IC RecorderICD-SX733/SX734/SX1000

Adjusting the playback sound by amplifying inaudible sound – the digital voice up function

When you set “V-UP” to “Maximum” or “Medium,” the low-level part of a recorded file is amplified, allowing you to hear even low/small voices more easily.
  1. In the stop or playback mode, select MENU - the tab - “V-UP,” and then press .

  2. Press or to select “Maximum” or “Medium,” and then press .

  3. Press souni_stopSTOP to exit the menu mode.

Descriptions of menu items

You can select one of the menu items available.


Disables the digital voice up function.

(Initial setting)


Adjusts the digital voice up function more effectively.


Adjusts the digital voice up function less finely.


  • To cancel the digital voice up function, set “V-UP” to “OFF” in step 2.