![]() The four tried and tested Super-Noise-Shaping (‘SNS’) curves are extended to include optimal shaping for the higher sampling rates. Synchronous sample-rate-conversion, if correctly performed, is free of the distortion artifacts associated with conventional ‘variable-rate’ SRCs. So you can re-process your 96kHz, 24-bit masters to 44.1kHz 16-bit streams for CD, or you can up-sample low-rate recordings for post-processing at a higher rate… in fact, you can convert between any two standard sampling-rates – synchronously. The ‘D-D’ (digital-to-digital) path, first provided in the AD-1, has been improved still further in the AD-2: It still offers re-dithering, noise-shaping and DRE encoding / decoding, but now it has synchronous sample-rate-conversion (SRC) as well. Just as with the AD-1, the inputs are transformerless, electronically balanced and galvanically isolated (fully floating), to ensure freedom from noise pick-up and crosstalk.ĭigital to Digital Sample Rate Conversion ![]() For example, you can output a 96kHz / 24-bit signal and a 44.1kHz / 16-bit noise-shaped signal at the same time.Īpart from its breathtaking performance, the analogue front-end of the AD-2 includes many new features: Analogue input sensitivity (and inter-channel balance) is software-programmable over the entire range with 0.05dB resolution. These can have different sampling rates, different word-lengths – even use different noise-shapers. The AD-2 is like two separate A/D converters, plus a digital processor, all in one: it can generate two entirely separate output signals simultaneously. ![]() Clock stability, and rejection of incoming reference jitter are also improved. Converter performance is pushed ever-nearer the limit: Dynamic range reaches a massive 130dB, THD+N at full scale is raised to 108dB (0.0005%).
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