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Hi Rosie

Good point, but the files were under 2GB each. I do have RF64 support 
activated in Wavelab preferences none the less, many of the projects I 
work on have file sizes well beyond the 2GB mark. I think this was one 
of those quirky things that happened when the computer locked up during 
the middle of the batch rendering process. About 40 files had been 
processed and these were the remaining few in the cue. If I had backed 
up prior to starting the rendering, this would not have been an issue.

Kind Regards,

John Schroth

MTS


On 1/27/2019 1:22 PM, Rosalinda G. Rowe wrote:
> Hi John,
>
> I've been following this thread because it's reminiscent of an issue I had
> years ago with large .wav files. Something to consider: a standard .wav
> file has a size limit of 2gb, and BWF files have a standard file size of
> 4gb. With anything larger than 4gb, the file structure changes to RF64
> <https://en.wikipedia.org/wiki/RF64>. You didn't mention the file size
> explicitly, but if you are missing metadata, this might be the cause. Have
> you activated the RF64 support in WaveLab's audio files preferences?
> Cheers,
> Rosie Rowe
> ISU
> AV/Film Preservation Specialist
>
> On Sun, Jan 27, 2019 at 10:52 AM Mickey Clark <[log in to unmask]> wrote:
>
>> John-Glad to help-Mickey
>>
>> -----Original Message-----
>> From: John Schroth
>> Sent: Saturday, January 26, 2019 6:58 PM
>> To: [log in to unmask]
>> Subject: Re: [ARSCLIST] corrupted WAV files
>>
>> Hi Gary and Mickey
>>
>> I tried copy and paste changing file name of the copy. No luck there.
>>
>> I tried upsample render then downsample render the upsampled file in
>> Wavelab. No luck. I only changed the sample rate not the bit rate and
>> only took it up from 96K to 128K. Going higher for both bit and sample
>> rates on the whole file, then back down again would take too much time
>> to process for this test.
>>
>> I tied saving off to a RAW file, then open (import special audio file)
>> using Wavelab. No luck there. But when I tried importing the corrupted
>> WAV file in the same way, then saved that file off to a new version,
>> that seemed to work. Both corrupted file and new version are the same size.
>>
>> As this is a consumer project transferring a collection of cassette
>> tapes that are not an archival level job, I'm very happy with this fix.
>> I was in a hurry to get home to dinner Friday night and should have
>> backed up the days work before I started the batch render process.
>> Lesson learned. Thanks to you both for your input and leading me to a fix!!
>>
>> Kind Regards,
>>
>> John Schroth
>>
>> MTS
>>
>>
>>
>>
>> On 1/26/2019 7:46 PM, John Schroth wrote:
>>> Both good suggestions.
>>>
>>> The files were ingested at 96K, 24Bit. So I have some headroom.
>>>
>>> I'll try both ideas and report back.
>>>
>>> Thank you
>>>
>>> Kind Regards,
>>>
>>> John Schroth
>>>
>>> MTS
>>>
>>>
>>> On 1/26/2019 7:38 PM, Mickey Clark wrote:
>>>> John- is there any higher sample rate ? - you could try resampling to
>>>> a higher rate then resample back. but you're probably already maxed
>>>> out for that
>>>>
>>>> another way is saving the file as .raw format then when you open it,
>>>> in a .wav studio, the computer should call for the sample information
>>>> from you. you enter that then save it with the formatting - -Mickey
>>>>
>>>> -----Original Message----- From: John Schroth
>>>> Sent: Saturday, January 26, 2019 3:44 PM
>>>> To: [log in to unmask]
>>>> Subject: [ARSCLIST] corrupted WAV files
>>>>
>>>> Hoping to get some input from the group.
>>>>
>>>> I had a bunch of high res WAV files that I set up for a batch conversion
>>>> in Wavelab over the weekend. I went into the office several hours ago to
>>>> find that the computer had a hickup and tried to shut down. Any original
>>>> high-res WAV file that was still in the cue for render (or being
>>>> rendered at the time, I don't know which) has now become corrupt.
>>>>
>>>> They open and play in Wavelab, you can see the waveform and it looks to
>>>> be without issue. If you look at them in a folder viewed with the
>>>> details on (PC Windows 7) , there's a file size but no length associated
>>>> with the corrupted files. They will not play in Windows media player
>>>> although other files with the same resolution will.
>>>>
>>>> I can save the files off as version with a different file name but the
>>>> resultant file copy still has no length and has the same issues playing
>>>> in Media Player. I've also tried making some slight audio modifications
>>>> to the file while in Wavelab and rendering out the changes and saving
>>>> off the new version. Still same issues.
>>>>
>>>> Has anyone experience this file corruption issue and did you find a
>>>> workaround?
>>>>
>>>> Kind Regards,
>>>> John Schroth
>>>> MTS
>>>> ---
>>>> This email has been checked for viruses by AVG.
>>>> https://www.avg.com
>>>>
>>>>
>> --
>> Media Transfer Service, LLC
>> High Quality Conversion Of:
>> Video - Audio - Motion Picture - Still Image
>> Phone: 585-248-4908
>> Web: www.mediatransferservice.com
>> Find out what's new at MTS:
>> http://www.mediatransferservice.com/whats%20new.htm
>>

-- 
Media Transfer Service, LLC
High Quality Conversion Of:
Video - Audio - Motion Picture - Still Image
Phone: 585-248-4908
Web: www.mediatransferservice.com
Find out what's new at MTS:
http://www.mediatransferservice.com/whats%20new.htm