Scoopman - Digital Micro Recorder NT-1

Sony Corporation; Tokyo

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  • Year
  • 1992–1994
  • Category
  • Sound/Video Recorder and/or Player
  • Radiomuseum.org ID
  • 331293

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • Special Tape or Cassette-Format
  • Power type and voltage
  • Batteries / addl. power jack / AA: 1 x 1.5 & CR-1220: 1 x 3 / 1.5 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: Scoopman - Digital Micro Recorder NT-1 - Sony Corporation; Tokyo
  • Shape
  • Very small Portable or Pocket-Set (Handheld) < 8 inch.
  • Dimensions (WHD)
  • 112.9 x 23.1 x 55.2 mm / 4.4 x 0.9 x 2.2 inch
  • Notes

  • Sony Scoopman NT-1 is the first digital stereo microcassette voice recorder.

    The recording and playback sytem is similar to that of video tape recorders, using helical scanning. The head does not precisely follow the tracks but performs more than one pass per track, storing data in memory and reconstructing the audio information after several passes.

    The Scoopman NT-1 uses special "stamp-sized" micro cassettes (NT-C) with 60, 90 and 120 min. recording time. In 1994 they were the world’s smallest tapes for digital recording, affording them an entry in the "Guinness book 2".

    Audio is recorded with a quality close to that of the CD: 32 kHz sampling, 12 bit non-linear quantization, corresponding to a 17 bit linear quantization. A digital AGC adjusts the recording level automatically or manually.

    Input for external microphone, output for headphones.
    Line-In and Line-Out are available using the provided NTU-2 adapter.

    NT-1 has a clock with auto calendar function up to the year 2099. Time stamps are recorded on tracks.

    Specifications:

    Format: NT format
    Tape: digital micro tape (NTC cassette tape), metal evaporated tape
    Recording system: helical scan 2 heads, digital recording
    Recording head: 3 heads
    Recording time: 2x 30, 2x 45, 2x 60 minutes
    Tape speed: approx. 6.35 mm/second
    Drum rotation: 3000 rpm
    Error correction: cross-interleaving code
    Track pitch: approx. 9.8 µm
    Sampling frequency: 32 kHz
    Modulation system: LDM-2
    Number of channels: 2-channel, stereo
    Quantization: 12-bit non-linear (equivalent to 17 bits)
    Frequency response: 10 Hz - 14'500 Hz (+1, -3dB)
    Signal-to-noise ratio: > 80 dB (1 kHz, IHF-A, 20 kHz LPF, Line In)
    Dynamic range: > 80 dB (1 kHz, IHF-A, 20 kHz LPF, Line In)
    Total harmonic distortion: < 0.08%
    Wow and flutter: below measurable limit (< 0.001%) W.PEAK
    Tape Transport Mechanism Type: MN-1-66
    Maximum recording time: 120 minutes (2x 60 min, double side)

    Mic Input:
    Jack type: stereo mini-jack
    Rated input level: 1.38 mV
    Minimum input level: 0.55 mV

    Line In:
    Jack type: stereo mini-jack
    Rated input level: 160 mV
    Minimum input level: 64 mV

    Lithium battery life CR-1220 cell: approx. 1 year
    Power consumption: approx. 300 mW

  • Net weight (2.2 lb = 1 kg)
  • 0.147 kg / 0 lb 5.2 oz (0.324 lb)
  • Mentioned in
  • -- Original prospect or advert (Sony General Catalogue 1994)
  • Literature/Schematics (1)
  • Audio (D), Juli 1992, p.6
  • Author
  • Model page created by Moisés Piedade. See "Data change" for further contributors.

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The model Scoopman - Digital Micro Recorder is part of the collections of the following members.

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