Source options, Audio – Grass Valley ProCoder 3 User Manual

Page 121

CHAPTER

o n

t e

n t

I n

t r

u c

t i

o n

I n

s t

a l l

a t i

o n

ProCoder 3

i z

a r

Using ProCoder

Helpful Hints

ProCoder

Reference

Glossary

Index

Source Options

Interlacing

Displays the interlacing mode of the video stream. This option determines how video
frames are read from the video stream. If the Interlacing mode is set improperly, the
video may not play smoothly.

Non-Interlaced
(Progressive)

Entire frames are stored in the stream instead of separate fields.

Lower/Bottom Field
First

Frames are stored as separate fields with the lower field first.

Upper/Top Field First

Frames are stored as separate fields with the upper field first.

Aspect Ratio

Displays or selects the aspect ratio of the source image, as width x height, width:
height or a width-to-height ratio for the video frame and/or the display pixels.

Audio

Select Audio Stream

Selects whether to use the audio from the source (if any), to use alternate audio from
another file or to ignore the source audio entirely.

Original Audio

Use the audio in the source.

Alternate Audio

Use audio from an alternate file. Select the source for the audio in
the Audio Stream Source field.

None

Do not use the audio in the source and treat it as a video-only
stream.

Audio Stream SourceIf

Alternate Audio is selected for Select Audio Stream, select the file to get audio from
by clicking the ... button. Audio can be retrieved from any supported source type.

Channels

Displays the number of channels in the audio source.

Sample Rate (kHz)

Displays the sampling rate or number of samples per second, of the source in
thousands of samples per second. The reproducible frequency range of encoded
audio depends on the sample rate.

Bits / Sample

Displays the audio sample size for the source in bits per sample. The more bits per
sample, the better the representation of changes in the audio level and the better
the audio quality. The combination of sample rate and bits per sample determine the
overall quality of the audio.





