User Guide

FILE FORMATS AND ATTRIBUTES

10.From the File menu in the NetShow Player select Properties. Note the

following Properties pages:

The General page contains the general information contained within the

AVI file.

The Details page shows that the ASF file has a bit-rate of 875,000 bps.

The Codecs page displays information about the codecs being used with

the file.

AUTHORING A LOW BIT-RATE ASF FILE

This section of the tutorial creates a low bit-rate video suitable for playback on

the Internet at 28.8 Kbps. SAMPLE2.AVI is a smaller version of SAMPLE1.AVI.

It uses the Intel Indeo Interactive codec and has been re-sized to 160 x 120 at

6 frames per second with one key frame every 36 frames. The VDOnet

VDOWave codec and the Intel Indeo Interactive codec require that the video

frame size be a multiple of 16 (i.e., 160 x 120, 320 x 240, etc.).The audio track

in this file is PCM.The steps below describe how to use the VDOnet VDOWave

video codec, which is an exceptional codec for low bit-rate content.

1. From the File menu, open SAMPLE2.AVI from the \SAMPLES\NETSHOW

folder on the Sound Forge XP CD-ROM. You will be prompted with a

message from Sound Forge XP asking if you want to disable the video strip.

Select No.

2. Note that editing and playback performance of an AVI file will suffer greatly

unless you first copy it to your hard drive. It is strongly recommended that

you always copy AVI files that you are editing onto your hard disk.

3. From the File menu select Properties. Select the Format page and set the audio

Sample Size to 16 bits and verify that Channels is set to mono. Select OK.

4. From the Process menu select the Resample command. In the Resample dialog,

set the New Sample Rate to 8,000 and select OK.

5. From the Process menu select the Normalize command and select OK.