Tieline Bridge-IT, Руководство пользователя

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175
© Tieline Research Pty. Ltd. 2019
Bridge-IT Manual v4.0
HE-AAC v.2 Up to
15kHz 128ms Minimum
16kbps
(Mono);
24kbps
(stereo) 7.4kbps
· High quality voice
and music
·
Low bit rates
· High delay
· Used for DAB+ radio
streaming
·
Ideal for low bit rate
remotes
·
Use when bidirectional
communication
between announcers
is not required
AAC-LD Up to
20kHz 20ms at
48kHz 48kbps
minimum 30kbps
· Very high quality
voice and music
· Very low delay at
low to moderate
bit rates
· Very high quality, very
low delay STLs and
audio distribution
· Remote connections
able to achieve 48kbps
for each audio channel
requiring
· Suitable when
bidirectional
communication
between announcers
is required
AAC-ELD Up to
20kHz 15-30ms 24 kbps
minimum 15-30kbps
· Very high quality
voice and music
· Very low delay at
low bit rates
· Great for live voice or
music remotes
· Suitable when
bidirectional
communication
between announcers
is required
AAC-ELDv.2 Up to
20kHz 35ms Pending
release Pending
release
· High quality voice
and music
·
Low delay at low
bit rates
· Great for live voice or
music remotes where
limited connection
bandwidth is available
·
Suitable when
bidirectional
communication
between announcers
is required
aptX Enhanced 10Hz-
24kHz 2.5ms at
48kHz 128kbps
minimum
(16bit; 32kHz)
to 288kbps
(24bit;48kHz) 80kbps
· Very high quality
voice and music
·
Extremely low
delay at high bit
rates
·
Highly cascade
resilient
· Ideal for STLs and
audio distribution
where high connection
bandwidth is available
and very low delay is
highly desirable.
·
Resilient with multiple
encodes/decodes
when required
Opus 4Hz-
20kHz 20ms 9.6-256kbps 16kbps
·
Very high quality
voice and music
· Very low delay at
low bit rates
·
"Opus Voice" is ideal
for high quality, and
low delay voice quality
remotes at extremely
low bit rates.
· "Opus Mono" and
"Opus Stereo" are
perfect for high fidelity
remotes, STLs and
audio distribution at
higher bit rates
Algorithm Selection Guide
Algorithm Very Low
Delay
Moder-
ate to High
Delay
Excell-
ent Perfor-
mance at
Low
Bit rates
Preferr-
ed for Live
Remotes
Preferred for
STLs and
Audio Distribu-
tion
Highly
Compat-
ible with other
Codecs
Linear/PCM
Opus
Tieline Music
Tieline MusicPLUS