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Olympus America Inc. > 
Item#: N82E16873100075

OLYMPUS LS-7 Linear PCM TRESMIC Digital Voice Recorder - Black

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  • Built-in 4GB flash memory and micro SD card slot Recording Media
  • Hi speed USB 2.0 PC Interface
  • 4.4" x 1.5" x 0.6" (112 mm x 39.8 mm x 15.9 mm)

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  • Specifications
  • Warranty & Returns
  • Reviews

Learn more about the Olympus America Inc. LS-7-U1-BLK




Recording Format
Linear PCM / MP3 / WMA
Recording Media
Built-in 4GB flash memory and micro SD card slot
Recording Time
44.1kHz/16bit: 1h45m
88.2kHz 24-bit: 1h55m
48kHz 16-bit: 5h25m
44.1kHz 16-bit: 5h55m
44.1kHz mono: 11h55m

320kbps: 26h
256kbps: 32h30m
128kbps: 65h30m
64kbps mono: 131h

128kbps: 64h
64kbps: 128h
32kbps: 257h
8kbps mono: 1007h
PC Interface
Hi speed USB 2.0
Microphone Jack: 3.5mm dia. Mini-jack, impedance 2.2kohms

Earphone Jack: 3.5mm dia, impedance 8ohms or more
Built-in 20mm round dynamic speaker
2 x AAA Ni-MH batteries
External Power Supply
Alkaline (LR03 or R03) batteries / DC5V AC adapter (optional)


24 bit / 96 kHz linear PCM recording

4GB internal memory and removable micro SD card capability

3 microphones (stereo directional mic and center omni directional mic)

Via USB or optional AC adapter for charging battery

File divide, move and copy

Recording level setting

Voice guidance

Voice activation


Overall Frequency Response:
20Hz-20kHz (center microphone ON)
70Hz-20kHz (center microphone OFF)

Practical Maximum Output
Headphone: 4.0mW + 4.0mW (at load of 16ohms)
Speaker: 400mW (8ohms load)

OS Supported: Microsoft Windows XP/Vista/7 Mac OS X 10.4.1-10.6

Dimensions & Weight

4.4" x 1.5" x 0.6" (112 mm x 39.8 mm x 15.9 mm)
3.17 oz. (90 g), including batteries
Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year
  • Read full details

Customer Reviews of the Olympus America Inc. LS-7-U1-BLK

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  • Daniel B.
  • 6/14/2011 9:16:27 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsWonderful, solid voice recorder

Pros: An excellent, very capable voice recorder. Easy to use.

The recording quality is extraordinary. I have recorded while walking along a street with considerable traffic, the recording quality is so high, the voice transcription software had no problem with it.

Cons: The folder/file manipulation on the device is cumbersome.

For voice dictation, it would be useful to have a function to back up, play, and optionally record over. This would allow discarding mistakes during recording. I really miss this feature from microcassette recorders.

The suggested battery charging/discharging should be handled by the device firmware, not manually.

The basic operation of recording in one mode works very well, but using advanced features is very cumbersome. However, most advanced features aren't needed, so this does not matter as much as it might.

Other Thoughts: I only use the PCM recording formats, the recording time is sufficient, and the recording quality is very high. The recorder is good enough that the voice recognition software can clearly pick out someone talking in the background, so avoid dictating with talking in the background.

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