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VN-480

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What are the specifications for this model?

Olympus VN-480 Digital Voice Recorder

Olympus VN-480 Digital Voice Recorder
Product Number 141715
Shipping date: March 2004
Box Contents
VN-480 Digital Voice Recorder
Two AAA Alkaline Batteries
Instruction Manual
Warranty Card

Specifications
Model VN-480
Recording Format ADPCM (WAVE)
Recording Media 64 MB built-in Flash memory
Recording Time HQ mode: 2 hours 57 minutes
SP mode: 4 hours 27 minutes
LP mode: 8 hours 13 minutes
Card Format n/a
Input Level -70 dBv
PC Interface n/a
LCD 23 x 23 mm
LED 2 colors (red = record/transfer, green = playback)
Folder Messages 3 folders, 100 messages per folder, plus S folder
Sampling Frequency HQ mode: 16.0 kHz
SP mode: 10.6 kHz
LP mode: 5.75 kHz
Overall Frequency Response HQ mode: 300 - 7,200 Hz
SP Mode: 300 - 4,700 Hz
LP Mode: 300 - 2,600 Hz
LP Mode Yes
Voice Activation Available, Switchable ON/OFF
Demographic Data Input n/a
Practical Maximum Output 120 mW
Write Protection n/a
Speaker Built-in 28 mm round dynamic speaker
Microphone Built-in condenser microphone (monaural)
Microphone Jack 3.5 mm mini-jack, impedance 2 kohms
Earphone Jack 3.5 mm mini-jack, impedance 8 ohms
Power Supply 2 AAA Alkaline or 2 AAA NiMH batteries (BR-401)
External Power Supply n/a
Battery Life Alkaline: Approx. 25 hours
NiMH: Approx. 19 hours
Size 3.9" x 1.5" x .8" (99 x 39 x 21.5 mm) excluding protrusions
Weight 2.4 oz (68 g) including alkaline batteries
Audio Output Earphone output or speakers

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What are the main features of this model?

The Olympus VN-480 digital voice recorder records in ADPCM (Adaptive Differential Pulse Code Modulation) WAVE audio format. The three recording quality modes provide options for recording high-quality sound files or expanding the memory capacity by using a lower-quality recording mode. The VN-480 also has options for setting an alarm or configuring the recorder to automatically record unattended for a pre-set time period. The microphone and earphone jacks allow the use of audio accessories.

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What is ADPCM?

Adaptive Differential Pulse Code Modulation (ADPCM) compresses files by saving them as WAVE files with a bit depth of four bits rather than the 16 bits typical of other audio formats. It also uses the built-in flash memory more efficiently by comparing a sound wave to a previous sound wave and digitizing the difference.

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How much recording time is available in the VN-480?

The length of the potential recording time available in the VN-480 is governed by the recording quality mode that is selected. An HQ (High Quality) mode recording uses more memory than an LP (Long Play) quality mode recording because the HQ mode makes a more-detailed digital record and uses more memory then the LP mode.

The table below shows the approximate maximum dictation recording times possible in the VN-480 in the different quality modes:

Quality Mode Maximum Dictation Recording Time
HQ mode 2 hours 57 minutes
SP mode 4 hours 27 minutes
LP mode 8 hours 13 minutes

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How is the VN-480 turned off?

The [HOLD] switch is the power ON/OFF switch on the VN-480. It is recommended to set the [HOLD] switch to HOLD when replacing the batteries to preserve the time and date settings.

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How is the recording volume controlled?

The VN-480 always records at 100% volume level to prevent accidentally recording with the volume set too low.

The recorder has two microphone sensitivity levels:

  • LOW is a low sensitvity level used for close-up recording.
  • HIGH is a high sensitvity level used in conference or lecture situations.

Microphone sensitvity is set in the recorder Menu. The function is identified by an icon that looks like a microphone.

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How is the playback volume controlled?

The playback volume is controlled using the VOLUME control dial on the right side of the recorder.

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Can playback speed be controlled?

Pressing the PLAY button during playback changes the playback speed to -20% normal speed. SLOW appears on the LCD screen during slow playback. Pressing PLAY a second time changes the playback speed to +30% normal speed. FAST appears on the LCD screen during fast playback. Pressing the STOP button stops the playback and resets the recorder to normal playback speed.

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What are Index Marks?

Index Marks are digital tags that can be inserted while recording or during playback. They are used to skip forward or backward in recordings to pre-selected points. Up to 10 Index Marks can be added to a single file. They are entered by pressing the [FOLDER/INDEX] button on the recorder.

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How can I format the VN-480?

The VN-480 is formatted using the CLEAR function. Using the CLEAR function erases the time and date settings as well as all of the files, so be certain the files are saved elsewhere before clearing the recorder. The procedure is as follows:

  1. Hold the STOP button and ERASE button simultaneously for three seconds or longer.
  2. Press the - or + button to select YES.
  3. Press the ENTER/INDEX button. The recorder will be formatted.

