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Posted by Frank on 10/05/22 11:45
On Sun, 9 Apr 2006 11:03:46 -0400, in 'rec.video.desktop',
in article <Re: Ripping audio and video from a DVD...on a Mac>,
Ty Ford <tyreeford@comcast.net> wrote:
>On Fri, 7 Apr 2006 07:33:07 -0400, Frank wrote
>(in article <33ic32hcgr13db6hg39nl2r2gkqje0etrn@4ax.com>):
>
>> 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!
>>
>>
>
>Thanks Frank,
>
>Weirdly, PTLE 7.0 doesn't recognize the file, nor did Sountrack Pro.
>
>I'll keep tinkering.
>
>I was surprised to see a .pcm extension
>
>Regards,
>
>Ty
>
>-- Ty Ford's equipment reviews, audio samples, rates and other audiocentric
>stuff are at www.tyford.com
Okay, and if I can be of any further assistance, please don't hesitate
to ask.
And as I mentioned in my second post, do give Audacity a try.
--
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/
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