IC RecorderICD-SX733/SX734/SX1000

Recording a few seconds in advance – the pre-recording function

The pre-recording function allows you to record sound sources for approximately 5 seconds prior to the point when you press souni_recREC/PAUSE. This is useful for recording during interviews or when making an open-air recording so that you will not miss an opportunity to start recording.

A: Sounds for 5 seconds are buffered in the memory.

B: Press souni_recREC/PAUSE to enter the recording standby mode.

C: Press souni_recREC/PAUSE.

D: Recording starts.

  1. In the stop mode, select MENU - the tab - “PRE REC,” and then press .

    The menu items will be different depending on the model you are using.

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

    PRE REC” is set to “OFF” when you purchase the IC recorder.

  3. Press souni_stopSTOP to exit the menu mode.
  4. Select a folder.
  5. Press and hold souni_recREC/PAUSE.

    The IC recorder enters the recording standby mode.

    Pre-recording starts and sounds for a maximum of the last 5 seconds are buffered in the memory. ( shows how long the sound is buffered in the memory.)

  6. To start recording, press souni_recREC/PAUSE.

    The standby for recording mode is released, and recording continues from the sound buffered in step 5.

  7. To stop recording, press souni_stopSTOP.


  • If you start recording with pre-recording function using the built-in microphones, a click noise may be recorded when you press souni_recREC/PAUSE. To record with pre-recording function, we recommend using an external microphone.
  • When the remaining recordable time is less than 10 seconds, the pre-recording function is disabled. Before using the pre-recording function, erase unwanted files.
  • When 60 minutes have passed after the IC recorder entered the standby mode in step 5, the standby mode will be canceled and recording stops.
  • If you stop recording before step 6, sounds buffered in the memory will not be saved.


  • To cancel the pre-recording function, set "PRE REC" to “OFF” in step 2.