This is where the original DSD signal has been converted to 24-bit/352kHz PCM and processed in that form throughout. You may come across the term DXD on a recording. All the things that are required post-recording such as equalisation, editing, dynamic range control and adding reverb usually involve the DSD stream being converted to PCM to do the processing and then switched back. What are the advantages and disadvantages of DSDĭSD has better quality than PCM because DSD has a very high sampling frequency level, it is only necessary to use simple filters at low frequency, less distortion compared to the original.ĭSD also has its limitations. The DSF has the ability to store more metadata for the track, while the DFF does not have this capability. Standard DSD is sometimes called DSD64 (2.8224MHz) for this reason, with double, quadruple and octuple speed versions called DSD128 (5.6448MHz) and DSD256 (11,2MHz), DSD512 (22,5792MHz).ĭSD audio has 2 formats to store is DSF and DFF. I don't know if Amanero has a firmware that supports this second method.DSD uses a 1 bit of information and has a sampling rate of 2.8 million times per second that’s 64 times the speed of CD. I assume this need to be implemented in the media player when encoding DSD to the DoP and the receiving device needs to know how to process the incoming packets. This also requires the use of a different DSD marker (0x06/0xF9 vs 0x05/0xFA) to distinguish from the first method in the original DoP standard 1.0. This is done by using a PCM channel pair to transmit data for a single DSD channel. In DoP standard 1.1, there is a second method to support DSD128 and beyond without requiring higher sample rate. This would mean that my Buffalo II with the Amanero/Hermes/Cronus, being fed by a MacBook Pro, can play DSD64 and DSD128 in DoP mode but not DSD256 or higher. If my understanding is correct, to process DSD256 and above in DoP, the devices need to be able to support sample rate of 705.6KHz or higher which is above Amanero's spec'ed max sample rate of 384KHz.
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