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17-06-2011, 23:25 | #1 |
Senior Member
Iscritto dal: Apr 2008
Messaggi: 649
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Scelta tra due registratori vocali digitali
Vorrei un consiglio sull'acquisto tra un registratore olympus dm-620 e un sony idc-ux512 .
Dal punto di vista della componentistica (tipo di microfono,soglia frequenza di risposta....) la differenza è tanta? Mi serve per registrare lezioni e in futuro conferenze e convegni. Vi posto le caratteristiche Olympus Recording Format PCM (WAV), MP3 and WMA Recording Media Built-in 4GB flash memory and micro SD card slot Recording Time PCM 48kHz 16-bit: 5h25m 44.1kHz 16-bit: 5h55m MP3 320kbps: 26h 256kbps: 32h30m 128kbps: 65h30m 64kbps mono: 131h WMA 128kbps: 64h 64kbps: 128h 32kbps: 257h 8kbps mono: 1007h PC Interface Hi speed USB 2.0 Overall Frequency Response 20Hz-20kHz(center microphone ON) 70Hz-20kHz(center microphone OFF) Practical Maximum Output Headphone: 4.0mW + 4.0mW (at load of 16Ω) Speaker: 400mW (8Ω load) Speaker 20 mm round dynamic speaker (mono) Microphone Jack 3.5mm dia. Mini-jack, impedance 2.2kΩ Earphone Jack 3.5mm dia, impedance 8Ω or more Sony Recording format: 4 Maximum working output: Linear PCM (Pulse Code Modulation) MP3 (MPEG-1 Audio Layer3) WMA (Windows Media Audio) 4 Input level: — 70 dBv 4 Sampling frequency: Linear PCM format 48 kHz 16 bit 44.1 kHz 16 bit 48 kHz 44.1 kHz â 150 mV (according to EN 50332-2) 4 Wide band characteristic headphone output: 75 mV â (according to EN 50332-2) 4 Recording medium: Built-in NAND FLASH memory: 4 GB microSD card: 512 MB to 32 GB 4 Speaker: Built-in ø 20 mm round dynamic speaker MP3 format 320 kbps 44.1 kHz 256 kbps 44.1 kHz 128 kbps 44.1 kHz mono 44.1 kHz 4 MIC jack: ø 3.5 mm mini-jack, impedance 2.2 kΩ 4 EAR jack: ø 3.5 mm mini-jack, impedance 8 Ω or more 4 Input power requirement: WMA format 128 kbps 400 mW (8 Ω speaker) 4 Maximum headphone output: 44.1 kHz 44.1 kHz 32 kbps 22 kHz mono 8 kHz 4 External dimensions: 110.8 mm × 39.8 mm × 15.4 mm (without protrusions) 6 64 kbps Batteries: AAA battery (LR03) or Olympus Ni-MH rechargeable battery External power supply: USB connecting AC adapter(A514) 5 V 4 Weight: 86 g (including batteries) 4 Operating temperature: 0°C - 42°C/ 32°F - 107.6°F |
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