From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from out3.smtp.messagingengine.com (out3.smtp.messagingengine.com [66.111.4.27]) by speech.braille.uwo.ca (Postfix) with ESMTP id BB3EC10A70 for ; Mon, 16 Jun 2008 15:44:41 -0400 (EDT) Received: from compute2.internal (compute2.internal [10.202.2.42]) by out1.messagingengine.com (Postfix) with ESMTP id 9D43C11F62F for ; Mon, 16 Jun 2008 15:44:41 -0400 (EDT) Received: from heartbeat2.messagingengine.com ([10.202.2.161]) by compute2.internal (MEProxy); Mon, 16 Jun 2008 15:44:41 -0400 X-Sasl-enc: XjGn29v5tQEpciqUoGiGx7MZG4pLknBwPdfSjk6F1ct9 1213645481 Received: from localhost (24-105-209-113.cm.mhcable.com [24.105.209.113]) by www.fastmail.fm (Postfix) with ESMTPSA id 21C0238CD0 for ; Mon, 16 Jun 2008 15:44:41 -0400 (EDT) Date: Mon, 16 Jun 2008 15:44:40 -0400 From: Chuck Hallenbeck To: "Speakup is a screen review system for Linux." Subject: Re: text console tools for audio processing Message-ID: <20080616194440.GA11074@cq.ftml.net> Mail-Followup-To: "Speakup is a screen review system for Linux." References: <20080616091142.GA12854@cq.ftml.net> <18518.15071.596427.625229@ccs.covici.com> <20080616173227.GD6592@sonata.rednote.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; x-action=pgp-signed Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.18 (2008-05-17) X-BeenThere: speakup@braille.uwo.ca X-Mailman-Version: 2.1.10 Precedence: list Reply-To: "Speakup is a screen review system for Linux." List-Id: "Speakup is a screen review system for Linux." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 16 Jun 2008 19:44:41 -0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi Luke, On Mon, Jun 16, 2008 at 03:32:16PM -0400, luke wrote: > On Tue, 17 Jun 2008, Janina Sajka wrote: > > That will be a very interesting feature for me in particular, although > doing it by percentage instead of by seconds and divisions of seconds, > such as "sox file1.wav file2.wav trim 17:05.5218 2.1143" would be a bit > strange, although I suspect it can work in that mode as well, as he's > probably just invoking sox to do the actual editing. > > Luke You can identify a point in a file either by percentages, or by minutes:seconds. A number without a colon is interpreted as a percent of the total length, a number with a colon is taken as minutes colon seconds, with the seconds part permitting a decimal point. Copy, snipp8ing, killing, and zapping a region of a track is done natively by wedit rather than relying on soc, since it is perfomred on the memory image of the file, not the file itself. Edges produced by those operations are faded sinusoidally over a 100 ms interval. The analogy is a diagonal splice of audio tape, except the slope of the splice is a half cycle of a sine wave instead of linear. HTH Chuck - -- The Moon is Waxing Gibbous (97% of Full) My web site: http://hallenbeck.ftml.net and my cell phone: 1-518-334-9022. -------- "With us nothing has time to gather meaning, and too many things are occurring for even a big heart to hold." - --W. B. Yeats -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEARECAAYFAkhWwqgACgkQ0maTgpPXM9fQ+ACbB1/nour9XCzf7FR9FaJ4fQAC eEIAn3Gqwij2jtKK85C/2278mJQIGivI =nPqr -----END PGP SIGNATURE-----