In some instances, using the CLEAR function will reset the recorder if it is performing erratically. Files deleted using the CLEAR function cannot be retrieved.

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What is VCVA?

Variable Control Voice Actuator (VCVA) is a function that configures the recorder to record automatically only when sound is detected at a pre-set level and to stop when the sound drops below the threshold level. The purpose of the function is to eliminate "dead air" during recordings, thereby conserving memory and shortening file times.

VCVA is enabled in the recorder menu.

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How are files erased from the VN-480?

Individual selected files or the entire contents of a selected folder can be erased from the VN-480.

To erase a selected file from Folder A, B, or C:

  1. Press the MENU/FOLDER button to select Folder A, B, or C.
  2. Press the - or + button to select the file to be erased.
  3. Press the ERASE button.
  4. Press the - or + button to select YES.
  5. Press the ENTER/INDEX button.

To erase the contents of Folder A, B, or C:

  1. Press the MENU/FOLDER button to select Folder A, B, or C.
  2. Press the ERASE button twice.
  3. Press the - or + button to select YES.
  4. Press the ENTER/INDEX button.

To erase a selected file from a date subfolder in Folder S:

  1. Press the MENU/FOLDER button to select Folder S.
  2. Press the - or + button to select the date subfolder.
  3. Press the PLAY button.
  4. Press the - or + button to select the file to be erased.
  5. Press the STOP button.
  6. Press the ERASE button.Press the - or + button to select YES.
  7. Press the ENTER/INDEX button.

To erase the contents of a date subfolder in Folder S:

  1. Press the MENU/FOLDER button to select Folder S.
  2. Press the - or + button to select the date subfolder to be erased.
  3. Press the ERASE button twice.
  4. Press the - or + button to select YES.
  5. Press the ENTER/INDEX button.

To erase the contents of a month subfolder in Folder S:

  1. Press the MENU/FOLDER button to select Folder S.
  2. Press the ERASE button three times.
  3. Press the STOP or PLAY button to select the month subfolder to be erased.
  4. Press the ENTER/INDEX button.
  5. Press the - or + button to select YES.
  6. Press the ENTER/INDEX button.

To erase the contents of Folder S:

  1. Press the MENU/FOLDER button to select Folder S.
  2. Press the ERASE button four times.
  3. Press the - or + button to select YES.
  4. Press the ENTER/INDEX button.

Erased files cannot be retrieved.

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How does the TIMER function work?

The TIMER function enables the recorder to automatically record unattended for a pre-set time period. To program the recorder for timer recording, do the following:

  1. Open the recorder's menu by pressing the MENU/FOLDER button for three seconds.
  2. Using the STOP or PLAY buttons on the 4-way keypad, scroll to TIMER.
  3. SET flashes on the LCD screen. Press the ENTER/INDEX button.
  4. Enter the recording start time by setting the hour with the STOP or PLAY buttons. Press the + button to select the minutes setting, and set the minutes using the STOP or PLAY buttons.
  5. Press the ENTER/INDEX button to set the recording start time.
  6. Enter the recording end time by setting the hour with the STOP or PLAY buttons. Press the + button to select the minutes setting, and set the minutes using the STOP and PLAY buttons.
  7. Press the ENTER/INDEX button to set the recorder end time.

The HOLD switch must be in the power ON position. The recorder will record daily for the pre-set time period until the TIMER function is disabled.

To disable the function, return to the TIMER function in the menu, press the + button to select OFF, and press the ENTER/INDEX button.This operation also deletes the start time and end time settings.

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How does the ALARM function work?

The ALARM function can be set to play back an audio file at a pre-determined time. This means the VN-480 can be used for audio reminders or as a travel alarm. An alarm setting must be attached to a particular file in a particular folder. The recorder does not have to be set to the folder being used--when the alarm time comes, the recorder finds the file.

To set an alarm:

  1. Select or record a message file to be linked to the alarm.
  2. Open the Menu by pressing the MENU/FOLDER button for three seconds.
  3. Using the STOP or PLAY buttons scroll to the ALARM menu icon (looks like a dot with double-parentheses around it).
  4. SET flashes on the LCD screen. Press the ENTER/INDEX button.
  5. Enter the alarm time by setting the hour with the STOP or PLAY buttons. Press the + button to select the minutes setting, and set the minutes using the STOP or PLAY button.
  6. Press the ENTER/INDEX button to set the time.

When the alarm goes off, it will beep for 5 minutes or until any button is pressed to play the recording. The alarm will sound even if the HOLD switch is in the power OFF position. The alarm will sound daily until the ALARM function is set to OFF.

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