This recorder is the smallest dedicated high quality digital recorder I’ve seen 
though not the smallest audio recorder I’ve ever handled, that honour goes to 
the old and faithful - and still very much alive - Sony MZR-900.
The Olympus LS-P4 resembles a rather large USB stick and perhaps one could call 
the LS-P4 a USB stick since the USB connector for the recorder slides in and 
out of the bottom at the touch of a switch.
The USB connector allows the recorder to connect to an AC adapter for charging 
or a computer for the transfer of audio files.
The LS-P4 recorder is the first digital recorder I’ve heard of that records in 
the Loessless FLAC format as well as MP3 and PCM Wave formats.
Sample and bit rates can be set for PCM and FLAC formats up to 96 and 24 bit 
respectively and 320K in MP3 with recording mono modes being provided which are 
particularly useful if you’re just recording your own voice as a lot of memory 
space can be saved.
The LS-P4 has both internal memory and facilities for a SD memory card which is 
inserted into a slot found in the battery compartment. I notice that the 
recorder takes a while to boot when a memory card is inserted though its quick 
off the mark when booting without a memory card.
Power is supplied to the recorder by a triple A battery and you can choose to 
use either an Alkaline or Rechargeable battery, the recorder comes supplied 
with 1 triple A rechargeable battery which the recorder chan charge via the USB 
When the recorder is first powered on you’re asked to select the battery type, 
to set the date and time used for time/date stamping of recordings and Voice 
guidance on/off.
I particularly like the control key arrangement of this recorder.
The traditional Olympus square of up, down, left, right and enter has been 
replaced by a more obvious round control which looks like a 4 pointed start - 
points indicating the 4 directions of the controls travel -.
I didn’t receive a carry case or windscreen with my LS-P4 though a good 
windscreen is easily purchased and I’ve ordered a Gutman windscreen though I’m 
still looking around for a protective carry case.
Connections for external devices can be found on the right hand side of the 
recorder for an external microphone and headphones.
Some previous models of Olympus recorders incorporated a setting in the menu 
system to turn recording monitoring on and off. Now the monitoring function is 
enabled if headphones are connected and the recorder is in recording mode.
I’ve made several recordings using the “Auto” mode for recording level and 
microphone sensitivity. The recorder has a very good level adjustment range so 
everything from the quietest to the loudest sound can be capture with this 
If you know the sort of environment you’ll be using the recorder in then you 
may decide to use or experiment with one of the preset Scene settings which are 
available through the menu system or you can hold down the menu key to bring up 
the list of pre-defined scenes to select from.
This model of recorder offers Bluetooth connectivity so you can playback 
through a set of bluetooth headphones or a bluetooth speaker which I’ve found 
very convenient. Furthermore this function makes perfect sense given you can 
transfer music to the LS-P4 and use the recorder as a music player.
Bluetooth is also used for the Audio Control App available for both Android and 
IOS however I’ve not had any success with this App as yet.

Those of a positive and enquiring frame of mind will leave the rest of the 
halfwits in this world behind.

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