15
Appendix
POCKETRAK C24 Reference Manual
82
Specifications
Supported OS
Windows Vista, XP Professional/Home Edition
Mac OS X 10.4, 10.5
Supported media
microSD/SDHC card
Recording mode and estimated
available recording time (with the
internal 2GB memory)
PCM
24bit
96kHz
Approx. 55min.
88.2kHz
Approx. 1hr.
48kHz
Approx. 1hr.50min.
44.1kHz
Approx. 2hr.
16bit
96kHz
Approx. 1hr.25min.
88.2kHz
Approx. 1hr.30min.
48kHz
Approx. 2hr.50min.
44.1kHz
Approx. 3hr.
MP3
320kbps
Approx. 13hr.30min.
192kbps
Approx. 22hr.30min.
128kbps
Approx. 34hr.
64kbps
Approx. 68hr.
32kbps
Approx. 136hr.
Recording format
MP3, PCM (WAV)
Playback format
MP3 (MPEG1 LAYER3, MPEG2 LAYER3), WMA
PCM (Only files recorded on this unit are supported.)
Frequency response (recording with
an external microphone)
PCM
96kHz/24, 16bit
40Hz–47kHz
88.2kHz/24, 16bit
40Hz–43kHz
48kHz/24, 16bit
40Hz–23kHz
44.1kHz/24, 16bit
40Hz–21.7kHz
MP3
320kbps
40Hz–21kHz
192kbps
40Hz–20kHz
128kbps
40Hz–17kHz
64kbps
40Hz–7.6kHz
32kbps
40Hz–6.7kHz
Frequency response (recording with
the built-in microphone)
100–20,000Hz (PCM recording)
* The high end frequency response varies with the recording mode
that was selected for recording with an external microphone.
The low end response is 100Hz in all MP3 recording modes.
Frequency response (playback)
20–23,000Hz
Sampling frequency
16kHz–96kHz