Subject:Filter (improving sound quality)

Posted by: jgrandon

Date:1/8/2000 12:31:00 PM

I have a sound sample that is a speaking voice from the
early 1900s that has a relatively consistent rumbling (from
the primitive recording device) at about 200Hz. I am having
trouble removing this sound without removing the bass sound
from the recording. What is the best way to clean up a sound
such as this?

Thanks for any help!

Subject:Re: Filter (improving sound quality)

Reply by: arrigo

Date:1/8/2000 5:47:00 PM

James,

Use "NOISE REDUCTION" XPlug in. Make a sample of the noise,
choise the amount of reduction (two pass of 16 dB is better
than a single pass of 32 dB,)and you won't believe the results.

If you don't have it, buy it. (really worth the investment).

Arrigo.
ZANESSI Recording Studios
Mendoza, ARGENTINA.


James Grandon wrote:
>>I have a sound sample that is a speaking voice from the
>>early 1900s that has a relatively consistent rumbling (from
>>the primitive recording device) at about 200Hz. I am having
>>trouble removing this sound without removing the bass sound
>>from the recording. What is the best way to clean up a sound
>>such as this?
>>
>>Thanks for any help!

Subject:Re: Filter (improving sound quality)

Reply by: Distinti

Date:1/8/2000 11:57:00 PM

Arrigo,

Could you please explain more in depth (if you don't mind) as to how
you accomplish cleaning up the background noise.

I understand what you are saying but not sure which procedure you
use. I assume you're referring to the noise print window? Is there
a preset to remove - 16db audio or do you have to set that manually?
Also, when you say "2 pass", do you mean to apply the filter twice?

Thanks!
Dave

Subject:Re: Filter (improving sound quality)

Reply by: arrigo

Date:1/9/2000 2:58:00 PM

I'm sorry I've been too brief.

Sound Forge is maybe the best program for cleaning and cosmetics in a
sound file.

Open the file you intend to fix. Then click Tools. Among other you'll
find three powerful tools: Click Removal, Noise Reduction and Vinyl
Restoration. Choose Noise Reduction, which is the best to remove
rumble, hum, tape hiss, etc.
In the file, select a portion where there is only noise (no speech,
no music), to "GET" a "Print" (a sample) of said noise that will be
use to clean the file.
Use HELP to learn how to set the parameters conveniently, and other
useful advises.

If not enough, please contact me again.

(I'm Italian and live in Argentina, so English is by no means my
language)

Arrigo Zanessi



David Distinti wrote:
>>Arrigo,
>>
>>Could you please explain more in depth (if you don't mind) as to how
>>you accomplish cleaning up the background noise.
>>
>>I understand what you are saying but not sure which procedure you
>>use. I assume you're referring to the noise print window? Is there
>>a preset to remove - 16db audio or do you have to set that manually?

>>Also, when you say "2 pass", do you mean to apply the filter twice?
>>
>>Thanks!
>>Dave
>>
>>

Subject:Re: Filter (improving sound quality)

Reply by: Distinti

Date:1/9/2000 9:31:00 PM

Arrigo,

Everything worked out great. Thanks for the tip!

I had to play around with various -db settings until I found a point
in which the background noise level was surpressed enough without
sacrificing the actor's dialouge.

Thanks!
Dave

Subject:Re: Filter (improving sound quality)

Reply by: jgrandon

Date:1/17/2000 9:32:00 PM

I'm just dabbling here with three small old audio files. I can't shell
out $300-400 just for this. Anyone out there feel like doing some
charity work?

Subject:Re: Filter (improving sound quality)

Reply by: orsino

Date:1/17/2000 10:13:00 PM

James Grandon wrote:
>>I'm just dabbling here with three small old audio files. I can't
shell
>>out $300-400 just for this. Anyone out there feel like doing some
>>charity work?


Hello James

could you say more precisely what you mean by charity work or
what you want (to do)?

Subject:Re: Filter (improving sound quality)

Reply by: jgrandon

Date:1/27/2000 10:29:00 PM

I can put the sound files up on a site somewhere and let anyone who's
willing to try to imporove them have a try at it. They are filled with
extra noise that could perhaps be easily stripped out with a noise
reduction filter.
I'd love to see what's possible with these. One's from the 1890s.