New browser chiptune live-coding environment

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Chris McCormick

2 Aug 2018 2 Aug '18

9:04 a.m.

Hi all! (sorry for x-post) Speccy is a browser-based livecoding environment for making procedural chip tunes in ClojureScript. https://chr15m.github.io/speccy/ Video: https://youtu.be/IZtCSfd9G_A Source & doc: https://github.com/chr15m/speccy Here are some synths to paste into the editor to get started: ; blippy synth (sfxr {:wave :square :env/decay 0.1 :note #(at % 32 {0 24 3 29 7 60 12 52 19 29 28 52})}) ; donk bass (sfxr "1111128F2i1nMgXwxZ1HMniZX45ZzoZaM9WBtcQMiZDBbD7rvq6mBCATySSmW7xJabfyy9xfh2aeeB1JPr4b7vKfXcZDbWJ7aMPbg45gBKUxMijaTNnvb2pw" {:note #(or (at % 57 {5 35 27 34}) (at % 32 {0 24 6 29 18 21 26 12}))}) ; hi hat (sfxr {:wave :noise :env/sustain 0.05 :env/decay 0.05 :vol #(sq % [0.3 0.1 0.2 0.1])}) ; snare (sfxr "7BMHBGCKUHWi1mbucW62sVAYvTeotkd4qSZKy91kof8rASWsAx1ioV4EjrXb9AHhuKEprWr2D4u4YHJpYEzWrJd8iitvr23br2DCGu7zMqFmPyoSFtUEqiM64" {:note 36 :vol #(at % 16 {4 0.5 12 0.5})}) Enjoy! Chris. ------------------- http://mccormick.cx

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Louigi Verona

2 Aug 2 Aug

5:23 p.m.

Chris, this is ultra cool. Loving it. The integration with sfxr is such a great touch. One request as I am studying this. Is it possible to have a button to play the code or at least a less used shortcut? Ctrl-S would try to save the html if I click somewhere else first and I wish playing code would've been simpler. And then a question - is it possible to save the tune? So that it can be used, say, in a game? Louigi. On Thu, Aug 2, 2018 at 7:04 AM, Chris McCormick <chris(a)mccormick.cx> wrote:

...

Hi all! (sorry for x-post) Speccy is a browser-based livecoding environment for making procedural chip tunes in ClojureScript. https://chr15m.github.io/speccy/ Video: https://youtu.be/IZtCSfd9G_A Source & doc: https://github.com/chr15m/speccy Here are some synths to paste into the editor to get started: ; blippy synth (sfxr {:wave :square :env/decay 0.1 :note #(at % 32 {0 24 3 29 7 60 12 52 19 29 28 52})}) ; donk bass (sfxr "1111128F2i1nMgXwxZ1HMniZX45ZzoZaM9WBtcQMiZDBbD7rvq6mBCATySS mW7xJabfyy9xfh2aeeB1JPr4b7vKfXcZDbWJ7aMPbg45gBKUxMijaTNnvb2pw" {:note #(or (at % 57 {5 35 27 34}) (at % 32 {0 24 6 29 18 21 26 12}))}) ; hi hat (sfxr {:wave :noise :env/sustain 0.05 :env/decay 0.05 :vol #(sq % [0.3 0.1 0.2 0.1])}) ; snare (sfxr "7BMHBGCKUHWi1mbucW62sVAYvTeotkd4qSZKy91kof8rASWsAx1ioV4EjrX b9AHhuKEprWr2D4u4YHJpYEzWrJd8iitvr23br2DCGu7zMqFmPyoSFtUEqiM64" {:note 36 :vol #(at % 16 {4 0.5 12 0.5})}) Enjoy! Chris. ------------------- http://mccormick.cx _______________________________________________ Linux-audio-user mailing list Linux-audio-user(a)lists.linuxaudio.org https://lists.linuxaudio.org/listinfo/linux-audio-user

-- Louigi Verona https://www.patreon.com/droning https://louigiverona.com/

Chris McCormick

3 Aug 3 Aug

5:44 a.m.

Hi Louigi, Thank you very much for testing, much appreciated! On Thu, Aug 2, 2018 at 7:04 AM, Chris McCormick <chris(a)mccormick.cx> wrote:

...

> Speccy is a browser-based livecoding environment for making > procedural chip tunes in ClojureScript. > > https://chr15m.github.io/speccy/

On 02/08/18 21:23, Louigi Verona wrote:

...

Is it possible to have a button to play the code or at least a less used shortcut?

Yes good idea I will add this. Will help on mobile devices too where you can't hit `ctrl`.

...

Ctrl-S would try to save the html if I click somewhere else first and I wish playing code would've been simpler.

Ctrl-S should not try to save the page as the event is supposed to be suppressed. Can you let me know: * What browser/OS you are on. * If you see any errors in the console (ctrl/cmd-shift-J). * What is in the editor box when you saw this happen. This will help me replicate & diagnose.

...

And then a question - is it possible to save the tune? So that it can be used, say, in a game?

Yes that's a great feature idea. In the short term it would probably not be too hard to export some number of bars to JSON. The JSON could then be used to re-render the tune in the browser or on the command line for playback. I'll add it to the list. Thanks again! Cheers, Chris. -- http://mccormick.cx/

Louigi Verona

9 Aug 9 Aug

1:10 p.m.

Chris! Reading the docs. I am not sure if this is a mistake or not. It says #(at % 8 {2 60 7 55}) will yield: nil nil 60 nil nil nil nil 55 nil nil 60 nil nil nil nil 55 nil ... But shouldn't the amount of nils between 60 and 55 be seven and not four? Louigi Verona https://louigiverona.com/ On Fri, Aug 3, 2018 at 3:44 AM Chris McCormick <chris(a)mccormick.cx> wrote:

...

Hi Louigi, Thank you very much for testing, much appreciated! On Thu, Aug 2, 2018 at 7:04 AM, Chris McCormick <chris(a)mccormick.cx> wrote:

> Speccy is a browser-based livecoding environment for making > procedural chip tunes in ClojureScript. > > https://chr15m.github.io/speccy/

On 02/08/18 21:23, Louigi Verona wrote:

Is it possible to have a button to play the code or at least a less used shortcut?

Yes good idea I will add this. Will help on mobile devices too where you can't hit `ctrl`.

Ctrl-S would try to save the html if I click somewhere else first and I wish playing code would've been simpler.

And then a question - is it possible to save the tune? So that it can be used, say, in a game?

Chris McCormick

10 Aug 10 Aug

6:20 a.m.

Hi Louigi, On 09/08/18 17:10, Louigi Verona wrote:

...

Reading the docs. I am not sure if this is a mistake or not. It says |#(at % 8 {2 60 7 55}) will yield: |nil nil 60 nil nil nil nil 55 nil nil 60 nil nil nil nil 55 nil ...| |But shouldn't the amount of nils between 60 and 55 be seven and not four?

What the `at` function does is sequence events at particular time ticks modulus the second argument. So here we are saying take the current tick % and wrap it around at 8: 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 .... Then the map says "when you hit 2 return 60, and when you hit 7 return 55". So that's why we get the pattern: 0 1 2 3 4 5 6 7 0 1... nil nil 60 nil nil nil nil 55 nil nil... The 60 is appearing at 2 and the 55 is appearing at 7 and so on. Cheers, Chris. -- http://mccormick.cx/

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Chris McCormick
Louigi Verona