NCast Presentation Recorder Reference Manual
5.5.
E
DIT
C
HANNEL
– P
ROFILE
5.5.1. Set Video Quality
Each channel can be assigned a video quality (bit-rate) level. Use the standard settings or choose Custom
(see the section below).
5.5.2. Set Audio Profile
This menu pulldown selects the bandwidth and encoding properties of the audio media stream associated
with the graphics stream. All audio is encoded in the Advanced Audio Coding (AAC) format. Different bit-
rates and an optional stereo setting provide for a wide selection of audio formats to be associated with the
graphics media stream.
Sample Rate
Channels
Bit Rate
Quality
11 kHz.
Mono
16 kbps.
Phone
22 kHz.
Mono
32 kbps.
FM radio
44 kHz.
Mono
64 kbps.
CD
44 kHz.
Stereo
128 kbps.
Stereo CD
If audio is not to be transmitted or recorded, it may be disabled here as well.
If recording in Mono and using the Line input, make sure that active audio is available on the LEFT channel.
5.6. E
DIT
C
HANNEL
– C
USTOMIZED
P
ROFILE
S
ETTINGS
5.6.1. Format
Select the type of compression encoding desired. The two choices:
•
MPEG-4 (MPEG-4 Part 2 encoding, original MPEG standard)
•
H.264 (MPEG-4 Part 10 encoding, latest industry standard)
Nearly all encoding currently done uses H.264. Choose this as the default.
NCast Corporation
Revision 2.2
Page 34
