Ok, Iıll come clean. Itıs not from anybody but myself. Iım actually doing
some audio digitization research for something Iım building and I needed
to make sure that the audio being digitized wasnıt being truncated.
Thanks for the bitscope idea. I completely forgot I had a plugin that did
that as itıs something Iıve never had to use until now.
Thanks again.
--
Henry Borchers
Broadcast Media Digitization Librarian
University of Maryland
B0221D McKeldin Library
College Park, MD 20742
(301) 405-0725
On 5/6/14, 9:01 AM, "William Chase" <[log in to unmask]> wrote:
>Hi Henry,
>
>What prompted this concern? Where in your signal path do you think the
>audio is getting truncated to/encoded at 16 bits?
>
>Best regards,
>Will Chase
>
>
>On Mon, May 5, 2014 at 8:26 PM, Tom Fine
><[log in to unmask]>wrote:
>
>> What would be audible about a 16-bit file converted to 24-bit? As long
>>as
>> the source doesn't have a dynamic range over 90dB, why does it matter?
>>Is
>> the concern about post-ADC DSP work?
>>
>> -- Tom Fine
>>
>> ----- Original Message ----- From: "[log in to unmask]" <
>> [log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Monday, May 05, 2014 1:32 PM
>> Subject: [ARSCLIST] Verifying true 24-bit audio
>>
>>
>>
>> Henry Borchers:
>>>
>>> I have some doubts about a file being digitized at true 24-bit.
>>>> The file says 24-bit but I?m not sure how to verify it. Is there
>>>> a way of verifying a file to see if it?s truly 24-bit and not 16-bit
>>>> conversion in a 24-bit file?
>>>>
>>>
>>> Yes, you need to use a bitscope to see which bits toogle or are
>>> stuck with no activity in them.
>>>
>>> I use an ADT, England, Digital line tester where you can see the
>>> status of the AES/EBU user bits and you can also manipulate
>>> those bits any way you wish.
>>>
>>> I have modified it so I can also use it as a bitscope which can be
>>> very useful as in the past there were many pieces of didgital
>>> equipment that claimed to be 24 bits but could be anywhere from
>>> true 24 bits down to 16 bits.
>>>
>>> The Valley Audio 730 Comp/limiter stated 24 bis but was in fact
>>> a 16 bit device only.
>>>
>>> There are many more devices that you can use as a bitscope from
>>> Prism and many manufacturers that sell you software has a bitcope
>>> included.
>>>
>>> If you are handy you can even build your own as is shown here:
>>>
>>> http://www.digido.com/articles-and-demos12/13-bob-
>>> katz/18-digital-detective.html
>>>
>>>
>>> --
>>> Best regards,
>>>
>>> Goran Finnberg
>>> The Mastering Room AB
>>> Goteborg
>>> Sweden
>>>
>>> E-mail: [log in to unmask]
>>>
>>> Learn from the mistakes of others, you can never live long enough to
>>> make them all yourself. - John Luther
>>>
>>> (\__/)
>>> (='.'=)
>>> (")_(") Smurfen:RIP
>>>
>>>
>>>
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