Messages

1

SFML website / Re: Custom Avatar Is Not Accepted

« on: August 26, 2021, 08:44:27 pm »

FYI "Upload an avatar" works for 100x100px jpegs.

Also, I'm wondering if there is a better way to attach images without using an external host. I'm only asking because i'm currently in the process of deleting my imgur account.

I want to instead attach my images images and have them visible inline like this:


Is there a reason attached images need to show up again at the bottom of the post?

2

SFML projects / Re: [MAC][Linux?]I published an SFML applet: ToneBoards

« on: January 17, 2020, 11:33:14 pm »

I had a little time, and made a quick demos: See Attachment Below

...I still want to port to Linux(though not sure when it will happen).

...maybe I should just ploop down my code for the update here for all to use(won't do any good hidden away):

(click to show/hide)

#include <SFML/Audio.hpp>
#include <SFML/Graphics.hpp>
#include "ResourcePath.hpp"
#include <cmath>
#include <iostream>
#include <string>

//const unsigned SAMPLES = 22050;//44100;//
const unsigned SAMPLE_RATE = 44100;//44112
const unsigned AMPLITUDE = 30000;

const double TWO_PI = 6.28318530717958647692;
const double increment = 440./44100;//middle A

const int numharmonics = 128;//1;//2;//4;//8;//16;//32;//64;//128;
const float EulerMasch = 0.6;//0.5772;//0.5772156649...//audible hum numharmonics=2
const float hoffset = 0.6;//0.5;//still audible hum numharmonics=2
const float bapprox = 1.65;

const double lgrow = -8.0/102.0;//-16.0/102.0;//-16.0/128.0;//-8.0/128.0;
const short lmid = 102;//128;
const double lopt = 1.0;//lopt>0

//y = sin(2π*M*x)    =>    ƒ = M    <=>    λ = 1/M
//M = (440/44100)*2^(i/24)

int main(int, char const**){
    //double jmult = 1./2;  // 1
    //double jmult = 1./4;  // 2
    //double jmult = 1./8;    // 3
    //double jmult = 1./16;   // 4  div 5
    double jmult = 1./40; //this!//this!//this!//this!//this!//this!
    short wfund = 0;
   
    std::cout << "jmult: " << jmult << "\n\n";
    for (int i=0; i<256; i++) {
        int duration = (int) (jmult*SAMPLE_RATE/exp2((double) (i-138)/24));//jmult/m;//relative to middle A
        double dur = (jmult*SAMPLE_RATE/exp2((double) (i-138)/24));//relative to middle A
        //if (duration < 22051) {
        //if (duration < 44101) {
        if (duration < 88201) {
            jmult *= 2;
            duration = (int) (jmult*SAMPLE_RATE/exp2((double) (i-138)/24));//jmult/m;
            dur = (jmult*SAMPLE_RATE/exp2((double) (i-138)/24));
        }
        double cycles = 440.*exp2((double) (i-138)/24)*dur/44100.;//relative to middle A
        //std::cout << "tone_" << i << "\'s lambda is " << ((int) 1/m) << " samples long\n";
        std::cout << "tone_" << i << " lambda " << dur << " : " << duration << " : " << " cycles: " << cycles << " # " << i - 138 << "\n";
       
        float mlogistic = 1.0+exp(lgrow*(i-lmid));
       
