99 lines
3.6 KiB
Python
99 lines
3.6 KiB
Python
import numpy as np
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import sounddevice as sd
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from scipy.io.wavfile import write
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import tkinter as tk
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from tkinter import ttk, messagebox
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# 脳波と周波数差
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brainwave_freqs = {
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"Delta (深い睡眠)": 2,
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"Theta (瞑想・創造)": 6,
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"Alpha (リラックス・集中)": 10,
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"Beta (活動・思考)": 20,
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"Gamma (高度認知)": 40
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}
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def generate_holophonic_binaural(base_freq, beat_freq, duration, volume, holophonic, sample_rate=44100):
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t = np.linspace(0, duration, int(sample_rate * duration), endpoint=False)
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left = np.sin(2 * np.pi * base_freq * t)
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right = np.sin(2 * np.pi * (base_freq + beat_freq) * t)
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if holophonic:
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# 音が左右に揺れ動くパン効果をつける
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pan = 0.5 * (1 + np.sin(2 * np.pi * 0.2 * t)) # 0.2Hzで左右に揺れる
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left *= (1 - pan)
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right *= pan
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stereo = np.stack([left, right], axis=1)
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return (stereo * volume).astype(np.float32), sample_rate
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def play_sound():
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selection = combo.get()
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if selection not in brainwave_freqs:
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messagebox.showerror("エラー", "脳波タイプを選択してください。")
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return
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stereo, sr = generate_holophonic_binaural(
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base_freq=base_freq_slider.get(),
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beat_freq=brainwave_freqs[selection],
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duration=duration_slider.get(),
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volume=volume_slider.get(),
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holophonic=bool(holophonic_var.get())
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)
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sd.play(stereo, samplerate=sr)
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sd.wait()
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def save_wav():
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selection = combo.get()
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if selection not in brainwave_freqs:
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messagebox.showerror("エラー", "脳波タイプを選択してください。")
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return
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stereo, sr = generate_holophonic_binaural(
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base_freq=base_freq_slider.get(),
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beat_freq=brainwave_freqs[selection],
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duration=duration_slider.get(),
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volume=volume_slider.get(),
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holophonic=bool(holophonic_var.get())
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)
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suffix = "_holo" if holophonic_var.get() else ""
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filename = f"{selection.split()[0]}_{base_freq_slider.get()}Hz_{duration_slider.get()}s{suffix}.wav"
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write(filename, sr, (stereo * 32767).astype(np.int16))
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messagebox.showinfo("保存完了", f"{filename} を保存しました。")
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# GUI構築
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root = tk.Tk()
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root.title("ホロフォニック・バイノーラルビートジェネレーター")
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root.geometry("520x460")
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tk.Label(root, text="脳波を選択:", font=("Arial", 13)).pack(pady=5)
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combo = ttk.Combobox(root, values=list(brainwave_freqs.keys()), font=("Arial", 12), state="readonly")
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combo.pack(pady=5)
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tk.Label(root, text="ベース周波数（Hz）:", font=("Arial", 11)).pack()
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base_freq_slider = tk.Scale(root, from_=100, to=1000, orient="horizontal", resolution=10)
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base_freq_slider.set(400)
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base_freq_slider.pack()
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tk.Label(root, text="音量（0.0〜1.0）:", font=("Arial", 11)).pack()
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volume_slider = tk.Scale(root, from_=0.0, to=1.0, resolution=0.01, orient="horizontal")
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volume_slider.set(0.5)
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volume_slider.pack()
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tk.Label(root, text="再生時間（秒）:", font=("Arial", 11)).pack()
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duration_slider = tk.Scale(root, from_=5, to=60, orient="horizontal")
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duration_slider.set(10)
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duration_slider.pack()
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# ホロフォニックON/OFF
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holophonic_var = tk.IntVar()
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tk.Checkbutton(root, text="ホロフォニック効果を有効にする（左右パンニング）", variable=holophonic_var).pack(pady=10)
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frame = tk.Frame(root)
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frame.pack(pady=15)
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tk.Button(frame, text="▶ 再生", command=play_sound, width=15).pack(side="left", padx=10)
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tk.Button(frame, text="💾 保存（.wav）", command=save_wav, width=15).pack(side="right", padx=10)
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root.mainloop()
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