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CHANGELOG.md

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1.3.3

Bug fixes

  • Alga: fix interpolateTempo's clock retrieval.

1.3.2

Bug fixes

  • Alga: Fixed a bug for SC 3.13 rebuiling AlgaSynthDefs on boot.

1.3.1

Bug fixes

  • AlgaTemp: fixed support everywhere (e.g, within a Pfunc) for AlgaTemps declared with already compiled AlgaSynthDefs.

  • AlgaProxySpace: removed the overrides for Symbol.ar and Symbol.kr.

  • AlgaNode: fixed help filed for replacePlayTime.

1.3.0

New features

  • AlgaMonoPattern: a new class that implements a monophonic interpolated sequencer:

    (
Alga.boot({
    //Mono sequencer featuring AlgaTemps modulating at audio rate
    ~freqSeq = AlgaMonoPattern((
        rate: \audio,
        chans: 2,
        in: Pseq([
            AlgaTemp({ SinOsc.ar([Rand(1, 100), Rand(1, 100)]) }, scale: [Pwhite(220, 440), Pwhite(440, 880)]),
            [440, 660],
            880
        ], inf),
        time: Pwhite(0.01, 1),
        dur: Prand([0.125, 0.25, 0.5, 1], inf)
    ));

    //Mono sequencer featuring AlgaTemps modulating at audio rate
    ~ampSeq = AlgaMonoPattern((
        rate: \audio,
        in: AlgaTemp({ SinOsc.ar(Rand(1, 1000)) }),
        time: Pwhite(0.01, 1),
        dur: Prand([0.5, 1, 2], inf)
    ));

    //The AlgaNode to modulate using both FM and AM
    ~sine = AlgaNode({ SinOsc.ar(\freq.ar(440!2)) }, [\freq, ~freqSeq, \amp, ~ampSeq]).play;
});
)

  • AlgaSequencer: a new class that implements a sequence of AlgaMonoPatterns:

    (
Alga.boot({
    //Poly sequencer featuring AlgaTemps modulating at audio rate
    ~seq = AlgaSequencer((
        freq: (
            rate: \audio,
            chans: 2,
            in: Pseq([
                AlgaTemp({ SinOsc.ar([Rand(1, 100), Rand(1, 100)]) }, scale: [Pwhite(220, 440), Pwhite(440, 880)]),
                [440, 660],
                880
            ], inf),
            time: Pwhite(0.01, 1)
        ),
        amp: (
            rate: \audio,
            in: AlgaTemp({ SinOsc.ar(Rand(1, 1000)) }),
            time: Pwhite(0.01, 1),
        ),
        dur: Prand([0.5, 1, 2], inf)
    ));
    
    //The AlgaNode to modulate using both FM and AM
    ~sine = AlgaNode({ SinOsc.ar(\freq.ar(440!2)) }, [\freq, ~seq.freq, \amp, ~seq.amp]).play;
});
)

  • AlgaPattern: 'def' now supports Array entries to create stacked voices:

    (
Alga.boot({
    a = AlgaPattern((
        def: [{ SinOsc.ar(\freq.kr) }, { Saw.ar(\freq.kr * 0.25) }],
        amp: AlgaTemp({ EnvPerc.ar }),
        freq: Pseq([220, 440, 880], inf), 
        dur: 0.5
    )).play(2)
})
)

  • AlgaNode: trigger rate parameters are now supported:

    (
Alga.boot({
    z = AlgaNode({
        var env = Env.perc(0.01, 1).kr(0, \trig.tr(1));
        SinOsc.ar(440) * env;
    }).play(2)
})
)

z <<.trig 1

1.2.1

New features

  • AlgaPattern: sustain is now defaulted to 1. This does not affect AlgaSynthDefs that do not implement a \gate parameter or that can already free themselves.

  • AlgaSynthDef: add the replaceOut argument. This allows users to use ReplaceOut as output instead of Out / OffsetOut.

Bug fixes

  • AlgaNode: Fixed moveToHead and moveToTail. No AlgaSpinRoutine is used anymore, as that was causing the node ordering for AlgaBlock to not work if the nodes were not instantiated yet.

  • AlgaPattern: Fixed multichannel AlgaTemps.

  • AlgaOut: Fixed the parameter argument. It was only working with \in before.

