mp3gain 無法處理 flac
有什麼軟體有 mp3gain 的功能且能處理 flac 呢？
thanks
p.s.
試過 foobar2000 的 replayGain
可惜我的播放裝置不認得 replayGain
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1tac wrote:
不對音頻解碼編碼, 就只能從tag下手, Flac跟MP3一樣都是用ReplayGain這個tag來調整音量的
你的撥放裝置不認識ReplayGain這個tag, 又不想對音頻解碼編碼, 根本無解
mp3Gain 不對音頻解碼編碼的
見如下說明
https://en.wikipedia.org/wiki/MP3Gain
MP3Gain Technical details
MP3Gain first computes the desired gain (volume adjustment), either per track or per album, using the ReplayGain algorithm. It then modifies the overall volume scale factor in each MP3 frame, and writes undo information as a tag (in APEv2, or ID3v2 format) making this a reversible process. The scale factor modification can be reversed using the information in the added tag and the tag may be removed. MP3Gain does not introduce any digital generation loss because it does not decode and re-encode the file.
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1tac wrote:
你的撥放裝置不認識ReplayGain這個tag, 又不想對音頻解碼編碼, 根本無解
可惜對 flac 加上 replaygain 到其 audio data (not tag) 是會損失音質的
如果會損失音質，那就沒有轉的意義了，不如直接轉 mp3 了
https://hydrogenaud.io/index.php/topic,44475.0.html
flac.exe has an "--apply-replaygain-which-is-not-lossless" option.
You could use flac -dc input.flac --apply-replaygain-which-is-not-lossless | flac - -o output.flac
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carloszhang wrote:
你文章只看一半, 你自己引的貼文下面就有人提到 metaflac --add-replay-gain 這種只加tag的無損方法
其實都看過了
https://xiph.org/flac/documentation_tools_metaflac.html
--add-replay-gain
Calculates the title and album gains/peaks of the given FLAC files as if all the files were part of one album, then stores them as FLAC tags. The tags are the same as those used by vorbisgain. Existing ReplayGain tags will be replaced.
再看 vorbisGain
https://sjeng.org/vorbisgain.html
It is based upon the ReplayGain technology.
The end result is that playback is both more convenient and of higher quality compared to a non-VorbisGain'ed file.
It needs player support to work. Non-supporting players will play back the files without problems, but you'll miss out on the benefits.
我硬體都不支援 replayGain 了, 想當然爾更不會支援 replayGain 的修改版 vorbisgain.
Anyway thanks for reply.
