PCM-D1 (PCMD1)Discontinued

Digital Linear PCM Recorder

Overview

The PCM-D1 portable audio recorder is ideal for capturing live musical and theatrical performances, or for journalists recording in the field. Features include 96 kHz-24 bit recording capability, 4GB internal Flash Memory, removable Memory Stick Pro High-Speed storage (optional) and a built-in USB port compatible with Macintosh® and Windows®/PC operating systems. The PCM-D1 is lightweight, free of all drive mechanisms, equipped with highly sensitive electret condenser microphones, and designed with circuits that process stereo sound with virtually no extraneous noise. The body of this portable recorder is made of pressed titanium that's ten times harder than alumite-treated aluminium.
Portable and rugged 96 kHz - 24 bit recorder
The PCM-D1 provides high quality recording in a rugged go anywhere package.
Ideal for creating superior high-quality stereo recordings
The compact size of the PCM-D1 makes it hugely versatile and belies its recording power.
Offers solid-state storage - free of drive mechanisms
The PCM-D1 has no drive mechanism so provides the reliability required when capturing that critical recording.
High quality built-in X-Y configuration electret condenser microphones.
The PCM-D1's electret condenser microphones have extraordinarily high sensitivity and low noise characteristics.
USB 2.0 mass storage device - easily connects with both PC or Mac
Connection to a PC or Mac could not be easier and provides for fast file transfer.

Features

Built-in Electret Condenser Microphones
The PCM-D1's electret condenser microphones have extraordinarily high sensitivity and low noise characteristics. All the microphone casing parts fit together nearly seamlessly and are adjusted with 100-micron level precision. With a frequency response of nearly 30 kHz, the microphones are positioned using an X-Y pattern and then angled toward each other with the left and right diaphragms close together, covering a wide sound range with reduced phase shifts. The result is rich audio with a natural sounding stereo image, good depth, and perspective.
Superb Audio Signal Path
The microphone amplifier provided for each channel is the Analog Devices, Inc. AD797, which boasts ultra-low noise and distortion. A variable gain circuit is adopted for amplitude control, which enhances the actual signal-to-noise ratio. The line amplifier provided for each channel is the Analog Devices AD8672. Analog and digital circuits are mounted on separate circuit boards and also separately powered to help prevent interference between circuit blocks. The analog circuit achieves superb linearity so that the recorded sound is output faithfully.
Outstanding Construction Quality
The circuitry of the PCM-D1 recorder is protected by a body made of 1 mm thick, pure titanium and covered with nitrate titanium, scratch resistant coating - resulting in a finished titanium surface approximately ten times as hard as that of alumite treated aluminium. In addition, a distinctive arch-shaped polished stainless steel frame is provided to protect the microphones from impact damage. This rugged exterior protects the PCM-D1's circuits and microphones and enhances the high sonic quality of the recorder.
Simple Uploading to Computer
The PCM-D1 recorder conforms to the USB 2.0 Mass Storage Device standard. Because the recorder's native recording file format is .WAV, recordings can be rapidly uploaded to a computer and used in conjunction with most common audioproduction software.
High Quality Signal Processing
The PCM-D1 recorder offers comprehensive signal processing features for location recording including a unique limiter function, a 200 Hz high pass filter and SBM (Super Bit Mapping) noise shaping. With the High Pass Filter enabled, audio below 200 Hz is filtered out and not recorded. This function can be used to reduce noise caused by external sources such as wind, the flow of air-conditioning equipment, etc. With the SBM function enabled (optionally used for 16-bit recording modes), Super Bit Mapping significantly increases the dynamic range acoustically by reducing noise that is particularly easy to hear within the human audible band. To improve the audio quality when converting 20-bit data into 16-bit, the top bits of information within the lower data (usually discarded when recording in 16-bit mode) are integrated into the 16-bit data track by shifting audible noise up into an inaudible higher frequency range.
Digital Limiter
The digital limiter uses an independent audio buffer that contains audio 20dB lower then the audio processed in the normal recording signal path. With the PCM-D1 limiter enabled, when a loud sound suddenly occurs during recording, the over level part of the sound is automatically set within the range of the maximum input level (from the alternative -20dB buffer) in order to help prevent distortion. While this limiter function won't compensate for clipping of audio that is suddenly in excess of 20 dB, the sonic purity of the recording is fully maintained without the need to apply conventional limiter signal processing techniques.
High Pass Filter
With the High Pass Filter enabled, audio below 200 Hz is filtered out and not recorded. This function can be used to reduce noise caused by external sources such as wind, the flow of air-conditioning equipment, etc
Super Bit Mapping
Super Bit Mapping significantly increases the dynamic range acoustically by reducing noise that is particularly easy to hear within the human audible band. To improve the audio quality when converting 20-bit data into 16-bit, the top bits of information within the lower data (usually discarded when recording in 16-bit mode) are integrated into the 16-bit data track by shifting audible noise up into an inaudible higher frequency range.