1.2.0

New features

  • AlgaPattern: it is now possible to interpolate the 'dur' parameter!

    (
Alga.boot({
    //Pattern to modify
    a = AP((
        def: { SinOsc.ar * EnvPerc.ar(release: 0.1) * 0.5 },
        dur: 0.5
    )).play(chans:2);

    //Metronome
    b = AP((
        def: { EnvPerc.ar(release: SampleDur.ir); Impulse.ar(0) },
        dur: 1
    )).play(chans:2);
})
)

//Using Env and resync
a.interpDur(0.1, time: 5, shape: Env([0, 1, 0.5, 1], [2, 3, 4]))

//No resync
a.interpDur(0.5, time: 3, resync: false)

//With resync + reset
a.interpDur(Pseq([0.25, 0.25, 0.125], inf), time: 5, reset: true)

//Other time params work too!
a.interpStretch(0.5, time: 3, shape: Env([0, 1, 0.5, 1], [2, 3, 4]))

  • AlgaPattern now supports scalar parameters. This is now the preferred way of interfacing with Buffer parameters (check Examples/AlgaPattern/03_Buffers.scd). Also, scalar parameters can be used for optimization reasons for parameters that need to be set only once at the trigger of the Synth instance, without the overhead of the interpolator.

    (
Alga.boot({
    a = AP((
        def: { SinOsc.ar(\f.ir) * EnvPerc.ar },
        f: Pseq([440, 880], inf)
    )).play(chans: 2)
})
)

//Change at next step
a.from(Pseq([330, 660], inf), \f, sched: AlgaStep())

//Change at next beat
a.from(Pseq([220, 440, 880], inf), \f, sched: 1)

  • AlgaPattern and AlgaPatternPlayer now support Pfunc and Pkey. All scalar and non-SynthDef parameters are now retrievable from any parameter. These are ordered alphabetically:

    (
Alga.boot({
    a = AP((
        def: { SinOsc.ar(\f.kr) * EnvPerc.ar },
        _f: 440, 
        f: Pfunc { | e | e[\_f] }
    )).play(chans: 2)
})
)

//Interpolation still works
a.from(Pfunc { | e | e[\_f] * 2 }, \f, time: 3)

//These can be changed anytime
a.from(880, \_f, sched: AlgaStep())

  • AlgaPattern: added the lf annotator for functions in order for them to be declared as LiteralFunctions. These are used for keys that would interpret all Functions as UGen Functions, while they however could represent a Pfunc or Pif entry:

    (
Alga.boot({
    a = AP((
        //.lf is needed or it's interpreted as a UGen func
        def: Pif(Pfunc( { 0.5.coin }.lf ), 
            { SinOsc.ar(\freq.kr(440)) * EnvPerc.ar },
            { Saw.ar(\freq.kr(440)) * EnvPerc.ar * 0.5 }
        ),

        //No need to .lf here as 'freq' does not expect UGen functions like 'def' does
        freq: Pif( Pfunc { 0.5.coin },
            AT({ LFNoise0.kr(10) }, scale: [440, 880]),
            Pseq([ AT { DC.kr(220) }, AT { DC.kr(440) }], inf)
        )
    )).play(chans:2)
})
)

  • AlgaSynthDef: can now correctly store and retrieve AlgaSynthDefs with the write / load / store calls. By default, these are saved in the AlgaSynthDefs folder in the AlgaLib folder, but it can be changed to wherever. The definitions in AlgaSynthDefs are automatically read at the booting of Alga. Other definitions can be read with the Alga.readAll / Alga.readDef calls.

Bug fixes

  • Major parser rewrite that leads to more predictable results and a larger amount of patterns supported.

1.1.1

New features

  • Added the AlgaQuant class to schedule actions on specific bars:

    (
Alga.boot({
    a = AlgaPattern({ SinOsc.ar * EnvPerc.ar }).play(chans: 2)
});
)

//Schedule at the next bar
a.from(0.5, \dur, sched: AlgaQuant(1));

//Schedule in two bars
a.from(0.25, \dur, sched: AlgaQuant(2));

//Schedule at the next bar + 1 beat
a.from(0.5, \dur, sched: AlgaQuant(1, 1));

Bug fixes

  • AlgaBlock: check for new connections to trigger a re-order, and not just for upperMostNodes.

