Creative 70EM896106000 Owners Manual - Page 111
Appendix, Using High Sample Rates, Overview
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6 - Appendix 6 - Appendix Using High Sample Rates Using High Sample Rates Overview When operating at 176.4k or 192k sample rates, the mixer functionality and number of I/O channels are slightly reduced. The number of ADAT channels also decreases at the 88k/96k and 176/192k sample rates (due to the bandwidth limitations of the optical components). When using 88.2kHz, 96kHz, 176.4kHz or 196kHz sample rates: • Effect processors are disabled. (Output sends & returns are still available.) • ADAT is reduced to 4 channels at 88k/96k, and 2 channels at 176k/192kHz. • ASIO channels are reduced to 8 ASIO (4 stereo) channels at 88k/96k, and 4 ASIO (2 stereo) channels at 176k/192kHz. • At the 176.4kHz & 192kHz sample rates, the number of physical inputs and outputs is reduced. • At the 176.4kHz & 192kHz sample rates, S/PDIF optical is disabled The ADAT optical interface was originally designed to carry 8 channels at a 48kHz sample rate. We use the Sonorus® S/MUX™ standard to encode audio with higher sample rates onto the ADAT light pipe. In this multiplexing scheme, two ADAT channels are used to carry one 88.2k or 96k stream and four ADAT channels are used to carry one 176k or 192k audio stream. In order to use the ADAT interface at these higher sample rates, you must have other equipment that supports the Sonorus S/MUX standard. Selecting a 176/192k Session The three possible input configurations are selected by choosing a session template containing the desired I/O from the New Session window. Once you have selected one of the three session types, you will not be able to change to another type without starting a new session. Select the Type of Session you need Product Default Session 1. Select New Session from the PatchMix DSP toolbar. 2. Choose the 176k/192k tab. 3. Select the Template that meets your requirements and click OK. E-MU PCIe Digital Audio Systems 111