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- Date: </B></I> Sunday, 03 March 2002 09:15:57 PM</DIV> <DIV dir=ltr style="FONT-SIZE: 11pt" <i><B>To:</B></I> <A href="mailto:microsound@hyperreal.org">microsound</A></DIV> <DIV dir=ltr style="FONT-SIZE: 11pt" <i><B>Subject:</B></I> RE: [microsound] [OT]? Hiss reduction recommendations</DIV></DIV> <DIV> </DIV>I recently had to do some similar cleaning - the waves restoration bundle is<BR>very good - as is the noise reduction tool in CoolEdit Pro. These both<BR>"sample"<BR>the noise (take do an FFT "image" of it") and try and remove it using FFT.<BR>You<BR>can get odd artefacts if you try and remoe too much. Its a pain staking<BR>(and<BR>boring) job.<BR><BR>A good compressor should help with the volume. Noise gates have to be used<BR>with<BR>care on speech - the human mind can edit out a certain level of constant<BR>background noise - gating it constanltly brings the signal back to you<BR>attention.<BR><BR>cheers<BR><BR>mark<BR><BR>-----Original Message-----<BR>From: Bill Jarboe [<A href="mailto:billjarboe@earthlink.net">mailto:billjarboe@earthlink.net</A>]<BR>Sent: 03 March 2002 05:56<BR>To: microsound<BR>Subject: Re: [microsound] [OT]? Hiss reduction recommendations<BR><BR><BR>on 3/02/02 10:56 PM, Michael Bleming at <A href="mailto:mbleming@comcast.net">mbleming@comcast.net</A> wrote:<BR><BR>> Hi I hope this is not too off topic, if it is, please refer me to a list<BR>> better suited to the question...anyway... I have a friend who is working<BR>on a<BR>> documentary to complete his masters requirements...he's ran into a wall in<BR>> regards to the audio quality of some of the interviews. A number of the<BR>> interviews suffer from serious hiss issues coupled with low volume levels.<BR>> What is the best way to reduce this extreme hiss and raise the level of<BR>the<BR>> audio as well? The interviews were one shot deals and cannot be recorded<BR>> again. The poor audio quality sticks out like a sore thumb and he'd like<BR>to<BR>> find a way to clean it up, cheaply if possible. I'm aware of a number of<BR>> restoration programs but I have no experience with them...is there a way<BR>to<BR>> cut the hiss while raising the level that will not cost an arm and a leg?<BR>> Sorry if this is too far off topic and thanks for ANY help you can give.<BR>> Michael<BR>><BR>I don't know what platform your friend is working on. I have found that the<BR>best way to do the hiss removal thing is to find an app. that supports vst<BR>plug ins and then try changing the phase first ( this can cancel hiss in<BR>some cases) with something like imager <<A href="http://sonomatics.com/">http://sonomatics.com/</A>>for mac.<BR>After that try a compressor and a noise gate , maybe in tandem with<BR>selective e.q..<BR><BR>Waves <<A href="http://www.waves.com/">http://www.waves.com/</A>> offers a restoration bundle demo , I haven't<BR>tried it yet myself(could be fun).<BR><BR><BR><BR>Bill<BR><BR><BR>---------------------------------------------------------------------<BR>To unsubscribe, e-mail: <A href="mailto:microsound-unsubscribe@hyperreal.org">microsound-unsubscribe@hyperreal.org</A><BR>For additional commands, e-mail: <A href="mailto:microsound-help@hyperreal.org">microsound-help@hyperreal.org</A><BR>website: <A href="http://www.microsound.org">http://www.microsound.org</A><BR><BR><BR>---------------------------------------------------------------------<BR>To unsubscribe, e-mail: <A href="mailto:microsound-unsubscribe@hyperreal.org">microsound-unsubscribe@hyperreal.org</A><BR>For additional commands, e-mail: <A href="mailto:microsound-help@hyperreal.org">microsound-help@hyperreal.org</A><BR>website: <A href="http://www.microsound.org">http://www.microsound.org</A><BR><BR><BR>.</TD>
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