User Guide

Adobe Premiere Pro Help Producing Final Video
Using Help | Contents | Index Back 293
Codec Specifies the compressor/decompressor from those available on your system.
Quality Specifies the encoding quality. Higher values increase render time.
TV Standard Conforms the output to the NTSC or PAL standard.
Aspect Ratio Specifies the output aspect ratio of either 4:3 or 16:9.
Frame Rate Displays the output frame rate for either NTSC or PAL formats.
Program Sequence Specifies the output scan mode.
Field Order Appears only if you select Interlaced as the Program Sequence option.
Specifies the output field order.
Bitrate Encoding Specifies the compression technique used. Constant Bit Rate (CBR)
compresses data to a fixed rate. CBR keeps the rate constant by varying the amount of
compression (and thereby quality) as required by the specified data rate. Variable Bit Rate
(VBR) compresses data to fit between a fixed minimum and fixed maximum rate. VBR
allows the compression to vary, which can result in better quality than CBR.
M frames Specifies the number of B frames between consecutive I and P frames.
N frames Specifies the number of frames between I frames. This value must be a multiple
of the M frames value.
Bitrate Only appears if you select CBR as the Bitrate Encoding option. Specifies the
number of megabits per second you want the encoded file to have.
The following options appear only if you select VBR as the Bitrate Encoding option:
Encoding Passes Enabled for VBR only. Specifies the number of times the encoder will
analyze the clip before encoding.
Target Bitrate Specifies the number of megabits per second you want the encoded file
to have.
Maximum Bitrate Specifies the maximum number of megabits per second you want the
encoder to allow.
Minimum Bitrate Specifies the minimum number of megabits per second you want the
encoder to allow. The minimum bitrate differs according to the format. For MPEG-2 - DVD,
the minimum bitrate must be at least 1.5 Mbps.
VBV Buffer Specifies the maximum amount of data for the Video Buffering Verifier.
Note: The Format option MPEG-2 includes many options not listed here. MPEG-2
provides
an extended option set for advanced use only. In most cases, select a format specific to
your target output, such as MPEG-2 - DVD. For detailed information on options not listed,
consult the industry specifications for the MPEG-2 format.
Audio preset options
The Audio transcode settings contain the following options, depending on the codec
chosen:
Codec Specifies the codec the encoder uses to compress the audio:
• SurCode for Dolby Digital 5.1 is a high-quality encoding format developed for
multichannel
digital sound and the most common encoder for DVD-video. It is also a
requirement for NTSC discs.
• MainConcept MPEG Audio is a high-quality encoder included with Adobe Premiere Pro.
Using Help | Contents | Index Back 294
Adobe Premiere Pro Help Producing Final Video
Using Help | Contents | Index Back 294
• PCM (pulse-code modulation) Audio is a lossless audio format sampled at 48 kHz. Files
of this format tend to be large, occupying more disc space than the other encoder
formats.