Re: [music-dsp] Can anyone figure out this simple, but apparently wrong, mixing technique?

2016-12-22 Thread Theo Verelst
robert bristow-johnson wrote: .. From: "Theo Verelst" .. > > To me it seems the preoccupation of maximizing the mix output isn't wrong, but the digital > domain problems usually has other handles. The choir example of adding say a thousand > voices and needing 10

Re: [music-dsp] Can anyone figure out this simple, but apparently wrong, mixing technique?

2016-12-21 Thread raito
> The crossover between stats and signal processing can show up in > surprising > places. > > – Evan Balster > creator of imitone Which is why there's a chapter on the necessary statistics in Hamming's book on digital filters. Neil Gilmore ra...@raito.com

Re: [music-dsp] Can anyone figure out this simple, but apparently wrong, mixing technique?

2016-12-20 Thread robert bristow-johnson
Original Message Subject: Re: [music-dsp] Can anyone figure out this simple, but apparently wrong, mixing technique? From: "Evan Balster" <e...@imitone.com> Date: Tue, December 20, 2016 11:55 pm To: music-dsp@mu

Re: [music-dsp] Can anyone figure out this simple, but apparently wrong, mixing technique?

2016-12-20 Thread Evan Balster
how up in surprising places. – Evan Balster creator of imitone <http://imitone.com> On Tue, Dec 20, 2016 at 9:07 PM, robert bristow-johnson < r...@audioimagination.com> wrote: > > > Original Message -------- > Subject: Re: [mu

Re: [music-dsp] Can anyone figure out this simple, but apparently wrong, mixing technique?

2016-12-20 Thread robert bristow-johnson
Original Message Subject: Re: [music-dsp] Can anyone figure out this simple, but apparently wrong, mixing technique? From: "Theo Verelst" <theo...@theover.org> Date: Tue, December 20, 2016 6:13 pm To: r...@audi

Re: [music-dsp] Can anyone figure out this simple, but apparently wrong, mixing technique?

2016-12-20 Thread Theo Verelst
To me it seems the preoccupation of maximizing the mix output isn't wrong, but the digital domain problems usually has other handles. The choir example of adding say a thousand voices and needing 10 more bits to capture the highest amplitude of the combined tones at a point where they all

Re: [music-dsp] Can anyone figure out this simple, but apparently wrong, mixing technique?

2016-12-14 Thread robert bristow-johnson
Original Message Subject: Re: [music-dsp] Can anyone figure out this simple, but apparently wrong, mixing technique? From: "James McCartney" <asy...@gmail.com> Date: Wed, December 14, 2016 2:15 p

Re: [music-dsp] Can anyone figure out this simple, but apparently wrong, mixing technique?

2016-12-14 Thread robert bristow-johnson
Original Message Subject: Re: [music-dsp] Can anyone figure out this simple, but apparently wrong, mixing technique? From: "Ethan Fenn" <et...@polyspectral.com> Date: Wed, December 14, 2016 12:09 pm To: music-dsp@music

Re: [music-dsp] Can anyone figure out this simple, but apparently wrong, mixing technique?

2016-12-14 Thread James McCartney
On Wed, Dec 14, 2016 at 11:07 AM, James McCartney wrote: > > > On Wed, Dec 14, 2016 at 11:03 AM, James McCartney > wrote: > >> >> >> On Wed, Dec 14, 2016 at 8:47 AM, Ethan Fenn >> wrote: >> >>> >>> Another interesting family of curves

Re: [music-dsp] Can anyone figure out this simple, but apparently wrong, mixing technique?

2016-12-14 Thread James McCartney
On Wed, Dec 14, 2016 at 11:03 AM, James McCartney wrote: > > > On Wed, Dec 14, 2016 at 8:47 AM, Ethan Fenn > wrote: > >> >> Another interesting family of curves is given by f(x) = x / (1+x^N)^(1/N) >> for even N. The fractional power is kind of

Re: [music-dsp] Can anyone figure out this simple, but apparently wrong, mixing technique?

2016-12-14 Thread James McCartney
On Wed, Dec 14, 2016 at 8:47 AM, Ethan Fenn wrote: > > Another interesting family of curves is given by f(x) = x / (1+x^N)^(1/N) > for even N. The fractional power is kind of annoying, but if you have a > hardware square root then you can compute this for N=2,4,8 easily

Re: [music-dsp] Can anyone figure out this simple, but apparently wrong, mixing technique?

