Fork Code: Keyboard Pattern recorder with samples this time

name

code content

(
// Function to create our keyboard
~createKeyboard = {
    var startTime, currentOctave = 0;
    var keyboardActive = false;
    var chordNotes = Set.new;
    var buffer;

    // Load the audio file
    buffer = Buffer.read(s, "/Users/ss/Documents/sounds/Pmoog.wav");

    // Define a sampler synth
    SynthDef(\samplerSynth, { |out=0, bufnum, rate=1, amp=0.1, gate=1|
        var sig, env;
        env = EnvGen.kr(Env.adsr(0.01, 0.7, 1, 2.4), gate, doneAction: 2);
        sig = PlayBuf.ar(2, bufnum, rate * BufRateScale.kr(bufnum), loop: 0) * env * amp;
        Out.ar(out, sig);
    }).add;

    // Create a window for the keyboard
    ~win = Window("Sampler Keyboard with Chord Recording", Rect(100, 100, 1000, 400)).front;

    // Define note names and their corresponding chromatic scale degrees for two octaves
    ~notes = [\C, \Cs, \D, \Ds, \E, \F, \Fs, \G, \Gs, \A, \As, \B,
               \C, \Cs, \D, \Ds, \E, \F, \Fs, \G, \Gs, \A, \As, \B];
    ~scaleDegrees = (0..23);

    // Define keyboard mapping
    ~keyboardMap = Dictionary[
        $a -> 0, $w -> 1, $s -> 2, $e -> 3, $d -> 4, $f -> 5, $t -> 6, $g -> 7, $y -> 8, $h -> 9, $u -> 10, $j -> 11,
        $k -> 12, $o -> 13, $l -> 14, $p -> 15, $; -> 16, $' -> 17,
        $z -> 0, $x -> 2, $c -> 4, $v -> 5, $b -> 7, $n -> 9, $m -> 11, $, -> 12, $. -> 14, $/ -> 16
    ];

    // Array to store the sequence of played notes and chords with timing
    ~sequence = List[];

    // Timing capture flag
    ~capturingTime = false;

    // Dictionary to store active synths
    ~activeSynths = Dictionary.new;

    // Function to play a note
    ~playNote = { |degree|
        var adjustedDegree = degree + (currentOctave * 12);
        var rate = 2.pow(adjustedDegree / 12);  // Calculate playback rate
        var synth;

        // Stop the previous synth for this degree if it exists
        ~activeSynths[adjustedDegree].do({ |syn| syn.set(\gate, 0) });

        synth = Synth(\samplerSynth, [\bufnum, buffer, \rate, rate, \amp, 0.5]);
        ~activeSynths[adjustedDegree] = synth;

        chordNotes.add(adjustedDegree);

        if(~capturingTime, {
            var elapsedTime = Main.elapsedTime - startTime;
            if(chordNotes.size > 1, {
                ~sequence.add([chordNotes.asArray.sort, elapsedTime.round(0.001)]);
            }, {
                ~sequence.add([adjustedDegree, elapsedTime.round(0.001)]);
            });
        }, {
            if(chordNotes.size > 1, {
                ~sequence.add([chordNotes.asArray.sort, nil]);
            }, {
                ~sequence.add([adjustedDegree, nil]);
            });
        });

        // Update button state
        if(degree < 24, {
            ~buttons[degree].states = [[~notes[degree].asString, Color.white, Color.black]];
            AppClock.sched(0.2, {
                ~buttons[degree].states = [[~notes[degree].asString, Color.black, Color.white]];
                nil
            });
        });
    };

    // Function to stop a note
    ~stopNote = { |degree|
        var adjustedDegree = degree + (currentOctave * 12);
        ~activeSynths[adjustedDegree].do({ |syn| syn.set(\gate, 0) });
        ~activeSynths[adjustedDegree] = nil;
        chordNotes.remove(adjustedDegree);
    };

    // Create buttons for each note
    ~buttons = ~notes.collect({ |note, i|
        Button(~win, Rect(10 + (i * 40), 10, 35, 100))
            .states_([[note.asString, Color.black, Color.white]])
            .mouseDownAction_({ ~playNote.(i) })
            .mouseUpAction_({ ~stopNote.(i) });
    });

    // Create a text field to display the sequence
    ~seqDisplay = TextView(~win, Rect(10, 120, 980, 100))
        .string_("Played sequence: ")
        .editable_(false);

    // Create buttons for various actions
    Button(~win, Rect(10, 230, 100, 30))
        .states_([["Clear Sequence"]])
        .action_({
            ~sequence.clear;
            ~seqDisplay.string_("Played sequence: ");
        });

    Button(~win, Rect(120, 230, 100, 30))
        .states_([["Print Sequence"]])
        .action_({
            var noteArray, durArray;
            noteArray = ~sequence.collect({ |item| item[0] });
            durArray = ~sequence.collect({ |item, i|
                if(item[1].isNil, {
                    0.5  // Default duration if no timestamp
                }, {
                    if(i == 0, {
                        0.5  // Default duration for the first note/chord
                    }, {
                        var prevTime = ~sequence[i-1][1];
                        if(prevTime.isNil, {
                            0.5  // Default duration if previous timestamp is missing
                        }, {
                            (item[1] - prevTime).max(0.01)  // Ensure positive duration
                        });
                    });
                });
            });
            "Note/Chord Array:".postln;
            noteArray.postln;
            "Duration Array:".postln;
            durArray.postln;
            "Pbind pattern:".postln;
            ("Pbind(\\degree, " ++ noteArray.collect({|item| item.asArray}).asCompileString ++
             ", \\dur, " ++ durArray.asCompileString ++ ")").postln;
        });