  • AlgaBlock: fix findAllUnusedFeedback in order to be used on any new connection.

  • AlgaNode: trigger addActiveInOutNodes on replace for old input connections.

  • AlgaPattern: do not run dur.next twice on replace.

  • AlgaNode and AlgaPattern: only the latest executed replace and from is executed on scheduled time. This allows the user to correct his/her/their own mistakes while live coding with only having the latest iteration considered as valid code.

1.1.0

New features

  • Added the interpShape option. This allows to specify an interpolation shape in the form of an Env. All connection methods have also been updated to receive a shape argument to set the Env for the specific connection. Check the Examples/AlgaNode/10_InterpShape.scd below:

    (
Alga.boot({
    a = AlgaNode(
        { SinOsc.ar(\freq.kr(440)) },
        interpTime: 3,
        interpShape: Env([0, 1, 0.5, 1], [1, 0.5, 1])
    ).play
})
)

//The connection will use the Env declared in interpShape
a <<.freq 220;

//Temporary Env (standard ramp)
a.from(880, \freq, shape: Env([0, 1]))

//Using the original interpShape
a <<.freq 440;

  • Added multithreading support. Now, if booting Alga with supernova, it will automatically parallelize the arrangement of the nodes over the CPU cores. Check the Examples/Extras/Multithreading.scd below:

    //The code to test
(
c = {
    var reverb;

    //Definition of a bank of 50 sines
    AlgaSynthDef(\sines, {
        Mix.ar(Array.fill(50, { SinOsc.ar(Rand(200, 1000)) * 0.002 }))
    }).add;

    s.sync;

    //A reverb effect
    reverb = AlgaNode({ FreeVerb1.ar(\in.ar) }).play(chans: 2);

    //50 separated banks of 50 sine oscillators.
    //Their load will be spread across multiple CPU cores.
    50.do({
        var bank = AlgaNode(\sines);
        reverb <<+ bank;
    });

    //Print CPU usage
    fork {
        loop {
            ("CPU: " ++ s.avgCPU.asStringPrec(4) ++ " %").postln;
            1.wait;
        }
    }
}
)

//Boot Alga with the supernova server
//Alga will automatically spread the load across multiple CPU cores.
Alga.boot(c, algaServerOptions: AlgaServerOptions(supernova: true, latency: 1));

//Boot Alga with the standard scsynth server.
//Note the higher CPU usage as the load is only on one CPU core.
Alga.boot(c, algaServerOptions: AlgaServerOptions(latency: 1))

  • Added support for using the same AlgaSynthDefs for both AlgaNodes and AlgaPatterns:

    //1
(
Alga.boot({
    AlgaSynthDef(\test, {
        SinOsc.ar(\freq.kr(440))
    }, sampleAccurate: true).add;

    s.sync;

    //a = AN(\test).play;

    b = AP((
        def: \test,
        amp: AlgaTemp({
            EnvPerc.ar(\atk.kr(0.01), \rel.kr(0.25), \curve.kr(-2), 0)
        }, sampleAccurate: true),
        dur: 0.5,
    )).play(chans:2)
});
)

//2
(
Alga.boot({
    y = AP((
        def: { SinOsc.ar(\freq.kr(440)) * \amp.kr(1) },
        amp: AlgaTemp({
            EnvPerc.kr(\atk.kr(0.01), \rel.kr(0.25), \curve.kr(-2), 0)
        }),
        dur: 0.5,
    )).play(chans:2)
})
)

//3
(
Alga.boot({
    y = AP((
        def: { SinOsc.ar(\freq.kr(440)) },
        amp: Pseq([
            AlgaTemp({
                EnvPerc.ar(\atk.kr(0.01), \rel.kr(0.25), \curve.kr(-2), 0) * 0.25
            }, sampleAccurate: true),
            AlgaTemp({
                EnvPerc.ar(\atk.kr(0.001), \rel.kr(0.1), \curve.kr(-2), 0) * 0.25
            }, sampleAccurate: true),
        ], inf),
        freq: Pwhite(440, 880),
        dur: Pwhite(0.01, 0.2),
    )).play(chans:2)
})
)

  • Added support for sustain / stretch / legato to AlgaPatterns:

