Operation Manual

250 | CHAPTER 14
There are several ways to set up your system, depending on the sound card and speaker setup you are using.
Setting up surround projects
You can configure a Vegas Pro project to use 5.1 surround in the Project Properties dialog. You can also choose to apply a low-pass
filter for the LFE channel. Applying a low-pass filter approximates the bass-management system in a 5.1 decoder and ensures that
you’re sending only low-frequency audio to the LFE channel.
1. From the File menu, choose Properties.
2. Click the Audio tab.
3. From the Master bus mode drop-down list, choose 5.1 surround.
4. To limit the audio sent to the LFE channel, do the following:
• Select the Enable low-pass filter on LFE check box and enter a value in the Cutoff frequency for low-pass filter box. The
low-pass filter isolates the audio sent to the LFE channel by limiting it to frequencies lower than the value entered in the
Cutoff frequency for low-pass filter box.
• Choose a setting from the Low-pass filter quality drop-down list to determine the sharpness of the filter’s rolloff curve.
Best produces the sharpest curve.
5. Click OK.
The track list, Master Bus window, and Mixing Console switch to 5.1 surround mode.
Six powered speakers Six passive speakers with a six-channel amplifier
5.1-compatible
sound card
Connect powered speakers to your sound card’s
outputs as indicated by your sound card’s
documentation.
Connect your sound card’s front, rear, and center/
subwoofer outputs to the appropriate inputs on a
six-channel amplifier/home theater receiver. Connect
front, rear, center, and LFE speakers to the amplifier.
Sound card with
three stereo
outputs
Connect powered speakers to your sound card’s
outputs where you have routed each of the pairs
of channels. The left channel of the Center/LFE
pair is the center channel; the right channel is the
LFE channel.
Connect your sound card’s outputs to the appropriate
inputs on a six-channel amplifier/home theater receiver.
Connect front, rear, center, and LFE speakers to the
amplifier.
Three stereo
sound cards
Connect powered speakers to your sound cards’
outputs where you have routed each of the pairs
of channels. The left channel of the Center/LFE
pair is the center channel; the right channel is the
LFE channel.
Connect your sound card’s outputs to the appropriate
inputs on a six-channel amplifier/home theater receiver.
Connect front, rear, center, and LFE speakers to the
amplifier.
Note: Before rendering your surround project, check your surround authoring application’s documentation to determine its
required audio format. Some encoders require a specific cutoff frequency and rolloff, while other encoders require that no filter be
applied before encoding.