2016-12-14 Thread Ethan Fenn
; > >> > well, it's a different approach to the same problem, but i just added >> my spin at this on Stack Exchange. http://dsp.stackexchange.com/q >> uestions/36202/monotonic-symmetrical-soft-clipping-polynomial (my spin >> is soft clip it.) >> > >> > r b-j

Re: [music-dsp] Can anyone figure out this simple, but apparently wrong, mixing technique?

2016-12-14 Thread Ethan Fenn
lip it.) > > > > r b-j > > > > > > > > ------------ Original Message > ---- > > Subject: Re: [music-dsp] Can anyone figure out this simple, but > apparently wrong, mixing technique? > > From: "Bjorn Roche"

Re: [music-dsp] Can anyone figure out this simple, but apparently wrong, mixing technique?

2016-12-14 Thread Stefan Stenzel
ping-polynomial > (my spin is soft clip it.) > > r b-j > > > > Original Message -------------------- > Subject: Re: [music-dsp] Can anyone figure out this simple, but apparently > wrong, mixing technique? > From: "Bjorn Roc

Re: [music-dsp] Can anyone figure out this simple, but apparently wrong, mixing technique?

2016-12-12 Thread Bjorn Roche
On Sat, Dec 10, 2016 at 6:35 PM, <gjberc...@charter.net> wrote: > >>Message: 1 > >>Date: Sat, 10 Dec 2016 14:31:37 -0500 > >>From: "robert bristow-johnson" <r...@audioimagination.com> > >>To: music-dsp@music.columbia.edu > >>Sub

Re: [music-dsp] Can anyone figure out this simple, but apparently wrong, mixing technique?

2016-12-11 Thread Laurent de Soras
robert bristow-johnson wrote: it's this Victor Toth article: http://www.vttoth.com/CMS/index.php/technical-notes/68 and it doesn't seem to make sense to me. The article is 16 year old now and mention even much older technologies. I think that compression/limiting (or ducking?) + dithering is

Re: [music-dsp] Can anyone figure out this simple, but apparently wrong, mixing technique?

2016-12-10 Thread gjberchin
>>Message: 1 >>Date: Sat, 10 Dec 2016 14:31:37 -0500 >>From: "robert bristow-johnson" <r...@audioimagination.com> >>To: music-dsp@music.columbia.edu >>Subject: [music-dsp] Can anyone figure out this simple, but apparently >> wrong, mixing t

Re: [music-dsp] Can anyone figure out this simple, but apparently wrong, mixing technique?

2016-12-10 Thread Ethan Duni
Ha this article made me chuckle. All the considerations about odd 8 bit audio formats! This method has his desired property that if all but one input is silent, you get the non-silent one at output without attenuation or other degradation. But the inclusion of the cross term makes it quite

Re: [music-dsp] Can anyone figure out this simple, but apparently wrong, mixing technique?

2016-12-10 Thread Vladimir Pantelic
On 10.12.2016 21:42, Eric Brombaugh wrote: This is what happens when you let "software architects" try to do DSP. It seems that what he's doing is maximizing instantaneous dynamic range by subtracting a mixing product. That achieves his goal of normalizing the sum but adds in anharmonic

Re: [music-dsp] Can anyone figure out this simple, but apparently wrong, mixing technique?

2016-12-10 Thread Eric Brombaugh
This is what happens when you let "software architects" try to do DSP. It seems that what he's doing is maximizing instantaneous dynamic range by subtracting a mixing product. That achieves his goal of normalizing the sum but adds in anharmonic components that weren't in the original signals.

Re: [music-dsp] Can anyone figure out this simple, but apparently wrong, mixing technique?

2016-12-10 Thread Ethan Fenn
Doesn't make sense to me either. If the inputs are two pure sines, you'll get combination tones showing up in the output. And they won't be particularly quiet either. -Ethan On Sat, Dec 10, 2016 at 2:31 PM, robert bristow-johnson < r...@audioimagination.com> wrote: > > > it's this Victor Toth

[music-dsp] Can anyone figure out this simple, but apparently wrong, mixing technique?

2016-12-10 Thread robert bristow-johnson
� it's this Victor Toth article:�http://www.vttoth.com/CMS/index.php/technical-notes/68 and it doesn't seem to make sense to me. � it doesn't matter if it's 8-bit offset binary or not, there should not be a multiplication of two signals in the definition. i cannot see what i am missing. �can