[求助]請問AAC編碼的音頻可以分離出來嗎？

old235

請問AAC編碼的音頻可以分離出來，把他轉成AC3的格式後
然後再跟視訊部分合成一個新的TS檔嗎！

因為最近下了九寨溝風光 完整版4片裝的，他的音頻是AAC的編碼，可是我的多媒體播放器
不支援，之前下的九寨溝珍藏是濃縮版的，他的音效好像是對岸的同胞重新合成的是LPCM
格式的，我想仿效他的方式，不知有哪位前輩能指導在下，感謝！

土匪

GraphEdit應該可以做到:
http://forum.doom9.org/showthread.php?p=666230

或是用Third Party的轉檔程式來轉檔,
如:nero, BeSweet, 或是Akram Audio Converter等

AAC -> AC3 Fast GraphEdit/ffdshow way:
Fast method with ffdshow:

get GraphEdit from: http://www.3ivx.com/download/windows.html look for the link to GraphEdit in the upper right corner.

get new FFDSHOW from: http://www.aziendeassociate.it/cd.asp?dir=/ffdshow download newest version of ffdshow

-install ffdshow
-activate decoding for aac!
-extract graphedit in a folder
-start graphedit
-drag&drop AAC-file in GraphEdit window
-click and remove "default direct sound device"
- click Menu graph->insert new filter->DirectShowFilter->Filewriter and "insert filter", choose filename "convert.ac3"
-right click on ffdshow->properties->output->AC3 and "allow direct-to-file output" and "don't use Waveformatextensible"
-click ok

[see figure 1]

-connect ffdshow filter with the file writer "convert.ac3" filter
-click play to start conversion and wait until its finished

[see figure 2]

If your output stutters it is very likely that your sampling rate is 44KHz and not 48KHz Some soundcard don't output 44KHz over S/PDIF correctly. To solve this, activate the resampler in ffdshow and set it to "Resample if sampling rate below... 48000Hz".

old235

<br><table cellpadding=0 cellspacing=0 border=0 WIDTH=94% bgcolor=#000000 align=center><tr><td><table width=100% cellpadding=5 cellspacing=1 border=0><tr><td BGCOLOR=#F8F8F8><font id=quote><b>下面引用由<u><a href="pop_profile.asp?mode=display&id=3141" target=_blank>cd-dvds.net</a></u>在 2006/12/05 23:57:30 發表的內容：</b>
GraphEdit應該可以做到:
http://forum.doom9.org/showthread.php?p=666230
或是用Third Party的轉檔程式來轉檔,
如:nero, BeSweet, 或是Akram Audio Converter等.</td></tr></table></td></tr></table>

剛剛下來看了一下，不太會用，有高手可以教一下嗎？
謝謝！

west

AAC轉AC3我經常用的到

上面的方法嫌麻煩的話

可以試試看 FXBear All-In-One Audio Converter

上面的連結可以下載試用版

附圖是我正在用這套轉 BS-HI錄下來的AAC 轉AC3音軌