Platinum™ IP3
Installation and Operation Manual
Audio TDM Crosspoint Module
(PX-ATDM64-X28)
© 2016 Imagine Communications Corp.
Proprietary and Confidential.
September 2016 | Page 92
Functionality
The
Audio TDM Crosspoint Module
provides the following functionality:
16/20/24 bit Audio Processing
The Audio TDM architecture supports processing of 16-bit, 20-bit, and 24-bit audio samples. Bits per
sample are automatically detected by the TDM architecture
Transitions
When switching between 2 audio signals, transitions such as V-Fade, Fade Cut, Cut Fade, and
Synchronous are supported. Transition type and duration are assigned on a per-output basis.
Quiet Switching
Quiet switching between two audio signals is supported as a predefined transition type. Quiet switching
is implemented as a v-fade of two signals with minimum duration.
Synchronous Switching
AES streams are switched synchronously, at the AES frame boundary, with respect to a DARS.
Asynchronous Signals
Asynchronous inputs are re-sampled to a common reference frequency to avoid periodic
adding/dropping of samples.
Level Adjustment
TDM Input/Output Modules support audio level adjustment from -30dBFS to +3dBFS. From -30dBFS to
0, adjustments will occur in 0.5dBFS increments and adjust in 0.33dBFS increments from 0 to +3dBFS.
Sample Rate Conversion (SRC)
The Audio TDM Crosspoint does not Sample Rate Convert (SRC) the audio signals. SRC is done on the
Input Audio TDM modules. Audio sampled at 32 kHz to 96 kHz can be Sample Rate Converted to 48 kHz
and locked to the Digital Audio Reference Signals (DARS) connected to the Platinum IP3 frame.
