|
|
Posted by Frank on 10/05/11 11:44
On Fri, 07 Apr 2006 11:33:07 GMT, in 'rec.video.desktop',
in article <Re: Ripping audio and video from a DVD...on a Mac>,
Frank <frank@nojunkmail.humanvalues.net> wrote:
>On Thu, 6 Apr 2006 17:06:14 -0400, in 'rec.video.desktop',
>in article <Ripping audio and video from a DVD...on a Mac>,
>Ty Ford <tyreeford@comcast.net> wrote:
>
>>OK, I'm not pirating anything. My client has asked me to clean up some bad
>>audio from a VHS videotape.
>>
>>She digitized it as a regular old DVD with Audio_TS and Video_TS folders.
>>There's nothing in the Audio folder and six files in the Video Folder; a
>>Video_TS BUP and IFO, and four VTS files -- BUP, IFO, and two VOBs.
>>
>>Mac The Ripper gives me a 31 MB .m2V file and 8 MB 2ch.pcm file on one pass.
>> I know the audio is the PCM, but no Mac app I have seems to want to open it.
>>Quicktime Pro gives me a -2048 error. I'm Running QT 7.04 Pro.
>>
>>I think there are six separate chapters on this particular disc.
>>
>>Thanks,
>>
>>Ty
>>
>>
>>
>>-- Ty Ford's equipment reviews, audio samples, rates and other audiocentric
>>stuff are at www.tyford.com
>
>
>
>Hello Ty:
>
>If we were neighbors, I would do this for you in Adobe Audition, but
>since we're not, you'll simply need to get your hands on a decent
>Mac-compatable audio editing program such as one of the Bias Peak
>products, or some other program which handles raw PCM files. After
>you've successfully opened the file in a program such as this, you can
>immediately save it out as an .aiff file, as a .wav file, or even as
>an audio-only .mov file for subsequent use in other applications.
>
>Peak comes in three flavors these days: Peak LE, Peak Pro, and Peak
>Pro XT. Even Peak LE, the lowest priced of the three versions, should
>be able to do the job, although it's limited to 24/96 while the two
>higher-end products support bit depths up to 32 and have no sampling
>rate restrictions.
>
>When you attempt to open the file, you'll have to inform the program
>as to the bit depth and sampling rate of the datastream. For the
>DVD-Video disc that you've described above, it's most likely 16/48,
>but you'll know immediately just by looking at the waveform display --
>or by playing the file. It will sound like hash if you've guessed
>incorrectly. Just keep trying different combinations of bit depth and
>sampling rate until you hit upon the right one.
>
>You'll also need to specify the number of channels, most likely two in
>this case, whether the data is signed or unsigned, and whether the
>samples are stored in Big Endian (Motorola) or Little Endian (Intel)
>format.
>
>Good luck!
In my case, posting (or doing anything, actually) on just one cup of
coffee (my primary fuel source) isn't necessarily a good idea...
I forgot to give you a link for Bias Peak. It's as follows.
http://www.bias-inc.com/
Also, and especially if you don't wish to spend any money on this
particular project, you might want to download and install the Mac
version of the open source program Audacity. The specs state that it
supports raw PCM files: "Open raw (headerless) audio files using the
'Import Raw' command."
http://audacity.sourceforge.net/
Regards,
--
Frank, Independent Consultant, New York, NY
[Please remove 'nojunkmail.' from address to reply via e-mail.]
Read Frank's thoughts on HDV at http://www.humanvalues.net/hdv/
Navigation:
[Reply to this message]
|