From andersvi at notam02.no Mon Dec 3 03:35:46 2012 From: andersvi at notam02.no (andersvi at notam02.no) Date: Mon, 03 Dec 2012 12:35:46 +0100 Subject: [CM] LTAS with snd? Message-ID: <87sj7nmkq5.fsf@notam02.no> Hi. Has anyone some code for snd or clm doing a LTAS (average spectrum of whole sounds)? I guess it shouldn't be too heavy to do, but if its out there already... Cheers, -anders From andersvi at notam02.no Mon Dec 3 05:58:37 2012 From: andersvi at notam02.no (andersvi at notam02.no) Date: Mon, 03 Dec 2012 14:58:37 +0100 Subject: [CM] LTAS with snd? References: <87sj7nmkq5.fsf@notam02.no> Message-ID: <87k3szme42.fsf@notam02.no> >>>>> "a" == andersvi writes: a> Hi. Has anyone some code for snd or clm doing a LTAS (average a> spectrum of whole sounds)? actually, isnt LTAS just the same as taking one huge fft with window-size = snd-frames? (at least it looks like its making sense...) ie, in snd: (graph (list->vct (map (lambda (x) (expt x 0.5)) (snd-spectrum (channel->vct 0) blackman2-window (frames v) #t)))) From andersvi at notam02.no Mon Dec 3 06:31:21 2012 From: andersvi at notam02.no (andersvi at notam02.no) Date: Mon, 03 Dec 2012 15:31:21 +0100 Subject: [CM] LTAS with snd? References: <87sj7nmkq5.fsf@notam02.no> <87k3szme42.fsf@notam02.no> Message-ID: <878v9fmcli.fsf@notam02.no> >>>>> "a" == andersvi writes: a> Hi. Has anyone some code for snd or clm doing a LTAS (average a> spectrum of whole sounds)? a> actually, isnt LTAS just the same as taking one huge fft with a> window-size = snd-frames? (at least it looks like its making sense...) a> ie, in snd: a> (graph a> (list->vct (map (lambda (x) (expt x 0.5)) a> (snd-spectrum (channel->vct 0) a> blackman2-window a> (frames v) a> #t)))) plus this one: (define v (channel->vct 0)) From bil at ccrma.Stanford.EDU Mon Dec 3 06:34:16 2012 From: bil at ccrma.Stanford.EDU (Bill Schottstaedt) Date: Mon, 3 Dec 2012 06:34:16 -0800 Subject: [CM] LTAS with snd? In-Reply-To: <878v9fmcli.fsf@notam02.no> References: <87sj7nmkq5.fsf@notam02.no> <87k3szme42.fsf@notam02.no> <878v9fmcli.fsf@notam02.no> Message-ID: <20121203143302.M11264@ccrma.Stanford.EDU> I don't know that term, but perhaps it is similar to the periodogram in dsp.scm -- an average in the sense that you take a bunch of short term ffts and add them together. From andersvi at notam02.no Tue Dec 4 03:46:40 2012 From: andersvi at notam02.no (andersvi at notam02.no) Date: Tue, 04 Dec 2012 12:46:40 +0100 Subject: [CM] LTAS with snd? References: <87sj7nmkq5.fsf@notam02.no> <87k3szme42.fsf@notam02.no> <878v9fmcli.fsf@notam02.no> <20121203143302.M11264@ccrma.Stanford.EDU> Message-ID: <874nk2kpjz.fsf@notam02.no> B> I don't know that term, but perhaps it is similar to the periodogram B> in dsp.scm -- an average in the sense that you take a bunch of B> short term ffts and add them together. LTAS - Long Term Average Spectrum ? The two spectra look similar periodogram and 'mammut-fft' when using N=frames. The approach in periodogram is much more flexible then one huge fft though, having choice of fft-size (and step between ffts). Thanks. From taube at illinois.edu Sun Dec 23 08:06:10 2012 From: taube at illinois.edu (Heinrich Taube) Date: Sun, 23 Dec 2012 10:06:10 -0600 Subject: [CM] ANNOUNCEMENT: Harmonia, a new application for music theory Message-ID: We are delighted to announce the alpha release of Harmonia, a new music theory application available at: http://camil.music.illinois.edu/software/harmonia The homepage contains download links, a brief description of the application's features and what we hope to achieve with this pre-release. Happy holidays! Rick Taube William Andrew Burnson -------------- next part -------------- An HTML attachment was scrubbed... URL: From bil at ccrma.Stanford.EDU Tue Dec 25 11:43:16 2012 From: bil at ccrma.Stanford.EDU (Bill Schottstaedt) Date: Tue, 25 Dec 2012 11:43:16 -0800 Subject: [CM] Snd 13.3 Message-ID: <20121225194156.M34183@ccrma.Stanford.EDU> Snd 13.3 Adam Sampson added DESTDIR support to the makefile. removed rtio.scm. removed all the clm safety stuff (*clm-ouput-safety*, mus-safety etc). as always, Mike Scholz and I made a bazillion improvements! Checked: sbcl 1.1.1|2, cmucl 20d, gtk 3.7.2|4, fftw 3.3.3