reading

the manual [86 pages of English, plus French, German, Italian and Spanish]. This time I

was quickly able to assign the internal mics, make a recording and play it back. Editing,

not so much. I connected my phantom-powered Schoeps mic and could get a signal

through the preamps on Ch1 and 2 but not 3-4. Not bad, considering I hadn’t changed

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Edirol R4 Four Tracks On a BudgetG. John Garrett, CASOriginally in DV MagazineThe Edirol R4 [$1895msrp, about $1595 street] is a 4 input 4 channel fil

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the factory record setup. You have to press pause and then record to just monitor the input, which I find annoying, but I guess it keeps some people f

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files, they’re all put in one folder called a project [<filename.pjt>]. If it’s a mono file or a polyphonic [stereo or 4CHX1] recording, they ca

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the unit, on connectors, etc, is “absolutely harmless.” Edirol may simply have a lot of lawyers vetting their documentation, but my feeling is that if

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