Panasonic SA-PTX7P, Service Manual

Page: 35 / 213

9.1.3. Recording Modes
With these settings you can adjust the audio quality when recording tracks to the HDD. Recordings made with higher bitrates use
more space, reducing the total available space on the HDD.
Recording mode
Recording mode settings at the time of purchase:
The recording mode for each selector is set to "LPCM" at the time of purchase. The recording mode for each selector can be set
individually
( OI page 34).
If you want to change the recording mode to AAC, please note the following:
Recordings made to this unit are initially recorded in LPCM, and then are converted to AAC. Therefore if you are making
continuous, long recordings, the maximum amount of recordings you can make must fit within the LPCM limits for maximum
possible recording time as described in the chart above. In the event that you are making many recordings, continue recording
after the music data has been converted to AAC format (
OI page 32, How recordings work).
Note
LPCM audio quality does not exceed the audio quality of the original recording.
Recording mode/
bitrate
Possible recording
time
Explanation
Higher
audio
quality
LPCM Approx. 104 hours
The audio signal is digitally recorded without any
compression.
AAC(XP)
128 kbps
Approx. 1,230 hours
The audio is initially recorded as LPCM and converted to
AAC when this unit is in standby mode.
AAC is a compression format which compresses the audio
data into a smaller size. Audio quality and the amount of
tracks that can be recorded will differ depending on the
bitrate.
AAC(SP)
96 kbps
Approx. 1,640 hours
Longer
recording
time
AAC(LP)
64 kbps
Approx. 2,460 hours
35
SA-PTX7P