Sampling rate – Telos ZephyrExpress User Manual
Page 92
5-14 CODING
•
L2 JOINT
(Joint Stereo) mode uses the “intensity coding” method in order to provide
maximum quality for stereo program material. Delay is also compensated to
preserve phase.
Sampling Rate
This option sets the sample rate for the transmitted and received coded audio.
Input/output is independent and is set in the AES menus. The Layer 3 mode may be
operated at either 48 kHz or 32 kHz sample rate.
48 kHz offers lower delay and 20 kHz audio bandwidth. However, the 32 kHz rate is
generally preferred for broadcast applications because no bits are wasted on frequencies
above 15 kHz – which are usually not transmitted in analog broadcasting, anyway.
Layer 2 primarily operates at 48kHz sample rate. However, the
L2 HALF/24
modes allow
operation at 24kHz when this sample rate is desired, primarily when communicating
with “single line” capable Layer 2 codecs.