- #12 [無聊會員], 23-04-10 00:31
- #11 [wklie], 23-04-09 23:57#10:
HDCD uses the bits to extend the dynamic range by a little.
MQA uses the bits to encode the musical signal from 22kHz to 44/48kHz which is absent from CD. This range is required to capture the musical information from natural instruments, as seen in the triangle in MQA marketing materials. In addition, it contains MQA rendering instructions for MQA full decoders or renderers.
最後修改時間: 2023-04-09 23:58:05 - #10 [無聊會員], 23-04-09 22:15[#8]
LaLaLam兄,
謝謝解釋, 另外請教HDCD應該都係利用果4個bits, 是否以前嘅Pacific Microsonics都用近似嘅技術?
最後修改時間: 2023-04-09 22:18:46 -
- #9 [VinylBear], 23-04-09 21:28#8 咁嘅商業秘密你都知 好嘢. 怪不得用了MQA的歌曲少咗好多低頻 很薄声. 那些youtube reviewers 把MQA講得好聽啲就係叫做很多空氣感. Hi-Fi magazines 的 reviews 已經係講大話, 有些 YouTube reviewers 的 reviews 都一樣係.
- #8 [LaLaLam], 23-04-09 20:28Music file 或 CD的 16 bits 的LSB 4個bits當底噪,俾佢抽左出黎用一種叫"pseudo random noise coding”, code左D高頻訊息落去,所以要特別解碼,也要收費,一講錢自然多爭論,這種 PRN coding其實 4G/5G手機通訊用好多,也可能涉及專利收費,利益千絲萬縷。
- #7 [karas], 23-04-09 20:00其實邊一部分加密左?
個file不同? 要特別解碼? - #6 [ich], 23-04-08 22:11youtube上絕大多數的reviewers都話ABC好聲過XYZ. 但我都唔知好唔好信佢哋. 唔知道佢哋有冇收咗著數這樣講.
抱以上觀念的話就無謂睇任何YT reviews 了 - #5 [LaLaLam], 23-04-08 18:17商業社會,好多時呢類review當然同既得利益有關!
- #4 [VinylBear], 23-04-08 17:47youtube上絕大多數的reviewers都話MQA好聲過Qbz. 但我都唔知好唔好信佢哋. 唔知道佢哋有冇收咗著數這樣講.
- #3 [VinylBear], 23-04-08 17:44
- #2 [LaLaLam], 23-04-08 17:43會有白武士的,不過 MQA 反對者頗多。
- #1 [VinylBear], 23-04-08 16:08MQA公司宣布破產
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謝謝, 呢D我知, CD只係一個載體, 一般聽係CD-DA, 我想知係個file嘅處理, 一般錄嘅時候用24/96LPCM, mixing, mastering之後個file點處理?