User Manual “Instreamer“ - V4.03 - 24th October 2013
Warning: For potentially “lossy” transmission types,
typically RTP, use VBR where ever possible.
Note: For devices (e.g. Instreamer 100) with an
IPAM type of “generic” only VBR is supported.
Default:
"VBR".
MPEG CBR bitrate
If MPEG CBR encoding is selected the audio
compression level (and consequently the audio
quality) is selected by the "bitrate" field. Select the
audio bit rate in kilobits per second.
Please note that depending on the sampling rate not
all bitrates are available.
Default:
"128kbps"
Encoding Quality
If MPEG VBR encoding is selected the audio
compression level (and consequently the audio
quality) is selected by this parameter. Choose
between "0 lowest" and "7 highest" in steps of 1.
The encoder quality table below shows the average
bit rate in kilobits per second for the quality settings
and sampling frequencies in kHz using mono input
with MS-Stereo encoding disabled.
Encod./Quality 0 1 2 3 4 5 6 7
MPEG1 48kHz 72 76 80 88 96 112 144 160
MPEG1 44.1kHz 65 68 73 80 90 105 125 140
MPEG1 32kHz 52 56 64 72 80 96 112 136
MPEG2 24kHz 38 44 48 52 60 80 96 112
MPEG2 22.05kHz 35 38 40 45 50 60 75 90
MPEG2 16kHz 28 30 34 40 44 48 56 64
The encoder quality table below shows the average
bit rate in kbit/s (kilobits per second) for the quality
settings and sampling frequencies in kHz using
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