[[email protected]]

I want to take a clip and silence the music in it and bring forth the
background sound (the talking, walking, etc...). Like say if there
was a theme playing, and a bunch of people were getting on a bus, I
want the sounds with the bus and remove the music to as low as
possible.

-----------------
Another thing, I need help with Normalizing. What I want is to take
quiet parts of the clip and raise them very high. But I need to also
"keep" the loud sounds the same volume in the clip. When I normalize,
it uses dynamic compression to take care of the sounds that get too
loud.

For example, lets say there's a movie where people are firing
gunshots. There is talking amongst the people firing. If I apply a
normalize, I can bring forth the voices fine, but then the gunshots
would be muffled because of dynamic compression.

I want to keep the gunshots at the same volume and bring forth the
quiet background noise.

Thanks guys!

[Nil]

On 07 Oct 2007, wrote in rec.audio.pro:

I want to take a clip and silence the music in it and bring forth
the background sound (the talking, walking, etc...). Like say if
there was a theme playing, and a bunch of people were getting on a
bus, I want the sounds with the bus and remove the music to as low
as possible.

This isn't possible. You may get some suggestions on minimizing certain
aspects of such a recording, but you won't be able to totally eliminate
them.

Another thing, I need help with Normalizing. What I want is to
take quiet parts of the clip and raise them very high. But I need
to also "keep" the loud sounds the same volume in the clip. When
I normalize, it uses dynamic compression to take care of the
sounds that get too loud.

You are doing something wrong. Normalizing simply raised the volume of
the entire recording so that the peaks are at a specified volume. There
is no compression used.

For example, lets say there's a movie where people are firing
gunshots. There is talking amongst the people firing. If I apply
a normalize, I can bring forth the voices fine, but then the
gunshots would be muffled because of dynamic compression.

I want to keep the gunshots at the same volume and bring forth the
quiet background noise.

Try limiting - that will reduce dynamic range by cutting off the peaks
so that their maximum is closer to the quiet parts. This might sound
less unnatural than the compression you're using.

[[email protected]]

Do you know any techniques for lowering the music?

Thanks.

[Nil]

On 09 Oct 2007, wrote in rec.audio.pro:

Do you know any techniques for lowering the music?

I'm not sure I know what you mean or what you're trying to do, but if
you are talking about a situation where there is both music and speech
going on at the same time and you want to make the speech louder than
the music... I doubt it. I mean, if it's like the movie "The
Conversation" where you are just trying to make out what's said, you
could probably use EQ to boost certain frequencies to make the voice
stand out better. Or if you have two or more sources you might be able
to phase-align them to eliminate some of the background sound, which I
think is how they did it there. But the result wouldn't be pleasant to
listen to.

Otherwise, I don't believe there is any easy way for a machine to
distinguish between music, noise, and speech once it's all mixed
together.

[[email protected]]

In this case, it's not talking. It's more like background noise like
walking, driving, everyday noises.

[Jack]

wrote:
In this case, it's not talking. It's more like background noise like
walking, driving, everyday noises.

fuhgedaboutit
Can't be done (although you may want to check with the CIA or NSA - if
it can be done, those people will know)

--
Jack