<?xml version="1.0" encoding="utf-8"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:sy="http://purl.org/rss/1.0/modules/syndication/"><channel><title>MagicLen</title><link>https://magiclen.org/tag/fdkaac/feed</link><description>多元化原創文章，內容包羅萬象，有程式語言、網站應用、軟體介紹、硬體介紹、作業系統、旅行遊記、專題採訪、益智問題、文學創作，以及作者們的知識分享和作品分享。</description><language>zh-TW</language><lastBuildDate>Tue, 28 Apr 2026 12:06:23 +0000</lastBuildDate><sy:updatePeriod>hourly</sy:updatePeriod><sy:updateFrequency>8</sy:updateFrequency><sy:updateBase>1970-01-01T00:00+00:00</sy:updateBase><item><title>在Linux上使用FDK AAC將音樂轉成M4A(AAC、HE-AAC、HE-AACv2)格式</title><link>https://magiclen.org/linux-fdk-aac</link><description><![CDATA[    <img src="https://magiclen.org/wp-content/uploads/2023/09/p5m5-220x162.png" srcset="https://magiclen.org/wp-content/uploads/2023/09/p5m5-220x162.png 1x, https://magiclen.org/wp-content/uploads/2023/09/p5m5-440x324.png 2x, https://magiclen.org/wp-content/uploads/2023/09/p5m5-660x486.png 3x" alt="">
M4A是封裝於MPEG4，使用AAC(進階音訊編碼, Advanced Audio Coding)格式壓縮的音訊檔案。若拿相同大小的MP3和AAC格式的音樂檔案來比較，AAC的音質通常會比MP3還要來得好。在低位元率下，HE-AAC和HE-AACv2的音質遠勝於MP3。AAC的取樣精度最高可到32位元，MP3則只有16位元；AAC的取樣頻率最高可以達到96kHz，MP3則只有48kHz。因此現在愈...]]></description><category>研究分享</category><category>軟體介紹</category><category>Linux</category><category>AAC</category><category>APE</category><category>FDK AAC</category><category>fdkaac</category><category>FLAC</category><category>HE-AAC</category><category>HE-AACv2</category><category>LAME</category><category>Linux</category><category>M4A</category><category>Ogg</category><category>opusdec</category><category>影音</category><guid>https://magiclen.org/linux-fdk-aac</guid><pubDate>Tue, 9 Feb 2016 13:46:52 +0800</pubDate><dc:creator>Magic Len</dc:creator></item></channel></rss>