mwinter/compact_sets
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Add octave offset for play-freq, adjustable via UI input

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This commit is contained in:
Michael Winter 2026-04-01 18:39:13 +02:00
parent 990e59b1d6
commit 2a17339edc
2 changed files with 6 additions and 2 deletions
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5
webapp/path_navigator.html
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@ -281,6 +281,8 @@
<button id="loadFileBtn">Load</button> <button id="loadFileBtn">Load</button>
<span style="margin-left: 20px;">Fundamental (Hz):</span> <span style="margin-left: 20px;">Fundamental (Hz):</span>
<input type="number" id="fundamentalInput" value="110" style="width: 60px;"> <input type="number" id="fundamentalInput" value="110" style="width: 60px;">
<span style="margin-left: 15px;">Octave:</span>
<input type="number" id="octaveInput" value="2" style="width: 40px;">
</div> </div>
<div class="controls"> <div class="controls">
@ -466,7 +468,8 @@
headers: {'Content-Type': 'application/json'}, headers: {'Content-Type': 'application/json'},
body: JSON.stringify({ body: JSON.stringify({
chordIndex: chordIndex, chordIndex: chordIndex,
nodeIndex: localId nodeIndex: localId,
octave: parseInt(document.getElementById('octaveInput').value) || 0
}) })
}).then(r => r.json()).then(data => { }).then(r => r.json()).then(data => {
console.log('Playing on', destination + ':', data.frequency.toFixed(2), 'Hz on voice', data.voice); console.log('Playing on', destination + ':', data.frequency.toFixed(2), 'Hz on voice', data.voice);

3
webapp/server.py
View file

@ -99,6 +99,7 @@ def play_freq():
data = request.json data = request.json
chord_index = data.get("chordIndex") chord_index = data.get("chordIndex")
node_index = data.get("nodeIndex") node_index = data.get("nodeIndex")
octave = data.get("octave", 0)
if chord_index < 0 or chord_index >= len(chords): if chord_index < 0 or chord_index >= len(chords):
return jsonify({"error": "Invalid chord index"}), 400 return jsonify({"error": "Invalid chord index"}), 400
@ -109,7 +110,7 @@ def play_freq():
pitch = chord[node_index] pitch = chord[node_index]
fraction = Fraction(pitch.get("fraction", "1")) fraction = Fraction(pitch.get("fraction", "1"))
frequency = fundamental * float(fraction) frequency = fundamental * float(fraction) * (2**octave)
voice = node_index + 1 # 1-indexed voice = node_index + 1 # 1-indexed
osc_sender.send_single(frequency, voice) osc_sender.send_single(frequency, voice)