![]() ![]() You can not only lock files against accidental deletion (although a yes/no confirmation before erasure makes accidents unlikely), but lock the unit in case of loss, so it'll neither play back files nor allow copying of files to a PC unless you enter a four-digit PIN. ![]() Switching from Zoom to Wide (surround recording) mode, meant for capturing the words of everyone at a conference table, made the radio voices noticeably more prominent. I tested the device in a simulated classroom environment, 20 feet away from a podium with a radio chattering off to one side, and it worked: While it wasn't a day-and-night difference, the Zoom mode did reduce the background sound and help us focus on the lecturer's words, especially when playing sound files back on a PC. The sound quality of SLP files was very poor. ![]() Three levels of recording quality dubbed XP (44kHz sampling), LP (22kHz), and SLP (8kHz) with a choice of mono or stereo yields a range of recording capacities from 17 to 287 hours. Audio recording Built-in microphone: 2 omni-directional microphones for stereo recording, 1 directionalmicrophone for distance zoom recording Recording formats: MPEG1 layer 3 (MP3), PCM (WAV) Recording quality: MP3 (8, 32, 64, 96, 128, 192, 256, 320 kbps), PCM (22 kHz/16 bit, 44.1 kHz/16 bit, 48 kHz/16 bit, 96 kHz/24 bit) Audio scenes: Note, Speech recognition, Interview, Lecture, Meeting, Music, Custom Recording time (built-in memory): 2147 h (MP3, 8 kbps), 536 h (MP3, 32 kbps), 268 h (MP3, 64 kbps), 178 h (MP3, 96 kbps), 134 h (MP3, 128 kbps), 89 h (MP3, 192 kbps), 67 h (MP3, 256 kbps), 53 h (MP3, 320 kbps), 24 h (PCM, 22 kHz/16 bit), 12 h (PCM, 44.The RR-US570 is a fairly straightforward MP3 recorder with 1GB of flash memory (a $130 model, the US590 packs 2GB) divided into four folders holding up to 99 files each, plus a music folder that holds up to 999 files. ![]()
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