FPGA Central

This morning my Sunday school teacher used a video which had a number of
technical problems. The most critical was its sound quality.

The event was in a LARGE church auditorium, which at the beginning was
poorly miked. The echoes resembled a drill hall. I suspect there were
initially extraneous live mikes. Later there were fewer, but prominent,
echoes.

I'm told that the original recording was by a personal video camera
which recoded in PAL format. That later was transferred to a NTSC format
DVD. I'll put in a personal CAVEAT. Because of where the original
recording took place, I'm wondering if the source might not have been
"NTSC color" which was converted to "PAL colour" which then got
converted to "NTSC B&W" [original location USA, my Sunday school teacher
a British missionary]

Now for the "good news" [pun not intended, but wonder how many will
notice it]

Although I suspect that there were as many as three mikes used, after
the first few minutes only one seems to have been live at one time.

QUESTIONS:
1. Practicality of cleaning up audio *CHEAPLY*?
2. The video image has gone thru an unknown number of conversions.
Result resembles contrast too high with addition of some "blooming".
Is there any reasonable way to clean up?

>
> QUESTIONS:
> 1. Practicality of cleaning up audio *CHEAPLY*?
> 2. The video image has gone thru an unknown number of conversions.
> Result resembles contrast too high with addition of some "blooming".
> Is there any reasonable way to clean up?

Re the audio, I'd ask over at rec.audio.pro.

You could run it through a dynamic range expander which magnifies the
volume differences between loud and soft sounds, this sometimes brings
the foreground out from the echo, but it has to be adjusted carefully.
And it won't make a gem from a t**d, you may get a small improvmennt if
you are lucky.


The video can be cleaned up with a "proc amp" processing amplifer that
can be used to set the various video levels as needed.

I don't have any idea how much this would cost for a production house
to do for you.

Mark

Mark wrote:

>
>>QUESTIONS:
>>1. Practicality of cleaning up audio *CHEAPLY*?
>>2. The video image has gone thru an unknown number of conversions.
>> Result resembles contrast too high with addition of some "blooming".
>> Is there any reasonable way to clean up?
>
>
> Re the audio, I'd ask over at rec.audio.pro.
>
> You could run it through a dynamic range expander which magnifies the
> volume differences between loud and soft sounds, this sometimes brings
> the foreground out from the echo, but it has to be adjusted carefully.
> And it won't make a gem from a t**d, you may get a small improvmennt if
> you are lucky.
>
>
> The video can be cleaned up with a "proc amp" processing amplifer that
> can be used to set the various video levels as needed.
>
> I don't have any idea how much this would cost for a production house
> to do for you.
>

I hope that comment applies only to "video cleanup" as it implies
significant dollars and that be "definition" stretches the concept of
"practical" [which might be translated *CHEAP* ;]

I'll post the audio question to rec.audio.pro .
Thank you
I suspected the answer would be "NO" given constraints I'm aware of

> Mark
>

Richard Owlett wrote:

> Mark wrote:
>
>>
>>> QUESTIONS:
>>> 1. Practicality of cleaning up audio *CHEAPLY*?
>>> 2. The video image has gone thru an unknown number of conversions.
>>> Result resembles contrast too high with addition of some "blooming".
>>> Is there any reasonable way to clean up?
>>
>>
>>
>> Re the audio, I'd ask over at rec.audio.pro.
>>
>> You could run it through a dynamic range expander which magnifies the
>> volume differences between loud and soft sounds, this sometimes brings
>> the foreground out from the echo, but it has to be adjusted carefully.
>> And it won't make a gem from a t**d, you may get a small improvmennt if
>> you are lucky.
>>
>>
>> The video can be cleaned up with a "proc amp" processing amplifer that
>> can be used to set the various video levels as needed.
>>
>> I don't have any idea how much this would cost for a production house
>> to do for you.
>>
>
> I hope that comment applies only to "video cleanup" as it implies
> significant dollars and that be "definition" stretches the concept of
> "practical" [which might be translated *CHEAP* ;]
>
> I'll post the audio question to rec.audio.pro .
> Thank you
> I suspected the answer would be "NO" given constraints I'm aware of
>
>> Mark
>>

The consensus of rec.audio.pro was "lost cause"
However, I don't feel to bad about asking. Someone with much better
credentials than I, just asked a very similar question -- got similar
negative answer.

Thank you.