        unsigned durationSAMPS = duration;
        sf::Int16 *myrawsamples = new sf::Int16[durationSAMPS];
        double x = 0;
        for (unsigned j = 0; j < durationSAMPS; j++) {//build//raw//build//raw//build//raw//build//raw//build//raw
            //myrawsamples[j] = AMPLITUDE * sin(x*TWO_PI);
            //myrawsamples[j] = AMPLITUDE * sin(x*TWO_PI)*i/255; //fundamental*(i)/256 + harmonics*(256-i)/256
            //myrawsamples[j] = AMPLITUDE * sin(x*TWO_PI)*wfund/138; //fundamental*(i)/256 + harmonics*(256-i)/256
            //myrawsamples[j] = AMPLITUDE * sin(x*TWO_PI)*i/255;
            //myrawsamples[j] = AMPLITUDE * sin(x*TWO_PI)*(255-255/(i+1))/255;
            myrawsamples[j] = AMPLITUDE * sin(x*TWO_PI)/pow(mlogistic, lopt);//pow (double base, double exponent)
            //y=255/(1+e^(-8/128(x-128)))
            for(int h=1; h<numharmonics+1; h++){
                //myrawsamples[j] += AMPLITUDE * sin(h*x*TWO_PI)/numharmonics;
                //myrawsamples[j] += AMPLITUDE * sin(h*x*TWO_PI)*(numharmonics+1-h)/(numharmonics*(numharmonics+1)/2);
                //harmonics += AMPLITUDE * sin(h*x*TWO_PI)*(numharmonics+1-h)/(numharmonics*(numharmonics+1)/2);
                //myrawsamples[j] += AMPLITUDE * sin(h*x*TWO_PI)*(numharmonics+1-h)/(numharmonics*(numharmonics+1)/2)*(256-i)/256; //fundamental*(i)/256 + harmonics*(256-i)/256
                //myrawsamples[j] += AMPLITUDE * sin(h*x*TWO_PI)/h/(log(h + hoffset)+EulerMasch)*(255-i)/255; //fundamental*(i)/256 + harmonics*(256-i)/256
                //if (wfund < 138) {
                    //myrawsamples[j] += AMPLITUDE * sin(h*x*TWO_PI)/h/(log(h + hoffset)+EulerMasch)*(138-wfund)/138;//hseriesbest!
                    //myrawsamples[j] += AMPLITUDE * sin(h*x*TWO_PI)/numharmonics*(138-wfund)/138;
                    //myrawsamples[j] +=
                    //    AMPLITUDE * sin(h*x*TWO_PI)*(numharmonics+1-h)/(numharmonics*(numharmonics+1)/2)*(138-wfund)/138;
                    //myrawsamples[j] += AMPLITUDE * sin(h*x*TWO_PI)/h/h/(-1/(h+hoffset)+1.65)*(138-wfund)/138;//y=-1/(x+0.6)+1.65
                //}
                //myrawsamples[j] += AMPLITUDE * sin(h*x*TWO_PI)/h/h/(-1/(h+hoffset)+1.65)*(255-i)/255;
                //myrawsamples[j] += AMPLITUDE * sin(h*x*TWO_PI)/h/h/(-1/(h+hoffset)+bapprox)*(255/(i+1))/255;
                myrawsamples[j] += AMPLITUDE * sin(h*x*TWO_PI)/h/h/(-1/(h+hoffset)+bapprox)*(1-1/pow(mlogistic, lopt));
                //y=255/(1+e^(-8/128(x-128)))
            }
            x += increment*exp2((double) (i-138)/24);//mNOTESarray/12);//relative to middle A
            //lowest note is 5.75 octaves below middle A
        }
        sf::SoundBuffer *Buffer = new sf::SoundBuffer();
        if (!Buffer->loadFromSamples(myrawsamples, durationSAMPS, 1, SAMPLE_RATE)) {
            std::cerr << "INITIALIZATION failed!" << std::endl;
            return 1;
        }
        std::string outfilename = "tone_" + std::to_string(i) + "_.ogg";//outfiles/
        std::cout << outfilename << " at " << resourcePath() << "\n\n";
        Buffer->saveToFile(resourcePath() + outfilename);//___
        if (wfund < 138) {
            wfund++;
        }
    }
   
   
    return EXIT_SUCCESS;
}

3

SFML projects / Re: [MAC][Linux?]I published an SFML applet: ToneBoards

« on: January 13, 2020, 04:38:08 am »

Hey all, Update Here(done with the cryptocoins btw):

I recently found some time, in 3.5 years since first publishing my app on the Mac Appstore, to fix the sound files for ToneBoards. For those interested, you can now download the new tones on github. Install by dragging and dropping the contents of the TONESv15 into your toneboards app package TONESv10 folder (sorry, I'm on limited time, and can't make it fancy).

...I still plan to port to linux(recently been playing with MX Linux) although stuff just keeps getting in the way. Anyway, I thought I'd share these before I forgot about them. These new sounds are designed to play better on small laptop speakers, especially the base notes! Maybe I'll provide an explanation of how I made them later.

...It's a shame that during the apple dev publishing process, I lost some commented-out code, which could perhaps help me in porting to linux. Perhaps it was my fault, although I just haven't brought myself to research and rewrite it yet(Also, I'm still looking for a solution to my problem finger).

...And sorry no demo for the moment(I can't spare my browser tabs right now, and quicktime + toneboards seam to kick it over the edge. Just wanted to post this before I forget.

I really would like to port this to Linux, though I'm kind of sad that there are no linux distros that support Miller Columns, and Firefox's bookmark system is all screwed up... Also, definitely still sucks that the doctors refuse to fix my finger(healthcare is too expensive anyway, it's probably better it just stays broken).


