Codec Tieline Gateway - Page 250

250 Gateway and Gateway 4 Manual v1.2
© Tieline Research Pty. Ltd. 2021
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
w here high
connection bandw idth
is available and very
low delay is highly
desirable.
· Resilient with multiple
encodes/decodes
w hen 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
TxTran /
RxTran
NOT FOR
BROADCAST USE
NOT FOR BROADCAST
USE
Algorithm Selection Guide
Algorithm
Very Low
Delay
Moderate
to High
Delay
Excellent
Performance
at Low
Bit rates
Preferred
for Live
Remotes
Preferred for
STLs and
Audio
Distribution
Highly
Compatible
with other
Codecs
Linear/PCM
Opus
Tieline Music
Tieline MusicPLUS
aptX Enhanced
LC-AAC
HE-AACv1
HE-AACv2
*
AAC-LD
AAC-ELD
MPEG Layer 2
MPEG Layer 3
G.722
G.711
* Use with caution for remotes due to high delay; not suitable when bidirectional communications is
required.