24-bit WAVE/MP3 Recorder

A Portable MP3 Recording & Playback Masterpiece

  • USB
  • COSM

A Portable MP3 Recording & Playback Masterpiece

Searching for the highest recording quality in a portable device? EDIROL handpicked the top analog and digital components for the R-1. The unit records and plays back at a crystal-clear, 24-bit audio resolution without compression. Electrolytic capacitors provide stable, reliable power to the analog circuits, eliminating DC interference and supplying low-distortion sound. Audio recorded into the R-1 is stored as stereo files directly onto removable Compact Flash card. Maximum recording time is approximately 137 minutes when using the bundled 64 MB card. Nine format-quality modes are provided, ranging from 64 kbps compression to linear WAV.

  • - High Quality Recording --- 24-Bit Linear PCM or Up to 320 kbps MP3 Encoding
  • - Built-in Integrated High-grade Microphones
  • - Isolated Adaptive Recording Circuit (I.A.R.C.) and Analog Limiter
  • - Up to 2 GB on Compact Flash Card for easy data storage
  • - High Speed File Transfer via USB 2.0 Connection to Computer
  • - Custom DSP Effects for perfecting your Recording and Playback
  • - Battery Operation for Field Recording

High Quality Recording -- 24-bit Wav or MP3 encoding up to 320 kbps

The R-1 can record an playback audio files up to 24-bit/44.1 kHz [Better than CD Quality] and MP3's encoded at up to 320 kbps.

* R-1 is a direct WAVE/MP3 recorder. Internal file conversion is not possible.

Built-in Integrated High-grade Microphones

The R-1 is equipped with two, high-grade omni-directional back electret type microphones built-in for quick and clean capture. These ultra-small, light-weighted microphones offer a flat frequency response and are durable against vibration and shock.

I.A.R.C. (Isolated Adaptive Recording Circuit *) and Analog Limiter

* I.A.R.C. (Isolated Adaptive Recording Circuit): The input circuitry of the R-1 provides a separate power supply between the Analog Limiter and AD converter. This eliminates DC interference and results in an overall better quality recording.
I.A.R.C. is the newly developed dedicated analog circuit optimized for recording on R-1. Electrolytic capacitors provide stable, reliable power to the analog circuits, eliminating DC interference. The R-1 offers an input gain volume control to manually adjust recording levels. An Analog Limiter is also provided to reduce sudden clipping or popping noises in your recordings. The side diagram shows the Limiter characteristics.

USB 2.0 Connection to Computer for Rapid File Transfer

The R-1 can connect to the outside world via USB 2.0 for importing/exporting audio files via computer very quickly. For example, a 908MB 60 minute recording at 44.1kHz/24-bit takes only 3 minutes to transfer, only 1/20 of the time it would take to transfer the same recording from a MiniDisc or tape (cassette/DAT) recorder.

Custom DSP Effects for Optimizing your Recording and Playback

The R-1 contains premium 24-Bit internal effects providing emulation of different microphones with Roland's COSM technology, Noise Reducer, Hum Cut, 10-band EQ, Reverb, Center Cancel and more. It also includes a Metronome, Tuner, half-speed playback, and A-B repeat (set markers to playback just a section of an audio file) for musicians looking for a good practice companion.

Up to 2 GB on CompactFlash Card for Easy Data Storage

The R-1 stores audio directly onto removable CompactFlash cards, up to 2GB in size. The R-1 allows you to choose among nine different compression options for your recording, ranging from 64 kbps MP3 compression to 24-bit linear WAV, hence the R-1 allows you to determine the best compromise between audio quality and storage space. The choice is yours. 64 MB CompactFlash card included.

Battery Operation for Field Recording

The R-1 was designed to appeal to musicians and field recorders, thanks to long battery life and premium built-in microphones. Uses 2 AA (alkaline or NiMH) batteries. Up to 5.5 hours of operation.

