andy1962 07.10.2006 18:35 |
if i extract audio from dvd or video to wav then flac is that classed as true flac or not ?????????if not what sort of files are they classed as??? thanks for any help on this matter |
Jay Mantis 07.10.2006 19:21 |
If you extract audio from a DVD or video file then it's definitely not lossless! The audio on the DVD or video file is most likely compressed. Only straight copy's from the original recording equipment can be identified as being real lossless audio. |
Wilki Amieva 07.10.2006 22:35 |
If it is a DVD and the audio is in PCM, go ahead! If it is not a DVD or if it is a DVD but with the audio in Dolby Digital or MPEG, then it won't be considered lossless. |
The Real Wizard 07.10.2006 23:12 |
Agreed. It depends on how well the DVD was created in the first place. |
Royal Blue 07.10.2006 23:47 |
What about if you extract flac to wav, and then back to flac again. Is there any loss in quality? |
The Real Wizard 08.10.2006 01:07 |
Royal Blue wrote: What about if you extract flac to wav, and then back to flac again. Is there any loss in quality?Not at all. It's the exact same as zipping, unzipping, and zipping again with WinZip/WinRar. You're just compressing the file... you're not changing its contents at all. |
Deacon Fan 08.10.2006 03:22 |
Just indicate it in the details. It's still better to have Dolby Digital to wav and then flac rather than compressing it yet again. The only thing worse than compression is double compression :) |
928 08.10.2006 06:13 |
Bubbles! wrote: Just indicate it in the details. It's still better to have Dolby Digital to wav and then flac rather than compressing it yet again. The only thing worse than compression is double compression :)Dolby Digital is AC3 audio which in itself is lossy. So on de-compressing an AC3 file > wav ,it will just be a bloated AC3 as you will never get back what was lost from the conversion from wav>AC3(Dolby) ..but it's better than Mp2 for an up side. So PCM audio is what you want from DVD's.Anything else is deemed as lossy and de-compressing those files ,as with mp3 on your avi files is lossy. Basically ,you dont make lossless just from changing the .ext.It has to be lossless from the start. |
andy1962 08.10.2006 07:50 |
i have just extracted audio from a dvd and this is what i have ended up with does this look right type:wave sound bit rate:1536 kbps i have not done it to flac yet.any help? |
tilomagnet 08.10.2006 08:16 |
Why do you want to rip the audio track from a dvd and share it? That's almost as pointless as demuxing the vob files and sharing the silent video stream without the audio. |
Deacon Fan 08.10.2006 09:51 |
928 wrote:All I'm saying is it's still better to preserve whatever audio it is in a higher format to avoid any further compression, and indicate where it originates so as not to decieve people.Bubbles! wrote: Just indicate it in the details. It's still better to have Dolby Digital to wav and then flac rather than compressing it yet again. The only thing worse than compression is double compression :)Dolby Digital is AC3 audio which in itself is lossy. So on de-compressing an AC3 file > wav ,it will just be a bloated AC3 as you will never get back what was lost from the conversion from wav>AC3(Dolby) ..but it's better than Mp2 for an up side. So PCM audio is what you want from DVD's.Anything else is deemed as lossy and de-compressing those files ,as with mp3 on your avi files is lossy. Basically ,you dont make lossless just from changing the .ext.It has to be lossless from the start. But a direct demux and posting the .ac3 file would probably make the most sense, however a lot of (downloading) folks wouldn't know what to do with such a file. I was just trying to say not to turn it into an mp3 after it's been compressed already. If he happens to have some rare audio that was unfortunately saved as Dobly Digital or something, wav/flac is still the best way to share it without losing anymore quality. |
928 08.10.2006 10:03 |
Andy,leave the audio from DVD's until you get a little bit more into it. I say this because audio from a DVD is at a rate of 48.000 and CD's are 44.100. What you have will not play in a standard CD player but will in a DVD player. So you may as well of just kept it all together as one...if you get what i'm saying. Resampling down to 44.100 would mean re-encoding..therefore making it lossy. Hope that helps you a bit. |
Royal Blue 08.10.2006 17:29 |
"Not at all. It's the exact same as zipping, unzipping, and zipping again with WinZip/WinRar. You're just compressing the file... you're not changing its contents at all." OK thanks. :) |
pow wow 11.10.2006 17:30 |
