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System and Audio| system | Minidisc digital audio system |
|---|---|
| laser | Semiconductor laser |
| recording method | Field modulation overwrite method |
| audio compression | ATRAC (Adaptive TRansform Acoustic Coding) |
| playing rotation | Approx. 400 rpm ~ 900 rpm (CLV) |
| D/A conversion | 1 Bit |
| oversampling | 128 fs (5644.8 kHz) |
| A/D conversion method | Sigma-delta method |
| sampling frequency | 44.1 kHz |
Digital Audio Performance| frequency response (playback mode) | 8 Hz ~ 20 kHz, ± 1 dB |
|---|---|
| signal to noise ratio (playback mode) | More than 92 dB |
| dynamic range (playback mode) | More than 90 dB |
| total harmonic distortion (1 kHz, playback mode) | Less than 0.007 % |
| channel separation (1 kHz, playback mode) | More than 85 dB |
| wow & flutter | Less than unmeasurable limit |
Inputs and Outputs| analog input sensitivity / input impedance | 300 mV / 70 kΩ |
|---|---|
| analog output level / load impedance | 1.2 V / 3.2 kΩ |
| digital input, optical (wave length 660 nm) | - 15 dBm ~ - 21 dBm |
General Specifications| power consumption | 14 W |
|---|---|
| dimensions (width) | 200 mm (7 - 7 / 8") |
| dimensions (height) | 77 mm (3 - 1 / 16") |
| dimensions (depth) | 247 mm (9 - 3 / 4") |
| weight (net) | 2.1 kg (4.6 lb) |
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