Networked VGA Grid User Guide
Configure encoding (HD Encoder channels)
Value
Description
devices such as, digital telephone systems.
Most digital signals (HDMI or SDI sources) use 48 kHz audio. Matching the encoded
level with the source level provides the best sound quality by avoiding audio
resampling. For analog signals, 44 kHz provides higher sampling.
Flash (FLV) doesn't support 48 kHz PCM audio. When selecting this
value you'll need to use a media player (or install ASF browser plugins)
to preview your channel.
G.711 8KHz (a-Law)
Used primarily in North America for streaming and recording voice. This codec uses
only 64 kbps of bandwidth.
G.711 8KHz (µ-Law)
Used in counties outside North America.
Codec and file format compatibility
Not all streaming and recording prootocols support all combinations of video and audio codecs. Use the
tables below to determine what settings work for your streaming and recording needs.
The following table displays the compatibility between the video/audio codecs and formats supported for
streaming.
Video Codec selected
Audio Codec selec-
ted
RTSP
FLV
ASF
MPEG-TS
MJPEG
H.264
No audio codec
ü
ü
ü
ü
H.264
LPCM
ü
ü
ü
H.264
MP3
ü
ü
ü
ü
H.264
AAC
ü
ü
ü
ü
MPEG-4
No audio codec
ü
MPEG-4
LPCM
ü
MPEG-4
MP3
ü
MPEG-4
AAC
ü
MJPEG
No audio codec
ü
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