Sonifex COURIER, User Handbook Manual

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Chapter 12 – connectivity
Courier User Handbook 12-15
The Courier beeps to acknowledge completion of the upgrade.
12.4.1.3. Defining the ISDN live transmission
style
This option is used for defining the format in which the audio will be compressed
for live audio transfer over ISDN. Courier uses mpeg layer 2 as the compression
algorithm and can use either 24kHz, or 48kHz sampling rates. The selections that
you make here depend very much on the audio codec that you will be using to
receive and decode the audio at the other end of the ISDN line. Most of the audio
codecs that the Courier was tested with operated at both sample frequencies.
Tests have been carried out with the CCS CDQ Prima, the Telos Zephyr, the
Prodys Pronto 2 and the Dialog 4 MusicTaxi. Courier operated correctly when
connected to all of these units, sending an mpeg audio stream and receiving an
mpeg audio stream from them.
Select the [ISDN Live] option from the [Setup], [Comms Setup] menu :
From here you can change the frequency of your transmission between 24kHz and
48kHz, and you can choose whether to have [Mono] or [Stereo Mix] as your
transmission Record Style. See Section 5.7.3.3 for information on the Record Style
definition.