Nathan Hevenstone
2009-Oct-06 04:50 UTC
[Flac] 1.43 GB FLAC with 8-Hour Audio Inside... Decoding?
Ok, so here's the deal... I've been having a lot of trouble sleeping, so I've done some research and discovered this program called "Hemi-Sync". I decided to torrent it from the Pirate Bay to try it out before spending my money. What I torrented worked incredibly, so bought it, then torrented another Hemi-Sync program: Lucid Dreaming. It's a DVD-Audio program. What I torrented came with 4 tracks. The first three tracks are 90 minutes each. The 4th track is 8 hours long. It is this 4th track I'm having trouble with. The first 3 files decoded from FLAC to 48 kHZ 16 bits Stereo (1536 kbps) WAV without a problem. The 4th one, however, simply will not decode. I have used both Trader's Little Helper and FLAC Frontend. I have torrented NCH Switch Sound File Converter, and nothing happened there (it decoded the file, but in two second, and the 1.43 GB FLAC file became a 2.76 KB WAV file). I'm trying Audacity now, but I have mostly doubts... and I'll let y'all know if it works. Please help... As far as Audacity, it is saving it, but it won't be saved in it's original format... it'll be saved compressed to CD-Audio 44.1 kHZ. i'd rather it be saved at 48 kHZ like the other files... -- "Shit happens. Sometimes, you have to wipe and flush." -My Dad -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/flac/attachments/20091006/d744e719/attachment.htm
Nathan Hevenstone
2009-Oct-06 05:25 UTC
[Flac] 1.43 GB FLAC with 8-Hour Audio Inside... Decoding?
Audacity results: It actually did save the file correctly, and the extracted WAV itself is 5.14 GBs! Problem is, Windows Media Player says the track is only 1 hour and 47 minutes long, which is incorrect (as I said before, it's an 8-hour track, meant for 8-hours of sleep)... So I played it in Quicktime, iTunes, and Nero Player just to be sure. Both QuickTime and iTunes only played 1 hour and 47 minutes. Nero, on the other hand, only showed 1 hour and 47 minutes, but when it got to the end of that, it kept playing. I am so confused, and I really need help. How do I decode this extra-large FLAC file correctly so I can burn this series to a DVD-9 and be done with it? On Tue, Oct 6, 2009 at 00:50, Nathan Hevenstone <jimmyrrpage at gmail.com>wrote:> Ok, so here's the deal... > > I've been having a lot of trouble sleeping, so I've done some research and > discovered this program called "Hemi-Sync". I decided to torrent it from > the Pirate Bay to try it out before spending my money. What I torrented > worked incredibly, so bought it, then torrented another Hemi-Sync program: > Lucid Dreaming. It's a DVD-Audio program. > > What I torrented came with 4 tracks. The first three tracks are 90 minutes > each. The 4th track is 8 hours long. It is this 4th track I'm having > trouble with. > > The first 3 files decoded from FLAC to 48 kHZ 16 bits Stereo (1536 kbps) > WAV without a problem. The 4th one, however, simply will not decode. I > have used both Trader's Little Helper and FLAC Frontend. I have torrented > NCH Switch Sound File Converter, and nothing happened there (it decoded the > file, but in two second, and the 1.43 GB FLAC file became a 2.76 KB WAV > file). I'm trying Audacity now, but I have mostly doubts... and I'll let > y'all know if it works. > > Please help... > > > > As far as Audacity, it is saving it, but it won't be saved in it's original > format... it'll be saved compressed to CD-Audio 44.1 kHZ. i'd rather it be > saved at 48 kHZ like the other files... >-- "Shit happens. Sometimes, you have to wipe and flush." -My Dad -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/flac/attachments/20091006/93a59616/attachment.htm
Brian Willoughby
2009-Oct-06 05:54 UTC
[Flac] 1.43 GB FLAC with 8-Hour Audio Inside... Decoding?
You're running into the limits of other audio file formats. AIFF and WAV both have limits. Those two file formats absolutely cannot go beyond 4 GB because there are only 32-bit values for the lengths and sizes. In addition, due to the fact that many operating systems default to signed numbers for 32-bit values, the more typical limitation is 2 GB, since negative sizes are meaningless. There are operating system API which can handle the full unsigned 32-bit size and go all the way to 4 GB, but those are rare, and not many programs are written to use them. For maximum compatibility, many programs refuse to go beyond 2 GB even thought they might be able to squeeze 4 GB into a file. What this all means is that stereo 16-bit 48 kHz audio has a maximum time limit of just over 3 hours (6 hours if you're lucky) when using AIFF or WAV. There are a few solutions. 1) You could find a native FLAC player, and just listen to the 8-hour FLAC without converting. 2) You could use the --skip= and --until= parameters of the command- line flac to extract 3-hour segments that you can piece together later to make the full 8-hour piece. You could use something like Logic to concatenate the AIFF (or WAV) files. In other words, you'd have multiple files, each with a different part. I'm not quite sure exactly what parameters you'd need to use to make sure that the first sample of the second file is immediately after the last sample of the first file, etc. But I do know that Logic will piece together multiple files like this without a glitch. 3) You could wait for someone to write a direct FLAC to CAF extraction utility, because CAF does not have the 4 GB or 2 GB limit, and thus a single CAF file could hold the entire uncompressed 8-hour 24/48 stereo audio. Obviously, this isn't the most practical option for you now, but I point it out because it would be a great tool to have for exactly your situation. P.S. I feel your pain, because I have a portable recorder which streams directly to FLAC, and I have sometimes made recordings that are too long to fit into AIFF or WAV! I had to learn these tricks in order to master the recordings into other formats, since listening to the raw FLAC is not optimal if you want processed audio. Brian Willoughby Sound Consulting On Oct 5, 2009, at 22:25, Nathan Hevenstone wrote:> Audacity results: > > It actually did save the file correctly, and the extracted WAV > itself is 5.14 GBs! Problem is, Windows Media Player says the > track is only 1 hour and 47 minutes long, which is incorrect (as I > said before, it's an 8-hour track, meant for 8-hours of sleep)... > > So I played it in Quicktime, iTunes, and Nero Player just to be > sure. Both QuickTime and iTunes only played 1 hour and 47 > minutes. Nero, on the other hand, only showed 1 hour and 47 > minutes, but when it got to the end of that, it kept playing. > > I am so confused, and I really need help. How do I decode this > extra-large FLAC file correctly so I can burn this series to a > DVD-9 and be done with it? > > On Tue, Oct 6, 2009 at 00:50, Nathan Hevenstone > <jimmyrrpage at gmail.com> wrote: >> Ok, so here's the deal... >> >> I've been having a lot of trouble sleeping, so I've done some >> research and discovered this program called "Hemi-Sync". I >> decided to torrent it from the Pirate Bay to try it out before >> spending my money. What I torrented worked incredibly, so bought >> it, then torrented another Hemi-Sync program: Lucid Dreaming. >> It's a DVD-Audio program. >> >> What I torrented came with 4 tracks. The first three tracks are >> 90 minutes each. The 4th track is 8 hours long. It is this 4th >> track I'm having trouble with. >> >> The first 3 files decoded from FLAC to 48 kHZ 16 bits Stereo (1536 >> kbps) WAV without a problem. The 4th one, however, simply will >> not decode. I have used both Trader's Little Helper and FLAC >> Frontend. I have torrented NCH Switch Sound File Converter, and >> nothing happened there (it decoded the file, but in two second, >> and the 1.43 GB FLAC file became a 2.76 KB WAV file). I'm trying >> Audacity now, but I have mostly doubts... and I'll let y'all know >> if it works.