Starting Up
POCKETRAK CX Reference Manual
7
LCD screen
Hint:
What is Linear PCM (Pulse Code Modulation) recording?
Linear PCM (LPCM) recording is a digital recording method that samples analog audio
signals at a certain frequency and saves them as digital signals without compression.
Music CDs (CD-DA – CD digital Audio) use PCM recording (sampling rate of 44.1kHz, bit
depth of 16-bit samples, bit rate of 1,411kbps, and frequency response from 20 to
20kHz).
PCM recordings are digitally-recorded unprocessed audio, and are supposed to be of the
highest sound quality. “WAVE” format is used to import these PCM recording files into a
computer. The WAVE file extension is “.WAV”. MP3 and WMA format files are created by
compressing the LPCM data.
External recording mode (MIC, LINE)
Timer/Alarm
Auto Divide
Recording level
(with ALC off)
Microphone sensitivity
High Pass Filter
File number/
Total number of files
Repeat playback
Skip playback
Playback speed
Sound EQ
microSD card
Bit rate
(for recording and playing back MP3
files and playing back WMA files)
Frequency
(for PCM recording and
playback)
Battery setting
e: eneloop
A: Alkaline battery
Remaining battery power
Folder name
File format
Information indicators
(Remaining recording
time, elapsed recording
time, track name, file
name, artist name, total
playback time, elapsed
playback time, operation
status, file type, current
time and date, etc.)
VAS (Voice Activated System)