    Button(~win, Rect(230, 230, 100, 30))
    .states_([["Play Sequence"]])
    .action_({
        Routine({
            var prevTime = 0;
            ~sequence.do({ |item|
                var degrees = item[0].asArray;
                var time = item[1];
                var synths;
                if(time.notNil, {
                    (time - prevTime).wait;
                    prevTime = time;
                }, {
                    0.5.wait;
                });
                synths = degrees.collect({ |degree|
                    var rate = 2.pow(degree / 12);  // Calculate playback rate
                    Synth(\samplerSynth, [\bufnum, buffer, \rate, rate, \amp, 0.5]);
                });
                AppClock.sched(0.2, { synths.do(_.set(\gate, 0)); nil });
            });
        }).play;
    });

    ~timingButton = Button(~win, Rect(340, 230, 150, 30))
        .states_([
            ["Start Timing Capture", Color.black, Color.green],
            ["Stop Timing Capture", Color.white, Color.red]
        ])
        .action_({ |but|
            if(but.value == 1, {
                ~capturingTime = true;
                startTime = Main.elapsedTime;
            }, {
                ~capturingTime = false;
            });
        });

    // Create buttons for octave shifting
    Button(~win, Rect(500, 230, 100, 30))
        .states_([["Octave Down"]])
        .action_({
            currentOctave = (currentOctave - 1).clip(-1, 7);
            ~updateOctaveDisplay.value;
        });

    Button(~win, Rect(610, 230, 100, 30))
        .states_([["Octave Up"]])
        .action_({
            currentOctave = (currentOctave + 1).clip(-1, 7);
            ~updateOctaveDisplay.value;
        });

    // Display current octave
    ~octaveDisplay = StaticText(~win, Rect(720, 230, 100, 30))
        .string_("Octave: 0")
        .align_(\center);

    ~updateOctaveDisplay = {
        ~octaveDisplay.string_("Octave: " ++ currentOctave);
    };

    // New button to activate/deactivate keyboard input
    Button(~win, Rect(830, 230, 150, 30))
        .states_([
            ["Activate Keyboard", Color.black, Color.green],
            ["Deactivate Keyboard", Color.white, Color.red]
        ])
        .action_({ |but|
            keyboardActive = but.value == 1;
            if(keyboardActive, {
                ~win.view.focus(true);
            });
        });

    // Update sequence display function
    ~updateSeqDisplay = {
        ~seqDisplay.string_("Played sequence: " ++ ~sequence.collect({ |item|
            var notes = item[0];
            var time = item[1];
            var noteStr = if(notes.isArray, {
                "[" ++ notes.collect(_.asString).join(", ") ++ "]"
            }, {
                notes.asString
            });
            if(time.isNil, {
                noteStr
            }, {
                noteStr ++ "@" ++ time.round(0.001).asString
            });
        }).join(", "));
    };

    // Set up a routine to periodically update the sequence display
    Routine({
        loop {
            ~updateSeqDisplay.();
            0.1.wait;
        }
    }).play(AppClock);

    // Add key responder
    ~win.view.keyDownAction = { |view, char, modifiers, unicode, keycode|
        if(keyboardActive, {
            var degree = ~keyboardMap[char.toLower];
            if(degree.notNil, {
                ~playNote.(degree);
            });
            // Number keys for octave selection
            if(char.isDecDigit, {
                var num = char.digit;
                currentOctave = num - 2;  // Shift range to be from -1 to 7
                currentOctave = currentOctave.clip(-1, 7);  // Limit range
                ~updateOctaveDisplay.value;
            });
        });
    };

    ~win.view.keyUpAction = { |view, char, modifiers, unicode, keycode|
        if(keyboardActive, {
            var degree = ~keyboardMap[char.toLower];
            if(degree.notNil, {
                ~stopNote.(degree);
            });
        });
    };
};

// Execute the function immediately
~createKeyboard.value;
)

code description

This is the second Keyboard. This one is setup for samples . Activating the Keyboard button allows you to play the keyboard with your computer Keyboard (Mac, not sure if Windows works). Number buttons change octaves. Start Time Capture records little phrases including Chords. Just copy paste your degree array and dur array into your Pattern setup . Do math in the array to make it work with your Key. It is setup for the Chromatic scale.

Just replace the path with your sample .
You must setup your sample to be Middle C so it tracks properly. Here is how in Audacity. 
If you have a sample but don't know its exact frequency, you can use Audacity to analyze and adjust it. Here's a step-by-step process to prepare your sample for use in the SuperCollider keyboard app:

Determine the sample's frequency:

Open your sample in Audacity.
Select a stable portion of the note (avoid the attack and decay).
Go to Analyze > Plot Spectrum.
In the spectrum analysis window, look for the highest peak. This is likely your fundamental frequency.
Note down this frequency.

Adjust the sample to C4 (261.63 Hz):

Select the entire audio sample.
Go to Effect > Change Pitch.
In the Change Pitch window, you'll see "Frequency (Hz)" fields.
Enter the frequency you found in step 1 in the "from" field.
Enter 261.63 in the "to" field.
Click "OK" to apply the change.

Verify the adjustment:

After changing the pitch, use the Plot Spectrum tool again to confirm the new fundamental frequency is close to 261.63 Hz.

Fine-tune if necessary:

If it's slightly off, you can make small adjustments using the Change Pitch effect again.

Prepare the sample as described earlier:

Trim, normalize, loop (if desired), and apply fades.

Export the adjusted sample:

Go to File > Export > Export as WAV.

use markdown for formating

category tags comma separated, i.g. "wild, siren" (do not enter default SC class names, please)

ancestor(s) comma separated identificators, i.g. "1-C,1-1,1-4M,1-x"

Private? the code will be accessible by direct url and not visible in public activity

comment of change