Recorder Part

2 (stereo)

Signal Processing

AD/DA conversion
24 bits, 44.1 kHz
Data Type
* Stereo only
Format: MPEG 1, Audio Layer 3 (MP3)
Sampling Rate: 44.1 kHz
Bit Rates: 64/96/128/160/192/256/320 kbps
Format: WAV
Sampling Rate: 44.1 kHz
Bit Depth: 16/24 bits

* Each sampling rate is converted into 44.1 kHz in the unit.
Format: MPEG 1, Audio Layer 3 (MP3)
Sampling Rates: 8/11.025/16/22.05/24/32/44.1/48 kHz
Bit Rates: /16/24/32/40/48/56/64/80/96/112/128/144/ 160/192/224/256/320 kbps or VBR (Variable Bit Rate)
Format: WAV
Sampling Rates: 8/11.025/16/22.05/24/32/44.1/48 kHz
Bit Depth: 8/16/24 bits
Memory Card
CompactFlash™ (supports 32 MB to 2 GB)


Audio Input
Internal Stereo Microphone
External MIC (1/8" Stereo phone type, plug-in powered or dynamic mic)
LINE IN (1/8" Stereo phone type)

* The Internal/External MIC and the LINE IN can't be used at the same time; only the LINE IN is effective.
Audio Output
Phones (Stereo miniature phone type)
Digital Out Connector (Optical miniature phone type)

* Phones and Digital Out use a common jack.
Nominal Input Level (Variable)
-10 dBu (input level dial at the maximum position)
Input Impedance
External MIC: 6.8 k ohms
LINE IN: 100 k ohms
Maximum Output Level (Variable)
9 dBu (volume dial at the maximum position)
Recommended Load Impedance
32 ohms
Frequency Response
20 Hz to 20 kHz
USB Interface
Mini-B type connector (support USB 1.1/2.0 mass storage device class)


Effect and Utility Types (Select one type from among 13 types as below)
01:Easy EQ (11 presets: Flat, Rock, Pop, Dance, HipHop, Techno, Jazz, Blues, Classic, Speech, and Vocal)
02:For Speech
03:Voice Perform
04:Editable EQ (10 Band EQ +-12 dB: 32/64/125/250/500 Hz, 1/2/4/8/16 kHz)
05:Noise Reducer
06:Hum Noise Cut
08:Int-Mic Rec. (Mic Simulator Optimized for Built-in Mic)
09:Ext-Mic Rec. (Mic Simulator for External Mic)
11:Center Cancel


20 characters, 2 lines (backlit LCD)
Power Supply
AC Adaptor (Roland PSB-6U type)
Alkaline dry battery LR6 (AA) type x 2
or Nickel Hydrogen (NiMH) battery HR15/51 (AA) type x 2
Battery life
Playback: approximate 5.5 hours
Recording: approximate 2.5 hours (In case of using Alkaline dry batteries LR6 (AA) type continuously)
Owner's Manual
AC Adaptor (Roland PSB-6U type)
AC Cord
CompactFlash (64 M bytes)
Mini-B type USB cable (1 m)
Carrying Bag
Headphones: Roland RH-200/RH-50

System Requirements

OS: Microsoft(R) Windows(R)Me/XP Home Edition/XP Professional
Computer: Windows compatible PC equipped with a USB 2.0 or 1.1 port
OS: Mac OS 9.2, Mac OS 10.2 or later
Computer: Apple(R) Macintosh(R) series with on-board USB port

Size and Weight

Width (W)
99 mm3-15/16 inches
Depth (D)
134 mm5-5/16 inches
Height (H)
30 mm1-3/16 inches
260 g0 lbs. 10 oz.

Weights includes CF and batteries

0 dBu = 0.775 Vrms

EDIROL R-1 is powered by PortalPlayer, Inc. PortalPlayer and the PortalPlayer logo are trademarks owned by PortalPlayer, Inc. (C) Copyright PortalPlayer, Inc. 1999-2004. All Rights Reserved.

CompactFlash and CF logo are trademarks of SanDisk Corporation and licensed by CompactFlash association.

Roland Corporation is an authorized licensee of the CompactFlash™ and CF logo trademarks.

MPEG Layer-3 audio compression technology is licensed by Fraunhofer IIS and Thomson Multimedia.

Unauthorized duplication, reproduction, hiring, lending, sales, public performance and broadcasting is prohibited and a violation of applicable laws.

All specifications and appearances are subject to change.


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