2-10
INSTALLATION — STREAMING ENCODER
ORBAN MODEL
<stream-multicast>
0 – Unicast, 1 - Multicast
<rtsp-server-name-or-address>
123.45.67.8 – ip address or domain name of streaming server
<remote-file-name>
xxxx.sdp – must end with .sdp extension and contain no spaces
<username>
Streaming server encoder username
use “” if username is not used
<password>
Streaming server encoder password
use “” if password is not used
Creating Batch Files
A text editor program can create batch files that use the exact same command-line
syntax as that shown above. Batch files can be executed by double-clicking on them
or by creating a Shortcut or Alias and place it in the Programs Startup folder.
Audio Levels
Ordinarily, analog levels are calibrated to 0 VU. A properly designed audio system
provides at least 20dB of headroom above 0 VU to compensate for the fact that VU
meters do not indicate peaks, instead indicating average levels.
In the digital domain, it is perfectly acceptable for audio levels to reach 0 dBfs
(meaning 0 dB with reference to “full-scale”: the largest peak level that the system
can represent). Note that there is no headroom above 0dBfs, so any attempt to go
above 0 dBfs is likely to cause audible distortion. Digital audio metering (like that
found in Optimod-PC and Opticodec-PC) typically indicates true peaks, displays the
exact dynamic range usage accurately, and makes it easy to prevent distortion
caused by peak overloads.
Not all sound device software can accurately meter audio peak levels. If
yours cannot, you must use a calibrated meter application like Pinguin
Audio Meter.
Precision peak level control is an important feature of Optimod-PC — it automati-
cally prevents Opticodec-PC from ever being overdriven. This prevents the distortion
often associated with excessive levels and keeps your audio sounding professional.
