![]() If your suggested code-point is already in use, or Apple considers that the suggested value is unsuitable, may be misleading, or is otherwise inappropriate, the authority may suggest an alternative value or refuse the registration, at its sole discretion.". "Please note that Apple Computer owns and defines the QuickTime file format, and Apple Computer makes no promise or undertaking to accept applications, and the definition and use of codes in the QuickTime file format are at Apple's sole discretion. Maybe coz Apple owns MOV and they can't change it as they like without occuring in "Steve's Wrath"? MP4 is based on MOV and Apple own the licenses but for example asking registration for an ISO media code or a QT code is different, the mp4ra says: mp4 is more funkier? and why dont you use. ![]() Anyway at the moment Haali media splitter offers a directshow filter able to mux ac3 in mp4. Where can I find it? I've searched in the download page, but I haven't find it. The mp4 muxer on my site supports mp3, aac and ac3 input. To don't mention the chapters stored in the udta box, of course XD their profiles aren't registered (I mean the brand aren't registred, otherwise they aren't really the brand of a new specification) and the Vobsubs sample entry that they use for the subtitles isn't registered either. But I think that Nero isn't interested in mp4ra registration. This might be not an bad idea for Vobsub too. Just of interest, are there any plans by Nero to register this at or to bring this up at a MPEG meeting? Hopefully their minds will be changed as and when the specifications for DAB 2 (radio) () are sorted. But amplifier manufacturers don't seem very enthusiastic about it. All my audio CD's are backed up to this format. More-over, now neither of the new high-def disc formats include AAC audio within their specifications, there's no urgency for surround sound amplifier manufacturers to include support for AAC decoding in their chip-sets. AVI" or "I think I'll wait for MKV to be supported in stand-alones". And that in order to hear 6Ch AAC audio streams correctly, they'll have to use their players/amplifiers 6Ch analouge connections instead (if indeed they have them, most devices don't), most end-users response is: "no thanks, I'll stick with using. When you try to explain to them that surround sound amplifiers don't actually include AAC decoder chip-sets, only DolbyDigital/AC3 and DTS decoder chip-sets. However, since owning a few MP4 capable hardware devices (two with NeroDigital support), it's become clear to me that the majority of end-users are totally baffeled as to why their surround sound amplifiers can't accuratlely decode the (6Ch AAC) audio element of Recode2 generated streams. Like Bond, I was not keen about the idea of incorporationd AC3 into MP4. splitters will add support for this new addition when it comes out. Hopefully also Haali, MPC's and VLC's etc. And notice that this AC3 option will be available only for the 2 highest Nero Digital AVC-profiles, not for Nero Digital ASP or "lower" AVC-profiles. ) You can always keep interoperability by using AAC if you want, this is just added flexibility and choise for users. Sorry bond but you are wrong, this was not my idea nor my forwarding, but it is a very good idea, since many people want to preserve the original AC3 track of HDTV tv-streams and use AVC (very clear trend out there), don't have to use mkv, and future hardware supporting these specific 2 high profile ND-AVC profiles will play it. Yeah, saving 7 minutes is a good thing for skipping interoperability :pĮdit: JohnV, you shouldnt forward every nonsense request you hear on boards to your developers and bosses Any speed up is a good thing, especially if you want to include multiple audio streams, though our next AAC encoder version should be 20-25% faster. A little extra time means nothing to me to get something done right. That way I could have the best visual quality as well as audio quality for my cherrished anime. So recompressing to somethin like AAC would take a bit more time, but would leave me a ton more room to max out the bitrate on the video(Anime needs all the video bit reate it can get!). ![]() And recompressing at a propper bit rate should incur very little loss. But AC3 at 5:1 has relatively few errors or loss. So by keeping the AC3 yes you would save time. And AAC can beat MP3 at lower bitrates than MP3. MP3 at average bit rates is usually about 10:1. I understand that AC3 whether it is 2 channel 5.1 or 7 it a 5:1 compression ratio. But i do agree that 5channel AC3 on most filmed movies is necessary to downmix and re-compress so AAC is ideal in those cases. This is usually on the case with anime series and movies i cherish. In some cases its not really worth it to me to re-compress the AC3 which is already fairly compressed in some cases to save a little space and loose alot of quality.
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