JVC CA-NXHD10R manual Before You Start Recording, About the digital formats used for recordings

Before You Start Recording

•It should be noted that it may be unlawful to re-record pre-recorded tapes, records, or discs without the consent of the owner of copyright in the sound or video recording, broadcast or cable programme and in any literary, dramatic, musical, or artistic embodied therein.

•Tracks of less than 3 seconds cannot be created (or recorded) in the HDD.

•Each recording is stored as an album in a library.

•The recording level is not affected by the volume. During recording you can adjust the volume you are actually listening to without affecting the recording level.

•While recording, you can hear the Active Hyper Bass Pro and/or the tone control effect through the speakers or headphones. However, the playback sound is recorded without these effects (see page 15).

•While recording, HDD play modes (Album play, Library play, and Random play) including Repeat play are temporarily canceled.

About the digital formats used for recordings

When recording into the HDD, you can select either linear PCM or AAC (Advanced Audio Coding) format.

Linear PCM format is the one used for regular audio CD. Audio signals are recorded without any compression. On the other hand, AAC is a newly developed audio compression technology which can eliminate over 90 percent of the original signal data without losing the brilliance of the original. This unit allows you to select 128 kbps and 96 kbps as a bit rate*1.

Allowable recording time differs according to the digital format used. Assuming that only one format is used for all the recordings, recording time will be as follows:

• Linear PCM: About 15 hours*2

•AAC 128 kbps: About 173 hours*2

•AAC 96 kbps: About 227 hours*2

*1 Bit rate is the average number of bits that one second of audio data will consume. The unit used is kbps (1024 bits/second). To get a better audio quality, choose a higher bit rate. The most popular bit rate for encoding is 128 kbps.

*2 These values are theoretically calculated when there is no data recorded. They may differ depending on the recording condition (see page 82).

How the HDD separates the recorded tracks?

When playing back the recordings in the HDD, you can move among the tracks. But why?

•When recording from CD:

A track number is assigned automatically at the beginning of each track. (The playing time of the track recorded in the HDD may differ from the original playing time of the track on the CD).

•When recording from the external component connected to the LINE IN jacks:

Only single track number is assigned.

This means that the HDD will regard the entire recording as one track. However, if there is a blank of about 3 seconds or more, the HDD will consider it as a blank separating 2 tracks and consequently assign another track number to the latter portion.

To assign a track number manually (except while recording from CD and while recording with Tuner Auto Recording), press SET at the place where you want to assign a track number.

• You cannot assign track numbers manually while

recording from CD or recording with Tuner Auto

About the maximum recording length for one track

You cannot continue recording as a single track if its recording time exceeds the following times:

•	Linear PCM:	About 3 hours.
•	AAC 128 kbps/96 kbps: About 24 hours.

Another track number is automatically assigned to the recorded portion exceeding the maximum length.

About SCMS (Serial Copy Management System)

The HDD built in this unit uses the Serial Copy Management System which allows only first-generation digital copies to be made of premastered software such as regular CDs.

If you try to record from a duplicated CD-R or CD-RW into the HDD, “SCMS CANNOT COPY / ANALOG REC” appears in the main display then this unit automatically selects analog recording.

•If double normal speed recording (PCM x2 REC) or four times normal speed recording (PCM x4 REC) is selected for the recording, the recording mode will be automatically changed to normal speed recording (PCM x1 REC).

Recording (see page 46).

To assign a track number (in other words, separate a track) after recording is over, you can use the DIVIDE

function (see page 64).

1st Generation

GIT			NO
			GIT
DI	AL
			DI	AL
CD	CD-R/RW
ABCDEFG		ABCDEFG
			A
			NALOG
		D	OK
		IGI
			TAL

2nd Generation

HDD

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