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Feature-Search, UI, audio optimization, small fixes #2

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355c153
Fix preset JSON mismatch, category indexing and slider
EpicBunty Mar 8, 2026
391c4bc
Added preset search functionality and improved UI
EpicBunty Mar 9, 2026
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1 change: 1 addition & 0 deletions BinauralLab.bat
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Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
python BinauralLab.py
148 changes: 116 additions & 32 deletions BinauralLab.py
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Expand Up @@ -77,23 +77,24 @@ class BinauralApp:
"Gamma Consciousness":{"carrier": 300.0, "beat":45.0,"desc": "Gamma for expanded awareness."},
"Focus 49": {"carrier": 210.0, "beat":49.0,"desc": "Edge of mapped human territory."}
}



CATEGORIES = {
"Delta Waves (0.5–4 Hz)": list(DEFAULT_PRESETS.keys())[:7],
"Theta Waves (4–8 Hz)": list(DEFAULT_PRESETS.keys())[7:18],
"Alpha Waves (8–12 Hz)": list(DEFAULT_PRESETS.keys())[18:27],
"Beta Waves (13–30 Hz)": list(DEFAULT_PRESETS.keys())[27:37],
"Gamma Waves (30–50 Hz)": list(DEFAULT_PRESETS.keys())[37:41],
"Alpha Waves (8–12 Hz)": list(DEFAULT_PRESETS.keys())[18:28],
"Beta Waves (13–30 Hz)": list(DEFAULT_PRESETS.keys())[28:43],
"Gamma Waves (30–50 Hz)": list(DEFAULT_PRESETS.keys())[43:51],
}

SAMPLE_RATE = 44_100
BLOCKSIZE = 1_024

# ─────────────────────────── Init ────────────────────────────
def __init__(self, master: tk.Tk):
self.master = master
master.title("Binaural Beat Lab")
master.geometry("900x780")
master.geometry("1280x1080")

self.stream = None
self.left_phase = self.right_phase = 0.0
Expand All @@ -106,18 +107,35 @@ def __init__(self, master: tk.Tk):
self._load_presets()
self._build_ui()
self._init_plot()
self._build_preset_tree()
self._refresh_ui()
self.master.after(100, self._update_plot)

self.carrier_var.trace_add("write", lambda *_: self._refresh_ui())
self.beat_var.trace_add("write", lambda *_: self._refresh_ui())

# ─────────── Dynamic Categories ────────────
# def get_band(beat):
# if beat < 4:
# return "Delta Waves (0.5–4 Hz)"
# elif beat < 8:
# return "Theta Waves (4–8 Hz)"
# elif beat < 13:
# return "Alpha Waves (8–13 Hz)"
# elif beat < 30:
# return "Beta Waves (13–30 Hz)"
# else:
# return "Gamma Waves (30–50 Hz)"

# ─────────── Load presets & personal resonances ────────────
def _load_presets(self):
if not os.path.exists(self.PRESETS_FILE):
json.dump(self.DEFAULT_PRESETS, open(self.PRESETS_FILE, "w"), indent=4)
self.presets = json.load(open(self.PRESETS_FILE, "r"))

# To
for name, preset in self.DEFAULT_PRESETS.items():
if name not in self.presets:
self.presets[name] = preset
if os.path.exists(USER_RES_FILE):
try:
data = json.load(open(USER_RES_FILE, "r"))
Expand Down Expand Up @@ -153,14 +171,14 @@ def _build_ui(self):

# Carrier
ttk.Label(main, text="Carrier (Hz)").grid(row=2, column=0, sticky="w", **pad)
ttk.Scale(main, from_=0.001, to=200, variable=self.carrier_var,
tk.Scale(main, from_=0.001, to=500,resolution=0.001, variable=self.carrier_var,
orient="horizontal").grid(row=2, column=1, sticky="ew", **pad)
ttk.Entry(main, textvariable=self.carrier_var, width=8
).grid(row=2, column=2, sticky="e", **pad)

# Beat
ttk.Label(main, text="Beat Δf (Hz)").grid(row=3, column=0, sticky="w", **pad)
ttk.Scale(main, from_=0.001, to=50, variable=self.beat_var,
tk.Scale(main, from_=0.001, to=50, resolution=0.001, variable=self.beat_var,
orient="horizontal").grid(row=3, column=1, sticky="ew", **pad)
ttk.Entry(main, textvariable=self.beat_var, width=8
).grid(row=3, column=2, sticky="e", **pad)
Expand Down Expand Up @@ -198,16 +216,27 @@ def _build_ui(self):
ttk.Button(af, text="⬇ Export", command=self.export_audio
).pack(side="left", **pad)

