Re: [music-dsp] A theory of optimal splicing of audio in the time domain.

2011-07-14 Thread robert bristow-johnson
On Jul 13, 2011, at 9:29 AM, Olli Niemitalo wrote: On Sat, Jul 9, 2011 at 10:53 PM, robert bristow-johnson r...@audioimagination.com wrote: On Dec 7, 2010, at 5:27 AM, Olli Niemitalo wrote: [I] chose that the ratio a(t)/a(-t) [...] should be preserved by preserved, do you mean constant

Re: [music-dsp] A theory of optimal splicing of audio in the time domain.

2011-07-14 Thread Olli Niemitalo
On Thu, Jul 14, 2011 at 9:22 PM, robert bristow-johnson r...@audioimagination.com wrote:      g(t)  =  1/sqrt( (1+r)/2 + 2*(1-r)*(p(t))^2 ) might this result match what you have? Yes! I only derived the formula for the linear ramp, p(t) = t/2, because one can get the other shapes by warping

Re: [music-dsp] A theory of optimal splicing of audio in the time domain.

2011-07-14 Thread robert bristow-johnson
On Jul 14, 2011, at 5:36 PM, Olli Niemitalo wrote: On Thu, Jul 14, 2011 at 9:22 PM, robert bristow-johnson r...@audioimagination.com wrote: g(t) = 1/sqrt( (1+r)/2 + 2*(1-r)*(p(t))^2 ) might this result match what you have? Yes! I only derived the formula for the linear ramp, p(t) =

Re: [music-dsp] A theory of optimal splicing of audio in the time domain.

2011-07-13 Thread Olli Niemitalo
On Sat, Jul 9, 2011 at 10:53 PM, robert bristow-johnson r...@audioimagination.com wrote: On Dec 7, 2010, at 5:27 AM, Olli Niemitalo wrote: [I] chose that the ratio a(t)/a(-t) [...] should be preserved by preserved, do you mean constant over all t? Constant over all r. what is the

Re: [music-dsp] A theory of optimal splicing of audio in the time domain.

2011-01-22 Thread Victor Lazzarini
OK, so explain a bit more. On 21 Jan 2011, at 22:55, Sampo Syreeni wrote: My best bet? Go into the cepstral domain to find the most likely loop duration -- dupswapdrop -- the music-dsp mailing list and website: subscription info, FAQ, source code archive, list archive, book reviews, dsp

[music-dsp] A theory of optimal splicing of audio in the time domain.

2010-12-06 Thread robert bristow-johnson
a few mistakes are spotted and corrected before i forget This is a continuation of the thread started by Element Green titled: Algorithms for finding seamless loops in audio As far as I know, it is not published anywhere. A few years ago, I was thinking of writing this up and

Re: [music-dsp] A theory of optimal splicing of audio in the time domain.

2010-12-06 Thread Stefan Stenzel
On 06.12.2010 08:59, robert bristow-johnson wrote: This is a continuation of the thread started by Element Green titled: Algorithms for finding seamless loops in audio I suspect it works better to *construct* a seamless loop instead trying find one where there is none. Stefan --