CD机问世以来,音频数码处理技术可谓日新月异。DAC的素质是影响音质的关键,以前,人们普遍把精力放在对DAC高比特化和高fs化的竞争上。以降低对S/N值的影响,简化模拟LPF,从而改善音质音色。随着技术的发展,人们越来越难以容忍高比特DAC所固有的过零交越失真等先天不足,再加上1bit的无失真线性转换及多级噪音整形技术的成熟应用。使得1bit DAC逐渐走向了实用化、高档化。 近年来,世界上许多数码产品产家,如SONY、PHILIPS、TEAC、MARANTZ等都相继应用1bitDAC开发其新产品。1bit DAC通过“噪音整形”的数字负反馈技术,已能获得相当于24bit精度的高分辩率音质和性能。 Since the advent of CD players, audio digital processing technology can be described as ever-changing. DAC quality is the key to affecting the sound quality. In the past, people generally focused their efforts on the high-bit DAC and high-fs competition. To reduce the impact on S / N values ​​and to simplify analog LPF for improved sound quality. As technology evolves, it is becoming more and more difficult to tolerate inherent deficiencies such as zero crossing crossover inherent in high bit DACs, coupled with the maturity of 1 bit distortion-free linear conversion and multistage noise shaping. Making 1bit DAC gradually toward the practical, high-grade. In recent years, many digital product manufacturers in the world, such as SONY, PHILIPS, TEAC, MARANTZ and so on, have successively applied 1bitDAC to develop their new products. The 1bit DAC has achieved high-resolution sound quality and performance equivalent to 24-bit resolution through “noise-shaping” digital negative feedback technology.