![]() ![]() ![]() That all looks good, but there are also issues with DSD. How about other formats? MP3, AAC, WAV, FLAC: all the audio file formats explainedĪstell & Kern's A&norma SR25 MKII supports native DSD256 playback.Where there is a balance of the two values, we’re at, or close to, the zero signal point. The more 0s there are, the lower the waveform goes, and it’s the opposite for ones. If you could look at a DSD digital stream, it’s possible to draw the analogue waveform simply by looking at the density of 0s and 1s. DSD fans claim the format is as close to analogue as digital gets. Standard DSD recordings are still relatively rare compared with the PCM alternatives, and those higher-speed versions are extremely niche. There's even a DSD512 spec, though we've never heard any material encoded in it. Standard DSD is sometimes called DSD64 for this reason, with double- and quadruple-speed versions called DSD128 and DSD256 respectively. That resolution shortfall is made up by the very high sampling rate of over 2.8 million times a second – that’s 64 times the speed of CD. Compared with the over 65,000 different values 16-bit PCM has, the two values (0 if the new sample if the signal is lower or 1 if it’s higher) of DSD appear mighty limiting. DSD uses a single bit of information, and all this information tells us is whether the current sample of the analogue waveform is higher or lower than in the previous one. ![]()
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