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- #!/usr/bin/env python3
- import simpleaudio as sa
- import numpy as np
- import tkinter as tk
- from tkinter import ttk
- # sudo apt-get install -y python3-dev libasound2-dev
- notes = {
- "C": 261.63, "C#": 277.18, "D": 293.66, "D#": 311.13,
- "E": 329.63, "F": 349.23, "F#": 369.99, "G": 392.00,
- "G#": 415.30, "A": 440.00, "A#": 466.16, "B": 493.88
- }
- buffer = ""
- def play_note(freq, duration=0.3):
- fs = 44100
- t = np.linspace(0, duration, int(fs * duration), False)
- pitch = pitch_slider.get()
- vol = vol_slider.get() / 100.0
- ch = int(ch_slider.get())
- bps = int(bp_slider.get())
- freq *= pitch
- wave = 0.5 * np.sin(2 * np.pi * freq * t)
- wave = wave * (vol * 32767)
- audio = wave.astype(np.int16)
- if ch == 2:
- audio = np.column_stack((audio, audio)).flatten()
- sa.play_buffer(audio, ch, bps, fs).wait_done()
- def on_key(event):
- global buffer
- char = event.char.upper()
- if event.keysym == "Return":
- note = buffer.strip()
- if note in notes:
- play_note(notes[note])
- status.set(f"Played: {note}")
- else:
- status.set(f"Unknown: {note}")
- buffer = "" # Clear for next scan
- elif char.isalnum() or char in "#":
- buffer += char
- # === GUI ===
- root = tk.Tk()
- root.title("Note Player (Barcode Ready)")
- main = ttk.Frame(root, padding=10)
- main.grid()
- # Volume
- ttk.Label(main, text="Volume (%)").grid(column=0, row=0, sticky="w")
- vol_slider = ttk.Scale(main, from_=0, to=100, orient="horizontal")
- vol_slider.set(50)
- vol_slider.grid(column=1, row=0, columnspan=2, sticky="ew")
- # Channels
- ttk.Label(main, text="Channels (1=Mono, 2=Stereo)").grid(column=0, row=1, sticky="w")
- ch_slider = tk.Scale(main, from_=1, to=2, resolution=1, orient="horizontal")
- ch_slider.set(1)
- ch_slider.grid(column=1, row=1, columnspan=2, sticky="ew")
- # Bits per sample
- ttk.Label(main, text="Bits per Sample (1–4)").grid(column=0, row=2, sticky="w")
- bp_slider = tk.Scale(main, from_=1, to=4, resolution=1, orient="horizontal")
- bp_slider.set(2)
- bp_slider.grid(column=1, row=2, columnspan=2, sticky="ew")
- # Pitch bend
- ttk.Label(main, text="Pitch Bend (0.5–2.0)").grid(column=0, row=3, sticky="w")
- pitch_slider = tk.Scale(main, from_=0.5, to=2.0, resolution=0.01, digits=4,
- orient="horizontal", length=200)
- pitch_slider.set(1.0)
- pitch_slider.grid(column=1, row=3, columnspan=2, sticky="ew")
- # Status
- status = tk.StringVar()
- ttk.Label(main, textvariable=status, foreground="blue").grid(column=0, row=4, columnspan=3, sticky="w")
- main.columnconfigure(1, weight=1)
- # Bind keys globally
- root.bind_all("<Key>", on_key)
- root.mainloop()
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