Tuning: CFG 4.0; tighten steps (5-16) and speed (0.8-1.2) slider ranges

app.py

@@ -592,7 +592,7 @@ class BlueTTS:
         style: Style,
         total_step: int = 8,
         speed: float = 0.95,
-        cfg_scale: float = 3.5,
+        cfg_scale: float = 4.0,
         silence_duration: float = 0.15,
         seed: int = 42,
         phonemize: bool = True,
@@ -861,7 +861,7 @@ def synthesize_text(text: str, voice: str, lang: str, steps: int, speed: float,
         style = VOICE_STYLES[voice]
     wav, sr = TTS.synthesize(
         expand_numbers(normalize_common_text(text), lang=lang), lang=lang, style=style,
-        total_step=int(steps), speed=float(speed), cfg_scale=3.5,
+        total_step=int(steps), speed=float(speed), cfg_scale=4.0,
         pace_blend=0.0,
     )
     wav = normalize_generated_audio(np.asarray(wav).squeeze())
@@ -1033,8 +1033,8 @@ with gr.Blocks(title="BlueTTS V2 — Multilingual TTS") as demo:
                     label="Voice", elem_classes="ctrl-voice",
                 )
             with gr.Row(elem_classes="ctrl-row2"):
-                steps_input = gr.Slider(2, 32, 8, step=1, label="Quality (steps)", elem_classes="ctrl-steps")
-                speed_input = gr.Slider(0.5, 2.0, 0.95, step=0.05, label="Speed", elem_classes="ctrl-speed")
+                steps_input = gr.Slider(5, 16, 8, step=1, label="Quality (steps)", elem_classes="ctrl-steps")
+                speed_input = gr.Slider(0.8, 1.2, 0.95, step=0.05, label="Speed", elem_classes="ctrl-speed")
 
         with gr.Column(elem_classes="ref-panel"):
             gr.HTML(