# Search presets (bonus feature)
ttk.Label(main, text="Search Presets").grid(row=8, column=0, sticky="w", **pad)

self.search_var = tk.StringVar()
search_entry = ttk.Entry(main, textvariable=self.search_var)
search_entry.grid(row=8, column=1, columnspan=3, sticky="ew", **pad)

self.search_var.trace_add("write", lambda *_: self._search_presets())
search_entry.focus()
self.master.bind("<Control-f>", lambda e: search_entry.focus())
search_entry.bind("<Escape>", lambda e: self.search_var.set(""))

# Preset tree
ttk.Label(main, text="Load Preset").grid(row=8, column=0, sticky="nw", **pad)
tree_frame = ttk.Frame(main); tree_frame.grid(row=8, column=1, columnspan=3,
ttk.Label(main, text="Load Preset").grid(row=9, column=0, sticky="nw", **pad)
tree_frame = ttk.Frame(main); tree_frame.grid(row=9, column=1, columnspan=3,
sticky="nsew", **pad)
tree_frame.rowconfigure(0, weight=1); tree_frame.columnconfigure(0, weight=1)

self.tree = ttk.Treeview(tree_frame, columns=("Desc",), show="tree headings",
selectmode="browse")
self.tree.heading("#0", text="Preset"); self.tree.heading("Desc", text="Description")
self.tree.column("#0", width=200); self.tree.column("Desc", width=400)
self.tree = ttk.Treeview(tree_frame, columns=("Beat","Carrier","Desc"), show="tree headings",selectmode="browse")
self.tree.heading("#0", text="Preset");self.tree.heading("Beat", text="Beat (Hz)");self.tree.heading("Carrier", text="Carrier (Hz)"); self.tree.heading("Desc", text="Description") # Added Beat and Carrier columns to treeview
self.tree.column("#0", width=200); self.tree.column("Beat", width=100); self.tree.column("Carrier", width=100); self.tree.column("Desc", width=400)
self.tree.tag_configure("highlight", background="lightyellow") # highlight style

vsb = ttk.Scrollbar(tree_frame, orient="vertical", command=self.tree.yview)
Expand All @@ -217,12 +246,49 @@ def _build_ui(self):

# Plot frame
self.viz_frame = ttk.Frame(main)
self.viz_frame.grid(row=9, column=0, columnspan=4, sticky="nsew", **pad)
self.viz_frame.grid(row=10, column=0, columnspan=4, sticky="nsew", **pad)

ttk.Label(main, text="Binaural beats work best with stereo headphones.",
font=("Arial", 9, "italic"), foreground="gray"
).grid(row=10, column=0, columnspan=4, pady=(2, 0))
).grid(row=11, column=0, columnspan=4, pady=(2, 0))

# ────────────────────────── Preset search ──────────────────────────
def _search_presets(self, *_):
query = self.search_var.get().strip().lower()

# If search box is empty, restore the original tree view
if not query:
self._build_preset_tree()
return

# Clear the tree and prepare to rebuild it with only matching presets
self.tree.delete(*self.tree.get_children())
self.tree_items = {}

# Iterate through all categories and their presets
for category, names in self.CATEGORIES.items():
# Find presets in this category that match the query
matches = [
name for name in names
if name in self.presets and (
query in name.lower()
or query in self.presets[name].get("desc", "").lower()
or query in str(self.presets[name].get("beat", ""))
)
]
# Only add the category if it has matching presets
if not matches:
continue
parent = self.tree.insert("", "end", text=category, open=True)
for name in matches:
p = self.presets[name]
item = self.tree.insert(
parent, "end", text=name,
values=(p.get("beat", ""), p.get("carrier", ""), p.get("desc", ""))
)
self.tree_items[name] = item


# ───────────────────────── Plotting ──────────────────────────
def _init_plot(self):
self.fig = Figure(figsize=(6, 2.5), dpi=100)
Expand All @@ -246,8 +312,8 @@ def _update_plot(self):
window = min(0.5, max(0.05, 2.0 / b))
t = np.linspace(0, window, int(self.SAMPLE_RATE * window), endpoint=False)
c = self.carrier_var.get()
y1 = np.sin(2 * np.pi * c * t)
y2 = np.sin(2 * np.pi * (c + b) * t)
y1 = np.sin(2 * np.pi * (c - b/2) * t)
y2 = np.sin(2 * np.pi * (c + b/2) * t)
env = np.abs(y1 - y2) / 2

self.line1.set_data(t, y1); self.line2.set_data(t, y2)
Expand Down Expand Up @@ -275,26 +341,40 @@ def _refresh_ui(self):
)

