Editing Direct Stream Digital (section)

===DSD over USB===
An alternative to burning DSD files onto disks for eventual playback is to transfer the (non-encrypted) files from a computer to audio hardware over a digital link such as USB. The [[USB audio]] 2.0 specification defined several formats for the more common PCM approach to digital audio, but did not define a format for DSD.

In 2012, representatives from many companies and others developed a standard to represent and detect DSD audio within PCM frames; the standard, commonly known as DSD over PCM (DoP), is suitable for other digital links that use PCM.<ref name="DoP open Standard">{{cite web |url=http://dsd-guide.com/usb-link-dsd-audio-pcm-frames-andreas-koch |title=Method for transferring DSD Audio over PCM Frames Version 1.1 |first=Andreas |last=Koch |date=March 30, 2012 |publisher=DSD-Guide.com |archive-url=https://web.archive.org/web/20120515083952/http://dsd-guide.com/usb-link-dsd-audio-pcm-frames-andreas-koch |archive-date=May 15, 2012 |access-date=May 14, 2012 |display-authors=etal |url-status=dead |df=mdy }}</ref> The 1.1 revision added protocol support for higher DSD sample rates without requiring an increase the underlying PCM sample rate.