< Previous | Contents | Next >

Chapter 15 AUDIO

Less than 100 years ago, movies were silent. We’ve come a very long way since “The Jazz Singer” (1927, Warner Bros.), and great audio now plays a huge role in video production. TriCaster™ provides an extensive set of professional quality audio tools, which we’ll explore in this chapter.

External audio connections and basic configuration were touched on back in Sections 3.5.1 and 3.8.1. TriCaster presents more precise control over individual audio sources and outputs in a tabbed pane labeled Audio Mixer, found just below the main Switcher.

FIGURE 247 (TRICASTER 8000 SHOWN)

Compact sub-panels in this pane provide configuration and control for individual audio sources and also audio outputs as follows, from left to right:

 External audio sources – controls for Inputs 1-(4 or 8, depending on the TriCaster model), along with Network audio sources.

 Internal sources – Media Players, and Effects (sound embedded in Animation Store transitions)

 Record – controls levels for capturing Output 1 and Output 2 as a/v files

 Stream – controls TriCaster’s web stream output

 Aux 1 & 2–controls for TriCaster’s two stereo Aux audio busses

 Master 1 & 2 – controls TriCaster’s primary stereo audio busses

NOTE: 4-input TriCaster systems do not provide analog output connections for channel C and D. However the extra channels can be recorded, streamed, or output via SDI- embedded connections.

15.1.1 AUDIO SPECIFICATIONS

TriCaster’s analog audio conforms to SMPTE RP-155. The maximum input/output level is +24 dBu. Nominal input level is +4 dBu (-20dBFS), and the sample rate is 96 kHz. Levels above 0dBVU are shown in red in the VU meters, to caution you that overly high levels can result in clipping in recordings.

Hint: An error message appears in the Status Bar above the main Program output monitor to warn you if clipping occurs – see Section 7.4; see also Section 15.7 (Advanced Configuration) and Section 15.8.1 (Headroom Notes).

< Previous | Contents | Next >