Tieline Bridge-IT XTRA, Руководство пользователя

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© Tieline Pty. Ltd. 2015
Bridge-IT XTRA Manual
VLAN Interface (VLAN configuration only)
This setting applies the VLAN settings to a physical Ethernet port in the codec. Only one physical
Ethernet port is available which cannot be reconfigured.
19.2 Selecting an Algorithm
The codec offers a range of high quality algorithm options as well as 16 Bit 22kHz linear audio at
less than 12 ms encode delay for high quality, uncompressed audio.
All Bridge-IT and Bridge-IT XTRA codecs include Opus, MPEG Layer 2, G.711 and G.722
algorithms, as well as the AAC suite of algorithms and Tieline Music and MusicPLUS as standard.
Music and Music PLUS are optimized for wired and wireless IP connections.
aptX® Enhanced is included in Bridge-IT XTRA and can be purchased separately as a license
upgrade in Bridge-IT codecs.
Bridge-IT Algorithm Encode License Options Bridge-IT Bridge-IT XTRA
AAC-LD, AAC-ELD, LC-AAC, HE-AAC v.1 and HE-AAC v.2
algorithms
16 bit and 24 bit aptX® Enhanced algorithm
*
Included
* Option available for purchase separately if required.
Note: Bridge-IT has a range of default connection profiles that make it very simple to easily program
your codec to connect using all available algorithms. See
Choosing Dialing Profiles for more details.
Overview of Tieline Algorithms
1. The Tieline Music algorithm is optimized for audio bit rates as low as 19.2kbps with only a 20
millisecond encode delay. It offers 15 kHz mono from 24Kbps to 48Kbps.
2. Tieline MusicPLUS delivers up to 20 kHz mono from 48kbps upwards. It can also deliver up to 20
kHz stereo from 96kbps upwards, offering huge savings on your IP data bills and outstanding
audio quality.
Overview of AAC Algorithms
Important Notes: AAC algorithms are only available in Bridge-IT if the AAC license has
been purchased and uploaded into the Bridge-IT codec. For more information see Installing
Software Licenses .
AAC-LC
LC-AAC is optimised for audio bit-rates of 64Kbps per channel or higher using a sample rate of
48kHz. Tieline recommends using LC-AAC instead of HE-AAC if bandwidth of 64Kbps or higher
per channel is available, to optimise audio quality. If lower than 64Kbps is available, consider
using HE-AAC, Tieline Music or Tieline MusicPLUS.
AAC-HE
Codecs include both HE-AAC v.1 and HE-AAC v.2, which are optimized for low bit rate
connections. Selection of HE-AAC v.1 and v.2 is automatically managed within the codec, so
only
AAC-HE is displayed on the screen. When used for mono connections, HE-AAC v.1
performs best at bit rates of 24kbps per channel or higher. HE-AAC v.1 is also used for stereo