    //1
(
Alga.boot({
    a = AP((
        def: { SinOsc.ar * EnvGen.ar(Env.adsr, \gate.kr) }, //user can use \gate
        sustain: Pseq([1, 2], inf), //reserved keyword
        dur: 3
    )).play
})
)

//2
(
Alga.boot({
    a = AP((
        def: { SinOsc.ar },
        amp: AlgaTemp({ EnvGen.ar(Env.adsr, \gate.kr) }, sampleAccurate: true),
        sustain: Pseq([1, 2], inf),
        dur: 3
    )).play
})
)

//3
(
Alga.boot({
    a = AP((
        def: { SinOsc.ar(\freq.kr(440)) *
            EnvGen.kr(Env.adsr(\atk.kr(0.01), \del.kr(0.3), \sus.kr(0.5), \rel.kr(1.0)), \gate.kr, doneAction: 2) *
            \amp.kr(0.5)
        },
        dur: 4,
        freq: Pseed(1, Pexprand(100.0, 800.0).round(27.3)),
        amp: Pseq([0.3, 0.2], inf),
        //sustain: 4,
        legato: Pseq([1, 0.5], inf),
        rel: 0.1,
        callback: { |ev| ev.postln },
    )).sustainToDur_(true).play
})
)

//Same as:
(
Alga.boot({
    a = AP((
        def: { SinOsc.ar(\freq.kr(440)) *
            EnvGen.kr(Env.adsr(\atk.kr(0.01), \del.kr(0.3), \sus.kr(0.5), \rel.kr(1.0)), \gate.kr, doneAction: 2) *
            \amp.kr(0.5)
        },
        dur: 4,
        freq: Pseed(1, Pexprand(100.0, 800.0).round(27.3)),
        amp: Pseq([0.3, 0.2], inf),
        sustain: 4,
        legato: Pseq([1, 0.5], inf),
        rel: 0.1,
        callback: { |ev| ev.postln },
    )).play
})
)

  • Added the AlgaStep class. This class allows to schedule actions not on a specific beat, but at a specific "pattern trigger" that will happen in the future:

    (
Alga.boot({
    a = AlgaPattern((
        def: { SinOsc.ar(\freq.ar(440)) * EnvPerc.ar * 0.5 },
        dur: 1
    )).play
})
)

//Schedule 2 triggers from now
a.from(Pseq([220, 880], inf), \freq, time: 1, sched: AlgaStep(2))

//Schedule at the next trigger
a.from(Pseq([0.5, 0.25], inf), \dur, sched: AlgaStep(0))

  • Added the AlgaProxySpace class. This allows to quickly define AlgaNodes and AlgaPatterns in a fashion that is similar to SC's ProxySpace. Check the help files and the Examples folder for a deeper look at all of its features.

    p = AlgaProxySpace.boot;

//A simple node
~a = { SinOsc.ar(100) };

//Use it as FM input for another node
~b.play(chans:2);
~b.interpTime = 2;
~b.playTime = 0.5;
~b = { SinOsc.ar(\freq.ar(~a).range(200, 400)) };

//Replace
~a = { SinOsc.ar(440) };

//New connection as usual
~b.from({ LFNoise1.ar(100) }, \freq, time:3)

  • Introducing AlgaPatternPlayer, a new way to trigger and dispatch AlgaPatterns:

    (
Alga.boot({
    //Define and start an AlgaPatternPlayer
    ~player = AlgaPatternPlayer((
        dur: Pwhite(0.2, 0.7),
        freq: Pseq([440, 880], inf)
    )).play;

    //Use ~player for both indexing values and triggering the pattern
    ~pattern = AP((
        def: { SinOsc.ar(\freq.kr + \freq2.kr) * EnvPerc.ar },
        freq: ~player[\freq],
        freq2: ~player.read({ | freq |
            if(freq == 440, { freq * 2 }, { 0 })
        }),
    ), player: ~player).play;
})
)

//Interpolation still works
~pattern.from(~player.({ | freq | freq * 0.5 }), \freq, time: 5) //.value == .read
~pattern.from(~player.({ | freq | freq * 2 }), \freq2, time: 5)

//Modify dur
~player.from(0.5, \dur, sched: AlgaStep(3))

//If modifying player, the interpolation is still triggered on the children
~player.from(Pseq([330, 660], inf), \freq, time: 5)

//Removing a player stops the pattern triggering
~pattern.removePlayer;