Now there's a lull in the FLAC attack I'm burning the downloads to disk. I'm backing up the raw data on to DVD for archiving and making audio CD's for my stereo. I used Nero to create an audio CD and ticked the "No pause between tracks" button. It's also set to "Disk-at-once". I'm still finding I'm getting a mini pause between tracks. Is this the norm? How do I make it seamless ala Wembley '86? What do other people use to play as audio and archive? Thanks in advance. Ste |
habalushy 11.10.2006 19:13 |
.ac3 would be the best. but i think that you should see the sample rate first and determine from there. and the point of having just audio from a dvd is so you can put it on cd and play it in your car... and it is pointless to have an audioless VOB |
The Real Wizard 11.10.2006 23:03 |
pow wow wrote: I used Nero to create an audio CD and ticked the "No pause between tracks" button. It's also set to "Disk-at-once". I'm still finding I'm getting a mini pause between tracks. Is this the norm? How do I make it seamless ala Wembley '86?I really have no clue what the problem is! They should be seamless. |
928 12.10.2006 03:37 |
pow wow wrote: I used Nero to create an audio CD and ticked the "No pause between tracks" button. It's also set to "Disk-at-once". I'm still finding I'm getting a mini pause between tracks. Is this the norm? How do I make it seamless ala Wembley '86?You are doing exactly what you should do. I had this problem a few years back.I spent forever searching google and looking in forums for people with the same problem and seeing what they did to fix it. Anyway ,by chance,i took a few of the "slight gap" CD's to a party one night and they got played eventually. I waited to see what would happen in the room when this sudden dead air hit...lol. It played seamlessly.Couldnt believe it. Turned out that although my player could play CD-r's...it wasnt all that clever a player.You may need to upgrade your standalone system. Play the burnt disc in a few other "newer CD/DVD players" ..see what happens. |
pow wow 12.10.2006 03:40 |
Sir GH<br><h6>ah yeah</h6> wrote:I've searched around and it does seem to be a fairly common problem. I'll keep experimenting. Thanks for getting back to me.pow wow wrote: I used Nero to create an audio CD and ticked the "No pause between tracks" button. It's also set to "Disk-at-once". I'm still finding I'm getting a mini pause between tracks. Is this the norm? How do I make it seamless ala Wembley '86?I really have no clue what the problem is! They should be seamless. Oh and you'll be pleased to know that I'll be having an MP3 bonfire of all my old recordings that have been replaced with better records from yourself and others :-) |
The Real Wizard 12.10.2006 04:19 |
pow wow wrote: Oh and you'll be pleased to know that I'll be having an MP3 bonfire of all my old recordings that have been replaced with better records from yourself and others :-)Hehehe... But honestly, save your old copies. You never know when you might need to reference an old version! |
pow wow 12.10.2006 04:59 |
Sir GH<br><h6>ah yeah</h6> wrote:Yeah just a metaphor really - they'll be archived somewhere. I'm just happy I bought a DJ box for all the CD's & DVD's. In the meantime I'm hoping for a spare week were I can actually sit down and enjoy listening to what I've got!!pow wow wrote: Oh and you'll be pleased to know that I'll be having an MP3 bonfire of all my old recordings that have been replaced with better records from yourself and others :-)Hehehe... But honestly, save your old copies. You never know when you might need to reference an old version! |
Diane24 12.10.2006 06:18 |
Anyone can name me a free extract program, where I can create wav files? |
pow wow 12.10.2006 08:07 |
Sir GH or is it Bob? Anyway. What do you use to play, record, convert FLACS? What version of Winamp & Nero? Any pluggins. I've looked everywhere and tried all kinds and I'm running out of blank CD's. Cheers Ste Just an update. I tried one of your recordings and you're right it copied seamless. The reason I'm getting slight gaps in other peoples is the orignal file has gaps................That's what other forums seem to think anyway. |
The Real Wizard 12.10.2006 14:52 |
pow wow wrote: Sir GH or is it Bob?Either/or... Sir GH is an alias that just kind of happened! But when people combine them and call me Sir Bob, that's the best of both worlds! ;) Diane24 wrote: Anyone can name me a free extract program, where I can create wav files?Get the FLAC plugin for WinAmp. After you've got that, you can set WinAmp's preferences to write to WAV instead of playing the file... and it's very quick. |
MDNA 13.10.2006 06:41 |
The best one available is EAC or Exact Audio Copy. It not only extracts the audio into WAV but makes sure there are no errors during the process. Just rum a google search for it. |