2009年，有个Paul Miller的测试了几个流行品牌的av前级的同轴和hdmi输出质量，发现hdmi输出的时钟抖动几乎比同轴输出高10倍（只有先锋LX81很优秀），所以hdmi输出把抖动做低并不是一件简单的事情。"In the Feb 2009 edition of the Hi-fi News magazine Paul Miller measured the following jitter results for a few A/V amplifiers:Denon AVR-3803A---------------SPDIF: 560psecHDMI: 3700psecOnkyo TX-NR906---------------SPDIF: 470psecHDMI: 3860psecPioneer SC-LX81---------------SPDIF: 37psecHDMI: 50psecYamaha RX-V3900---------------SPDIF: 183psecHDMI: 7660psec"
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