FR-2Field Memory Recorder (Chapter 5: Recording/playback)

Limiter

By using the limiter, the signal level is prevented from exceeding a certain level. In result, the signal level fluctuation is suppressed. Therefore, the limiter is useful when recording a sound whose level is unknown. You can activate the limiter for both L and R channels by setting the [LIMITER] switch to "ON".

The FR-2 limiter uses the VCA (Voltage Controlled Amplifier) circuit. By default, the threshold is -2 dB under the 24-bit full-scale level (all bits: ON) and the com- pression ratio is 1:5. The limiter attack time is fixed to approximately 20 ms, while the release time is fixed to approximately 150 ms.

F (kHz)

48

88.2

96

PRE REC

 

 

176.4

44.1

 

ON

OFF

22.05

 

192

 

 

 

 

 

LIMITER

 

 

 

ON

OFF

REWIND F.FWD

TRIM

-26 +4

-30 -60

-26 +4

-30 -60

ON

OFF

ON

OFF

HPF

(100Hz)

LR

PLAYSTOP

[LIMITER] switch

Selecting the sampling frequency/quantization bit length

You can select the desired sampling frequency ("FS " for short) and quantization bit length ("Bit" for short) for recording by using the [FS (kHz)] and [QUANTIZA- TION] switches on the top panel.

You can select the FS from among 22.05 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz,

176.4kHz and 192 kHz, while you can select the Bit between 16 and 24 bit. The current FS and Bit settings are shown on the Home screen. See the available com- bination of FS and Bit settings in the table below.

While receiving a digital signal, the FR-2 automatically detects the FS and Bit from the receiving digital signal, which takes priority over the [FS (kHz)] and [QUANTI- ZATION] switch settings.

 

QUANTIZATION

TRACK MODE

L

 

 

R

 

 

LINE

MIC

LINE

 

[QUANTIZATION] switch

 

16BIT

 

24BIT

MONO

ST

MIC

 

 

 

 

 

 

 

LINE

 

 

 

 

 

 

 

 

 

 

/MIC

 

 

 

 

FS(kHz)

88.2

 

 

 

 

 

 

 

 

 

48

96

PRE REC

 

TRIM

 

 

 

 

 

 

176.4

 

 

 

 

 

44.1

 

ON

OFF

 

 

 

 

[FS (kHz)] switch

 

22.05

 

192

 

 

 

 

 

 

 

 

 

 

LIMITER

-26 +4

-30 -60

-26 +4

-30 -60

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ON

OFF

ON

OFF

ON

OFF

 

 

 

 

 

 

 

 

HPF

 

 

 

 

 

 

 

 

 

 

(100Hz)

 

 

 

FS (kHz)

BIT

 

 

 

 

 

 

 

16bit

 

 

24bit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

You can see the current

 

 

 

 

 

 

 

 

 

 

22.05

Yes

 

 

 

 

 

 

 

 

FS and bit length.

44.1

Yes

 

 

Yes

 

 

 

 

 

 

48.0

Yes

 

 

Yes

 

 

 

 

 

 

88.2

 

 

 

Yes

 

 

<Note>: During recording (or input monitor), the FS

96

 

 

 

Yes

 

 

 

 

 

 

 

and Bit follow the current switch settings.

176.4

 

 

 

Yes

 

 

 

 

 

 

 

While stopped (or during playback), the FS and Bit

192

 

 

 

Yes

 

 

 

 

 

 

 

recorded on the current file are shown.

<Note>: During recording, you cannot change FS and Bit setting.

If you change the [FS] select switch setting during recording, the switch setting becomes effective when recording stops.

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Fostex FR-2 owner manual Limiter, Selecting the sampling frequency/quantization bit length

FR-2 specifications

The Fostex FR-2 is a highly regarded portable field recorder designed for professional audio engineers, musicians, filmmakers, and sound recordists. Known for its robust build quality, versatile features, and high-quality sound capture, the FR-2 has earned a solid reputation in various recording scenarios.

One of the standout features of the Fostex FR-2 is its ability to record in multiple formats, including Broadcast WAV and MP3, offering flexibility to meet different production standards. It supports 24-bit/192 kHz recording, providing exceptional audio quality that is particularly appreciated in high-fidelity applications. The dual-channel recording capability allows users to capture stereo sound with clarity and precision, making it perfect for capturing live performances, interviews, and ambient sounds.

The FR-2 is equipped with two built-in phantom-powered XLR microphone inputs, which enable the connection of professional-grade microphones without the need for external power sources. This greatly enhances the recorder's utility in field settings where mobility and equipment management are crucial. Furthermore, the unit features a high-performance preamp that ensures low noise levels and superb dynamic range, contributing to the overall sound quality.

An intuitive interface with a large, backlit LCD screen makes navigating the device easy, even in low-light conditions. Users can quickly access settings, track information, and levels, facilitating a smooth recording experience. The FR-2 also offers multiple recording modes, including the ability to create backup tracks, which enhances reliability during critical sessions.

On the connectivity front, the Fostex FR-2 includes Audio Output and Input options, USB support for data transfer, and a headphone output for monitoring. It’s powered by either an internal rechargeable battery or external AC power, providing flexibility for various recording environments.

The rugged design of the FR-2 ensures durability, essential for fieldwork in challenging conditions. Its compact size maximizes portability while maintaining a solid feel, making it a reliable companion for professionals on the go.

In conclusion, the Fostex FR-2 is a versatile and feature-rich field recorder that combines portability with professional audio quality. Its advanced technologies, user-friendly interface, and robust design make it an excellent choice for anyone looking to capture high-quality sound in the field. Whether for music, film, or immersive soundscapes, the FR-2 stands out as a leading tool in the realm of portable audio recording.