[Csnd] envelopes from real instruments

[Csnd] envelopes from real instruments

Date	2011-02-14 20:15
From	Ralph Bluecoat
Subject	[Csnd] envelopes from real instruments
	Hello all, I was wondering if it was possible to take a short audio sample of an instrument (in this case, a plucked bass string), and produce an envelope from that that could be applied to something like a filter or amplitude. Many thanks, Ralph

Date	2011-02-14 20:25
From	Aaron Krister Johnson
Subject	Re: [Csnd] envelopes from real instruments
	You could probably use the sample itslef as a reference amplitude along with the 'balance' opcode....other than that, most instruments that decay in the real world do so in an exponential fashion, so mimicing that with expseg(r) or some similar shape often suffices. AKJ On Mon, Feb 14, 2011 at 2:15 PM, Ralph Bluecoat <ralphbluecoat@gmail.com> wrote: Hello all, I was wondering if it was possible to take a short audio sample of an instrument (in this case, a plucked bass string), and produce an envelope from that that could be applied to something like a filter or amplitude. Many thanks, Ralph -- Aaron Krister Johnson http://www.akjmusic.com http://www.untwelve.org

Date	2011-02-14 21:18
From	DavidW
Subject	Re: [Csnd] envelopes from real instruments
	An envelope (overall amplitude profile of a physically resonating object) is lossy of the distinguishing details of the amplitude profiles of individual partials, and it is these that provide much of the perceptual dynamic (liveliness) of a sound. drw On 15/02/2011, at 7:25 AM, Aaron Krister Johnson wrote: You could probably use the sample itslef as a reference amplitude along with the 'balance' opcode....other than that, most instruments that decay in the real world do so in an exponential fashion, so mimicing that with expseg(r) or some similar shape often suffices. AKJ On Mon, Feb 14, 2011 at 2:15 PM, Ralph Bluecoat <ralphbluecoat@gmail.com> wrote: Hello all, I was wondering if it was possible to take a short audio sample of an instrument (in this case, a plucked bass string), and produce an envelope from that that could be applied to something like a filter or amplitude. Many thanks, Ralph -- Aaron Krister Johnson http://www.akjmusic.com http://www.untwelve.org _____________________________________________ Dr David Worrall Adjunct Research Fellow, Australian National University Board Member, International Community for Auditory Display Regional Editor, Organised Sound (CUP) Projects Officer, Music Council of Australia worrall.avatar.com.au sonification.com.au mca.org.au musicforum.org.au

Date	2011-02-15 09:54
From	francesco
Subject	[Csnd] Re: envelopes from real instruments
	Hi Mr. Ralph, You could take a look to follow and follow2 opcodes. These are envelope follower. http://www.csounds.com/manual/html/follow.html http://www.csounds.com/manual/html/follow2.html ciao, francesco.

Date	2011-02-15 16:34
From	Aaron Krister Johnson
Subject	Re: [Csnd] Re: envelopes from real instruments
	Thanks for reminding me about those, Francesco! AKJ On Tue, Feb 15, 2011 at 3:54 AM, francesco <ilterzouomo@fastwebnet.it> wrote: Hi Mr. Ralph, You could take a look to follow and follow2 opcodes. These are envelope follower. http://www.csounds.com/manual/html/follow.html http://www.csounds.com/manual/html/follow2.html ciao, francesco. -- View this message in context: http://csound.1045644.n5.nabble.com/envelopes-from-real-instruments-tp3385015p3385746.html Sent from the Csound - General mailing list archive at Nabble.com. Send bugs reports to the Sourceforge bug tracker https://sourceforge.net/tracker/?group_id=81968&atid=564599 Discussions of bugs and features can be posted here To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound" -- Aaron Krister Johnson http://www.akjmusic.com http://www.untwelve.org