Specifications

Generic Specifications
Built in Microphones
Electret condenser microphones mounted in X-Y configuration. High sensitivity (-32.0 dB /Pa 1 kHz); Maximum input level 130 dB SPL; Self noise level 20 dBSPL(A)
Recording Media
Built-in flash memory 4 GB, Memory Stick PRO (High Speed) media (Not Supplied), Stereo Recording
Sampling Rates
22.05 kHz, 44.1 kHz, 48 kHz and 96 kHz
Quantization
16-bit linear, 24-bit linear
Frequency Response (Line Input to Line Output)
For Fs = 22.05 kHz: Frequency Response = 20 Hz to 10 kHz; For Fs = 44.1 kHz: Frequency Response = 20 Hz to 20 kHz; For Fs = 48 kHz: Frequency Response = 20 Hz to 22 kHz; For Fs = 96 kHz: Frequency Response = 20 to 44 kHz
Signal-to-Noise Ratio (Line Input to Line Output)
96 dB or greater (1 kHz IHF-A) when set to 24-bit
Total Harmonic Distortion (Line Input to Line Output)
0.008% or below (1 kHz, 22 kHz LPF)
Wow and Flutter
Below measurable limit (less than +/-0.001% W.Peak)
Mic Input (Stereo Mini Jack)
Input impedance: 22 k ohm, Rated input level: 2.5 mV; Minimum input level: 0.7 mV
Headphone Output (Stereo Mini Jack
Rated output level: 400 mV; Maximum output level: 30 mW + 30 mW or more; Load impedance: 16 ohms
Line Input (Stereo Mini Jack)
Input impedance: 47 K ohms; Rated input level: 2.0V; Minimum input level: 570 mV
Line Out/Optical Digital Output
For Line Output Use = Output impedance: 220 ohms;(Combination Stereo Mini and Optical Output Jack) Rated output level: 1.8V;Load impedance: 22 k ohm. For Optical Digital Output Use = Output level: -21dBm to -15 dBm; Emission wavelength: 630 nm to 690 nm
DC Input Jack
6 Volts
USB Connection
Hi-speed USB, Mass Storage Class;System requirements: Macintosh® OS Version 10.2.8 or later;Windows®/PC OS Windows XP Media Center Edition 2005 and 2004,Windows XP Professional, Windows XP Home Edition, Windows 2000Professional (SP3 or later)
Memory Stick Slot
Memory Stick PRO (High Speed) media;NOTE: Standard Memory Stick media not supported
Power Requirements
DC IN 6V (AC 220-240V, 50Hz); Four AA size nickel metal hydride rechargeable batteries NH-AA (supplied); or Four AA size alkaline batteries (not supplied)
Power Consumption
2.1W
Dimensions
2 7/8" x 7 5/8" x 1 5/16" (w x h x d) not including projecting parts and controls
Weight
18.52 oz (including batteries)
Approx battery life
  • Nickel metal hydride rechargeable batteries @ 96KHz - 24bit = 4 Hours
  • Nickel metal hydride rechargeable batteries @ 44.1KHz - 16bit = 5 Hours
  • AA size alkaline batteries @ 96KHz - 24bit = 2 Hours
  • AA size alkaline batteries @ 44.1KHz - 16bit = 2 Hours
Supplied Accessories
Case
Power Supply
Instructions
Windshield
Rechargeable Batteries