[LAU] mixing advice/assistance needed

[Florian Paul Schmidt]

On 02/14/2013 02:14 PM, Fons Adriaensen wrote:
> On Thu, Feb 14, 2013 at 01:40:23PM +0100, Brendan Jones wrote:
>   
>> Just personal preference, but I think both of these have an
>> unacceptable amount of hissing that is not present in the original.
> The original had most of the signal above 2kHz or so almost gone, so
> this had to be boosted. Tape hiss gets amplified in the same way (this
> was a _casette_ recording). It's probably possible to remove some of
> the hiss using an FFT-based multiband expander.
>
>> Can you explain what you did exactly
> Second order shelf filter, +12 dB or so at 4 kHz and above. There were
> some faint traces of signal around 8 kHz, so a very narrow band around
> that frequency was boosted a few dB more.
>
>

BTW: Do there exist noise removal tools building on the Independent 
Component Analysis or similar approaches? Basically using statistics to 
separate signal and uncorrelated noise.. Any open source tools?

Flo

-- 
Florian Paul Schmidt
http://fps.io