...I guess I can at least post some wikipedia links to the basics concepts underpinning my sound-files tweaking:
Ramp function
Harmonic series
Basel problem
Sigmoid function/Logistic function

...also I found some notes; they could perhaps be useful to someone:

(click to show/hide)

https://en.wikipedia.org/wiki/Overtone

overtones   harmonics
fundamental   1st
1st       2nd      +1 octave
2nd      3rd
3rd      4th      +2 octaves
4th      5th
5th      6th
6th      7th
7th      8th      +3 octaves
8th      9th
9th      10th
10th      11th
11th      12th
12th      13th
13th      14th
14th      15th
15th      16th      +4 octaves
...
31st      32nd      +5
63      64      +6
127      128      +7

https://www.historicaltuning.com/Harmonics.html


n∑_i=1(i) = 1+2+3+...+n = n(n+1)/2

1   1
2   3
3   6
4   10
5   15
6   21
7   28
8   36
9   45
10   55
11   66
12   78
13   91
14   105
15   120
16   136
17   153
18   171
19   190
20   210


(numharmonics+1-h)/(numharmonics*(numharmonics+1)/2)

fundamental*(i)/256 + harmonics*(256-i)/256

https://en.wikipedia.org/wiki/Lipps–Meyer_law

https://en.wikipedia.org/wiki/Harmonic_series_(mathematics)

https://en.wikipedia.org/wiki/Euler–Mascheroni_constant

https://en.wikipedia.org/wiki/Harmonic_number

https://en.wikipedia.org/wiki/Recurrence_relation

https://en.wikipedia.org/wiki/Harmonic_series_(mathematics)#p-series

y=ln(x+0.5)+0.5772156649... or y=ln(x)+0.5772156649...+1/(2x)+1/(12x^2)

//lowest note is 5.75 octaves below middle A
hz   keyboard   mytone#
440    middle A   138
220   -1      114
110   -2      90
55   -3      66
27.5   -4      42   _20hz lower limit_
13.75   -5      18
6.875   -6      -6

https://en.wikipedia.org/wiki/Riemann_zeta_function

https://en.wikipedia.org/wiki/Basel_problem

S x^-2 = -x^-1

y=-1/(x+0.6)+1.65

440   138   middle A
880   162   +1
1760   186   +2
3520   210   +3
7040   234   +4
14080   258   +5

y=-1/(x+0.6)+1.65

0=-255/(255+0.6)+c

i:0-255

y=255/(x+1)-1

https://en.wikipedia.org/wiki/Sigmoid_function

y=L/(1+e^(-k(x-xº)))
y=255/(1+e^(-8/128(x-128)))

4

SFML projects / Re: [MAC][Linux?]I published an SFML applet: ToneBoards

« on: December 31, 2017, 08:00:19 am »

I decided to publish the source for ToneBoards. I just haven't had as much time to work on it as I would have liked this past year. Perhaps someone will find it useful. Also I'm kind of thinking about letting my Apple developer account lapse. It's just another expense for me right now, and was sort of a hassle to set up. I'm becoming more interested in other ways to assure users of quality/integrity of a piece of software. I've recently discovered a makeshift alternative to apple developer certificates(i think). I mean what is the point of code signing when you can just compare digests using openSSL?

Below are some Github links, and I'm also posting digests and filesizes. I think this should provide a way for users to gain 99% of the assurances provided by the Appstore(with a couple added steps on the user's part).

https://github.com/kipbits/ToneBoards/releases
xxd ToneBoards.app.zip
size(hex):0db4330

openssl dgst -sha512 ToneBoards.app.zip
SHA512(ToneBoards.app.zip)= ef8c3a1e54301c8a6ad0e53706e4e5e5c9f0fc85ee4d8d1aee6faf195801494a1b919b02be1de4455f005d04308270b8e8c3c06c254849a7a4c0b74ed6a2881c

https://github.com/kipbits/SFML-2.3.2-Updated-plist_altered-keyboard/releases
xxd Frameworks.tar.gz
size(hex):0367110

openssl dgst -sha512 Frameworks.tar.gz
SHA512(Frameworks.tar.gz)= 3524096384e6337b654a85286f91bebdd86534d0719e735f4e29b40687efb36d4de9add983d56a12c78cf2f58aba3876104f2f3b851d39dbb8df5131070448c9

5

SFML projects / Re: [MAC][Linux?]I published an SFML applet: ToneBoards

« on: February 25, 2017, 01:42:07 am »

also, I'm still looking into an alternative linux/unix development platform(as apposed to ubuntu). I'm wondering if anyone has built SFML on FreeBSD or Étoilé?


edit: http://en.sfml-dev.org/forums/index.php?topic=13419.msg94079#msg94079

looks like someone else already did this

6

SFML projects / Re: [MAC][Linux?]I published an SFML applet: ToneBoards

« on: February 24, 2017, 10:03:12 pm »

I think you are right about Freetype being optional GPL. The Freetype license itself is very permissive. I posted an answer to my question on law.stackexchange. I don't think any of it really applies to SFML other than to say there's nothing to worry about, but people might find it interesting...

