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PJP-25UR Conference Microphone Speaker

Version 1.17 (updated: Aug. 25, 2008)

【Important】To All Users of the PJP-25UR Controller

Please note that when upgrading to the PJP-25UR ver. 1.17 firmware, you must also upgrade the PJP-25UR controller to PJP-25UR controller ver. 1.21. The functions added with firmware version 1.17 will not operate with version 1.17 of the PJP-25UR controller or earlier. Also, the shortcut key might not work properly.


Echo Canceller has been improved.

The “Environment” setting has been added. (The “Echo Canceller Effect” setting has been discontinued.)

  • In the "Environment" setting, you can select between "Normal" and "Conference Room".
  • Normal: Select this mode when using in an office or open space.
  • Conference Room: Select this mode when using in a relatively quiet environment. This mode is highly-sensitive and picks up the audio from a larger area.

The “Environment” setting can now be configured by the keys of the PJP-25UR.

  • Pressing MENU/PC and VOLUME – at the same time switches the “Environment” setting to "Normal" and the middle LED blinks for three seconds.
  • Pressing MENU/PC and VOLUME + at the same time switches the environment setting to "Conference Room" and all the three LEDs blink for three seconds.

The microphone sensitivity has been optimized to make the audio clearer.

  • The microphone sensitivity has been lowered in default configuration in order not to pick up the audio more than necessary.
  • If you need the microphone sensitivity which is equivalent to 0dB of Ver. 1.13 or before, drug the slider bar to the following position in “Mic level” of the PJP-25UR Controller.
    • When using in "Normal": One scale (large dot) higher from the center
    • When using in "Conference Room": Near the center

For details, refer to “User’s Manual”.

Version 1.13 (updated: July. 31, 2008)

It is now possible to operate the microphone and speaker mute function from Windows.

Sound quality has been improved when selecting “Stereo” or “Wide” in the speaker mode.

Version 1.12 (updated: Mar. 4, 2008)

Improved sound quality: Echo Canceller

The Echo Canceller function has been improved .

Specification change: Microphone levels changed

Because the microphone gain is high, sound quality is sometimes compromised depending on the settings of the communication application (Web conferencing, etc.). To correct this problem, the microphone gain levels have been changed. As a result, the default pickup range setting may be slightly low. If so, the pickup range can be adjusted by raising the microphone levels using the microphone level adjustment of the PJP-25UR controller.
For details, see p12–13 in “User’s Manual” and the “PJP-25UR Controller” help.

Added function: Microphone & speaker control via USB

It is now possible to adjust or select the PJP-25UR microphone and speaker levels from within the sound settings of the PC. The default setting is ON.
For details, see p12–13 in “User’s Manual” and the “PJP-25UR Controller” help.

Added function: Microphone audio band selection

A microphone audio band selection function has been added.By selecting an appropriate audio band, communication applications (Web conferencing etc.) are enabled with optimal sound quality. The default setting is “Normal” (7 kHz band).
For details, see p12–13 in “User’s Manual” and the “PJP-25UR Controller” help.

Added function: New speaker mode

A “Wide” mode has been added to the modes of sound reproduction from the speakers.
For details, see p12–13 in “User’s Manual” and the “PJP-25UR Controller” help.

Added function: New firmware upgrade method

Once firmware (a bin file) has been downloaded to the PC, it can now be transferred to the PJP-25UR.
For details, see p19 in “User’s Manual”

Version 1.04 (updated: Jan. 17, 2008)

Noise Canceller upgraded to improve overall sound quality.

Upgraded Noise Canceller functions.

Specification changes made to decrease audio output settings.

Audio output strength decreased 12dB.

Version 1.02 (updated: Jan. 17, 2008)

Noise Canceller & Echo Canceller upgraded to improve overall sound quality.

Noise Canceller & Echo Canceller functions upgraded.

Specification changes made to the default settings of the Echo Canceller Mode

The Echo Canceller Mode default has been changed to Middle.


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