View Full Version : Puzzled question for different Audio format?
yzj_dnv2
27th October 2003, 02:42
These days I tried encoding some VOB to AVI with DIVX,AXVID or WMV9!And I want to seek one balance between quality and size!So I want to used the best video and audio encoder!For video,I chose WMV9VCM!For audio,I had no idea!So I want to consulate you;)I've heard the mp3 format with 128Kbits/s is equal to the CD quality while the wma format with 64Kbits/s is enough,isn't it right?And you could show me some test data for these audio encoder.:cool:If you could offer some test data for different video encoder,that will be better~
Hiro2k
27th October 2003, 03:51
Read the forum rules first
12) How NOT to post on this forum:
5 minutes after your initial post you reply to your own post writing something like "Why is nobody helping me? I'm sure you know the answer". Once somebody replies to your thread but doesn't give you exactly the answer you've been expecting you insult them.
Do not ask "what's best" because this question cannot be answered objectively. Each and everyone has their own view about what's best in a certain area. The best is what works best for you!
Now then, there are many other audio format for DVD backups.
AC3, DTS, AAC, OGG, MP3 CBR, MP3 VBR, WMA, RMA.
Why not just search for a poll on most widely used audio formats? I know of at least 4.
http://forum.doom9.org/showthread.php?s=&threadid=27055
http://forum.doom9.org/showthread.php?s=&threadid=35353
http://forum.doom9.org/showthread.php?s=&threadid=36634
http://forum.doom9.org/showthread.php?s=&threadid=47619
Human_USB
27th October 2003, 04:08
192 MP3 would be closer to CD but 320 is the best MP3 goes. Ogg goes upto 500 and FLAC audio is the best you can get. Flac would be over kill but if you want the best use the AC3s/DTS' ripped right out of the DVD. The best for video would be Divx 5.1.1 or Xvid. I like Xvid over Divx because it's open source and I looks better to me.
yzj_dnv2
27th October 2003, 07:12
Since I didn't have 5.1 channel audio system,AC3 is unnecessary to me!
So I prefer to use VBR-MP3 than to use AC3 etc.Because I want to encode my audio stream at low bitrate,which one is better?Only use VBR-MP3 and wma?And the stream bitrate ranges from 32k to 128K~
I dislike encoding audio with AAC,MPC,OGG format,because I'm not familar to these format!And encoding these format needs additional filters,that's a bit complicated!
I've never heard of FLAC.Maybe that's very strange!If possible,could you tell me something about this format?And give me some links for it~:cool:
Hiro2k
27th October 2003, 14:39
FLAC is a lossless audio format. All the rest like Ogg, AAC, MP3, WMA, are all lossy codecs. That means that they actually lose some of the original sound when they compress the audio. FLAC however uses a different algorithm which compresses the audio, but it sounds identical to the original stream. I don't think any of the current containers support the FLAC codec in them.
You are right about AAC,MPC,OGG in that they require a bit more effort to playback. But that shouldn't bother anyone, what's one more filter to install? All those formats that you just mentioned, except for OGG, can be muxed into an AVI with Alexnoe's AVI-Mux Gui (http://www-user.tu-chemnitz.de/~noe/Video-Zeug/AVIMux%20GUI/index-eng.html).
Ogg however can only be muxed in with the OGM and MKV containers. You can find more information on those in the New A/V Containers forum.
Human_USB
27th October 2003, 16:36
Taking the extra step and using OGG or AAC does pay off. AAC is the newest MP3, it's made by the same guy and it supports 6 channel sound. Ogg is made by an Open Source company Xiph (http://www.vorbis.com/). Ogg also does a lot better in low bitrates then MP3. I can rip a DVD to OGG 0.2 and it sill sounds better then a mp3. Just try new things, it pays off.
yzj_dnv2
29th October 2003, 03:57
Originally posted by Hiro2k
FLAC is a lossless audio format. All the rest like Ogg, AAC, MP3, WMA, are all lossy codecs. That means that they actually lose some of the original sound when they compress the audio. FLAC however uses a different algorithm which compresses the audio, but it sounds identical to the original stream. I don't think any of the current containers support the FLAC codec in them.
Ogg however can only be muxed in with the OGM and MKV containers. You can find more information on those in the New A/V Containers forum.
I wonder if I could mux avi and wma together.Or mixing rmvb and wma is possbile?I heard that GraphEdit could be used!It's a powerful tool for mixing and converting different media source.And I've known something for MKV and OGM.MMG is a MKV container while OGM is a OGM container!If possible,could you tell me the standard process for mixing and converting different media source with GraphEdit?
Thank you very much!:D
Human_USB
29th October 2003, 04:47
I will let Hiro get this one..... let me go find him. BTW are you planning to use these rip outside of Windows?
Hiro2k
29th October 2003, 05:04
Originally posted by yzj_dnv2
I wonder if I could mux avi and wma together.Or mixing rmvb and wma is possbile?I heard that GraphEdit could be used!It's a powerful tool for mixing and converting different media source.And I've known something for MKV and OGM.MMG is a MKV container while OGM is a OGM container!If possible,could you tell me the standard process for mixing and converting different media source with GraphEdit?
Thank you very much!:D
I've never messed with Real Media, but I suppose if it did work in any container, it would be Matroska. You can try Mosus's mkvmerge, it has a nice GUI that might be better than throwing graphedit at you. Also MMG is the GUI for mkvmerge by Mosu, the container is called Matroska.
yzj_dnv2
29th October 2003, 06:10
Originally posted by Human_USB
I will let Hiro get this one..... let me go find him. BTW are you planning to use these rip outside of Windows?
No,I only play my rip in Windows.And I have used MMG before!I can try it;) Thanks a lot!
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