Sony PCM-D1 - Manual (Page 35)

Menu items
While the recorder is stopped, all the items in the following chart appear. During recording/
standby for recording/record pausing, only “LIMITER,” “LED,” and “200Hz HPF” appear. During
playback/playback pausing, only “DELETE TRK” and “LED” appear.
Item Options (Default settings are underlined.)
REC MODE 1)
(Sampling frequency/
quantifying bit number)
You can select the sampling frequency and quantifying bit number for
recording.
22.05 kHz 16 bit You can record for a longer time.
44.10 kHz 16 bit The default setting
44.10 kHz 24 bit
48.00 kHz 16 bit
48.00 kHz 24 bit
You can record with higher sound quality.
96.00 kHz 16 bit
96.00 kHz 24 bit
Notes
• Sampling frequency is a value that represents how many times an analog signal is
converted into a digital signal (A/D conversion) per second. The larger the value of
sampling frequency, the better the sound quality, but also the larger the amount of
data. Sound quality of 44.1 kHz is equivalent to a CD, 48 kHz is equivalent to a
DAT, and 96 kHz is equivalent to DVD Audio.
• Quantifying bit number is a value that represents the amount of data it takes for
one second of audio. The larger the value of the bit number, the larger amount of
data it takes and better the sound quality.
LIMITER
(Preventing distortion) The recorder always reserves audio for the digital limiter, which is 20dB
lower than audio processed in the normal circuit. This compensates for
clipping that happens during digital processing if audio is over-input.
ON Digital limiter functions to prevent distortion.
OFF Digital limiter does not function.
Notes
• Limiter circuit functions to keep the signal level below the maximum input level.
When a loud sound is suddenly input, the excess part of the sound is
automatically set within the range of the maximum input level in order to prevent
distortion.
• The limiter circuit of the recorder does not compensate for clipping when audio
over 20dB is input. In this case, sound may distort.
• When the setting is “ON,” if the maximum peak value exceeds 0 dB, the peak
value with the limiter circuit working appears.
1) Your computer must have software that supports 24-bit audio data
to play back, edit, etc., the sound with a quantifying bit number of 24 bits.
Continued on the next page
35
Menu Operations
PCM-D1. US. 2-664-971-11(1)