TW202418268A - 用於將聲音或聲場的高階保真立體音響（ｈｏａ）表示予以解碼的方法及裝置 - Google Patents

用於將聲音或聲場的高階保真立體音響（ｈｏａ）表示予以解碼的方法及裝置 Download PDF

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Publication number
TW202418268A
TW202418268A TW112123781A TW112123781A TW202418268A TW 202418268 A TW202418268 A TW 202418268A TW 112123781 A TW112123781 A TW 112123781A TW 112123781 A TW112123781 A TW 112123781A TW 202418268 A TW202418268 A TW 202418268A
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Taiwan
Prior art keywords
data frame
frame representation
bits
hoa data
hoa
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TW112123781A
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English (en)
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亞歷山德 克魯格
斯凡 科登
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瑞典商杜比國際公司
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Publication of TW202418268A publication Critical patent/TW202418268A/zh

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Abstract

本發明係為一種判定非差分增益值表示所需最低整數位元數以用於高階保真立體音響(HOA)資料框表示壓縮之裝置，當壓縮一HOA資料框表示時，於進行知覺編碼(16)前，應用一增益控制(15、151)用於各聲道信號，依一差分方式傳送增益值作為邊資訊。然而，用以開始此類串流壓縮HOA資料框表示之解碼，需要絕對增益值，其應以最小位元數編碼。用以判定此類最低整數位元數，將HOA資料框表示(<b><i>C</i></b>(<i>k</i>))於空間域中呈現至位於一單位球面上之虛擬揚聲器信號，隨後進行HOA資料框表示(<b><i>C</i></b>(<i>k</i>))之正規化，接著將最低整數位元數設成<img align="absmiddle" height="45px" width="304px" file="d10055.TIF" alt="其他非圖式ed10055.png" img-content="character" orientation="portrait" inline="no" giffile="ed10055.png"/>。
TW112123781A 2014-06-27 2015-06-26 用於將聲音或聲場的高階保真立體音響（ｈｏａ）表示予以解碼的方法及裝置 TW202418268A (zh)

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EP14306024.2 2014-06-27

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TW202418268A true TW202418268A (zh) 2024-05-01

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