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發表於 2010-7-3 17:57:38
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本文章最後由 len1978 於 2010-7-3 18:15 編輯
小弟是想,要看HDMI傳送音訊訊號的格式來決定。
不管線材傳送資訊損失的情況下,現在的HDMI都是送數位音訊資料給擴大機作DAC轉換。影響聲音表現的源頭,要從擴大機開始考慮才對。
若有不同的HDMI線造成聽到不同的聲音效果,那只是有一條HDMI線傳輸出問題造成有資料損失較嚴重的情況吧。
參考資料1:DTS-HD WIKI
DTS-HD Master Audio may be transported to AV receivers in 5.1, 6.1 or 7.1 channels, at full uncompressed quality, in one of three ways depending on player and/or receiver support:
- Over 6, 7 or 8 RCA connectors as analog audio, using the player's internal decoder and digital-to-analog converter (DAC).
- Over HDMI 1.1 (or higher) connections as 6-, 7- or 8-channel linear PCM, using the player's decoder and the AV receiver's DAC.
- Over HDMI 1.3 (or higher) connections as the original DTS-HD Master Audio bitstream, with decoding and DAC both done by the AV receiver.
參考資料2:DAC WIKI
In electronics, a digital-to-analog converter (DAC or D-to-A) is a device that converts a digital (usually binary) code to an analog signal (current, voltage, or electric charge). An analog-to-digital converter (ADC) performs the reverse operation.
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不過這又引出一個新問題了...有人知道HDMI線傳輸資料的損失程度,在多少%以內就可以通過HDMI認證,各位網友使用的HDMI線材,資料損失的情況我想也沒人去測試過...
這個問題跟調音應該是沒啥關係就是。 |
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