User manual

Nero Recode Manual
30
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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.
Quality
Defines the quality level if VBR is used for bit rate mode. You can set the
variable bit rate between 0 and 1. 0 means the lowest, 1 the highest quality.
Compression
Defines the compression rate for lossless codecs.
Sampling
rate
Selects the scan rate. The scan rate is the frequency that a signal is scanned
per time interval. If you choose Automatic, Nero Recode sets the sampling
rate as close as possible to the original value.
The values available are determined by the audio format you have selected.
Audio
channels
Defines the audio channels of the output. You can select a down mixing of
the audio channels, but no up mixing. If you choose Automatic, Nero
Recode sets the channel as close as possible to the original setting.
The values available are determined by the audio format you have selected.
Bit per
sample
Specifies the scan accuracy and thus determines the quality of the individual
scanner. The higher the bit sign, the more accurate.
Only available for WAVE.
The following options are available on the Video tab:
Check box
Change
quality
settings for
this video
only
Activates the quality slider and the bit rate options in order to change the
output settings for this video only.
Quality
slider
Defines and displays the output quality in terms of video bit rate. A default
video bit rate is preselected by a calculation. The default bit rate provides you
good quality.
In order to adjust the quality individually, you can move the slider.