# ===== REST OF UI REFRESH UNCHANGED =====
for name, item in self.tree_items.items():
if name == self.selected_preset:
self.tree.item(item, tags=("highlight",))
else:
self.tree.item(item, tags=())

def _build_preset_tree(self):

self.tree.delete(*self.tree.get_children())
self.tree_items = {} # store item IDs for each preset

for cat, names in self.CATEGORIES.items():
parent = self.tree.insert("", "end", text=cat, open=True)

for name in names:
if name in self.presets:
desc = self.presets[name].get("desc", "")
tags = ("highlight",) if name == self.selected_preset else ()
self.tree.insert(parent, "end", text=name,
values=(desc,), tags=tags)
beat = self.presets[name].get("beat", "")
carrier = self.presets[name].get("carrier", "")
item = self.tree.insert(parent, "end", text=name, values=(beat, carrier, desc))
self.tree_items[name] = item

# Add any custom presets
# Add custom presets
custom = [n for n in self.presets if n not in self.DEFAULT_PRESETS]

if custom:
parent = self.tree.insert("", "end", text="Custom Sounds", open=True)

for name in custom:
desc = self.presets[name].get("desc", "")
tags = ("highlight",) if name == self.selected_preset else ()
self.tree.insert(parent, "end", text=name,
values=(desc,), tags=tags)

beat = self.presets[name].get("beat", "")
carrier = self.presets[name].get("carrier", "")
item = self.tree.insert(parent, "end", text=name, values=(beat, carrier, desc))
self.tree_items[name] = item

# ──────────────── Audio callback & stream ────────────────
def start_audio(self):
Expand All @@ -313,15 +393,17 @@ def stop_audio(self):
def _audio_callback(self, outdata, frames, *_):
c, b = self.carrier_var.get(), self.beat_var.get()
v = self.volume_var.get()
d1 = 2*np.pi*c / self.SAMPLE_RATE
d2 = 2*np.pi*(c+b) / self.SAMPLE_RATE
left_freq = max(0.001, c - b/2)
right_freq = max(0.001, c + b/2)
d1 = 2*np.pi*left_freq / self.SAMPLE_RATE
d2 = 2*np.pi*right_freq / self.SAMPLE_RATE
idx = np.arange(frames)
p1 = self.left_phase + d1*idx
p2 = self.right_phase + d2*idx
outdata[:] = (np.stack([np.sin(p1), np.sin(p2)], axis=-1) * v).astype(np.float32)
self.left_phase = (p1[-1] + d1) % (2*np.pi)
self.right_phase = (p2[-1] + d2) % (2*np.pi)

# ───────────────────────── Preset CRUD ─────────────────────────
def save_preset(self):
name = self.preset_entry.get().strip()
Expand All @@ -335,6 +417,7 @@ def save_preset(self):
}
self.selected_preset = name
json.dump(self.presets, open(self.PRESETS_FILE, "w"), indent=4)
self._build_preset_tree()
self._refresh_ui()
messagebox.showinfo("Saved", f"Preset '{name}' saved.")

Expand All @@ -346,6 +429,7 @@ def delete_preset(self):
self.presets.pop(name, None); self.selected_preset = None
self.preset_entry.delete(0, tk.END)
json.dump(self.presets, open(self.PRESETS_FILE, "w"), indent=4)
self._build_preset_tree()
self._refresh_ui()
messagebox.showinfo("Deleted", f"Preset '{name}' deleted.")

Expand All @@ -366,8 +450,8 @@ def export_audio(self):
if not dur or dur <= 0: return
fs = self.SAMPLE_RATE
t = np.linspace(0, dur, int(fs * dur), endpoint=False)
c, b = self.carrier_var.get(), self.beat_var.get()
left = np.sin(2*np.pi*c*t)
c, b = self.carrier_var.get(), (self.beat_var.get()/2)
left = np.sin(2*np.pi*(c-b)*t)
right = np.sin(2*np.pi*(c+b)*t)
data = np.int16(np.stack([left, right], axis=-1) /
np.max(np.abs(np.stack([left, right], axis=-1))) * 32767)
Expand Down
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