User manual

Encoding Video Files

Nero Recode

The check box in front of a subtitle allows you to deselect that subti-

tle for the selected video item. This frees space to improve the quali-

ty of the video.

Only available if there are subtitles available.

Triangle button

Opens the audio codec area for the selected audio track. These

settings affect the encoding and are optimized for a specific output

format. However, you can change those profile settings to meet ad-

vanced needs.

For the single audio tracks, the audio codec area is available. You can open it via the trian-

gle button on the right side of an audio track. The following options are in general available,

depending on the chosen profile:

Codec

Selects the audio codec used for the output audio format.

AC3 and DTS are only available for pass-through!

Bit rate mode

Defines what kind of bit rate the audio codec is using.

Constant bit rate (CBR): Specifies a constant bit rate, i.e., the data

flow per unit of time and thus the quantity of the saved data is the

same over the entire audio file.

Variable bit rate (VBR): Specifies a variable bit rate, i.e., the data

flow per unit of time and thus the quantity of the saved data adapts

to the dynamics of the audio file. The bit rate, for example, can be

lowered at quieter points in the track.

Average bit rate (ABR): Specifies an average bit rate, i.e., the data

flow per unit of time and thus the quantity of the saved data adapts

to the dynamics of the audio file but the average bit rate tends to the

defined value. In principle is it a variable bit rate with a limited bit

band width and thus combining the advantages of the variable and

the constant bit rate.

Bit rate

Specifies the bit rate

, i.e., the data flow per unit of time and thus the

quantity of the saved data.

If the bit rate is low, less data is transferred. The file is then small,

but output quality is lower. If the bit rate is high, more data is trans-

ferred. The file size is then large, but the output quality is high. A

value of 128 is near CD quality.

The values available are determined by the audio format you have

selected.

Quality

Defines the quality level if VBR is used for bit rate mode. You can

set the variable bit rate between 0 and 100. 0 means the lowest,

100 the highest quality.