7

SFML projects / Re: [MAC][Linux?]I published an SFML applet: ToneBoards

« on: February 20, 2017, 07:23:36 pm »

Thanks for the info.

I do plan to do more research into this

8

SFML projects / Re: [MAC][Linux?]I published an SFML applet: ToneBoards

« on: February 20, 2017, 05:33:48 pm »

I suppose an original developer can relicense there software(freetype), but why would they still give the GPL option? why not simply copyfree? is freetype built on gpl parts? if so wouldn't that make gpl forever, and all work linking to it also gpl?

Maybe i'm missing something?

9

SFML projects / Re: [MAC][Linux?]I published an SFML applet: ToneBoards

« on: February 20, 2017, 01:02:57 pm »

External libraries used by SFML
-------------------------------

* OpenAL-Soft is under the LGPL license
* libjpeg is public domain
* stb_image and stb_image_write are public domain
* freetype is under the FreeType license or the GPL license
* libogg is under the BSD license
* libvorbis is under the BSD license
* libflac is under the BSD license


Anyway I was planning to read through the GPL/LGPL when I get the time to really sit and process what it means. Its been kind of hard to find definitive information about it. A lot of disagreement from what i've seen.

10

SFML projects / Re: [MAC][Linux?]I published an SFML applet: ToneBoards

« on: February 19, 2017, 09:09:59 pm »

I posted a question on law.stackexchange.

11

SFML projects / Re: [MAC][Linux?]I published an SFML applet: ToneBoards

« on: February 19, 2017, 03:51:13 pm »

Having second thoughts about getting too much into Gnome as a platform. GPL/LGPL is kind of alot to wrap your head around. I have alot of concerns about how i might be limited going with a platform like this. I'm trying to make this worth my time, you know what i mean (;P)?

I noticed some of the libraries SFML uses are LGPL, GPL. from what i understand LGPL is not necessarily a problem, but GPL makes me worry.
Will I need to release all my source-code?

Anyway wondering if anyone knows of a platform with a more straight-forward and Free mission statement, not this comrade BS, you know what i mean (;P)?

12

SFML projects / Re: [MAC][Linux?]I published an SFML applet: ToneBoards

« on: February 14, 2017, 03:54:20 pm »

Update: I'm thinking I'll go with Gnome after all. I still have not found any good way to distribute paid linux apps; I was kind of wondering if Gnome-Software had any plans for this. Will post when i get information.

I've been very sidetracked by other projects, so I version 2 is still on the back burner. I'm still running sfml-2.3.2 on my mac. Good news though, I bought a new dev machine, so hopefully will have some time and get back here in the not to distant future.

13

SFML projects / Re: [MAC][Linux?]I published an SFML applet: ToneBoards

« on: November 07, 2016, 04:55:46 pm »

FWIW I'm looking into Elementary OS.
wikipedia
and it looks like they have an AppCenter

14

SFML projects / Re: [MAC][Linux?]I published an SFML applet: ToneBoards

« on: September 20, 2016, 07:08:03 pm »

Ok, I've set up 3 different partitions now, and am having all sorts of trouble finding the right sdks and stuff. I'm wondering if some linux veterans have any preferred distro & setup? It just seems like there are too many choices, and I don't know where to start. I'm currently trying for a setup so I can later publish to GNOME Software. This article seemed to suggest that might be the best way to go. Is this the recommended way to distribute? or should i be heading in some other direction?

15

SFML projects / Re: [MAC][Linux?]I published an SFML applet: ToneBoards

« on: September 07, 2016, 11:56:50 pm »

Mac Developer stuff 's been getting me down, I still have not made much progress on the companion app. I was thinking of trying to port to linux. Could anyone give me any leads on where i might publish my app if i do port it.

Does Ubuntu still have an app store?

 It's been awhile since i've done anything linux


Edit: it looks like there are many choices: https://www.gnome.org/getting-gnome/