Create app.py

app.py

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+import gradio as gr
+from gtts import gTTS
+import pdfplumber
+import re
+from pydub import AudioSegment
+
+# 🔹 ভাষা detect
+def detect_lang(text):
+    if re.search(r'[\u0980-\u09FF]', text):
+        return "bn"
+    else:
+        return "en"
+
+
+def mixed_text_to_speech(text):
+    if not text.strip():
+        return None
+    # টেক্সটকে বাংলা/ইংরেজি ব্লকে ভাগ করা
+    chunks = re.findall(r'[\u0980-\u09FF]+|[a-zA-Z0-9 ,.!?]+', text)
+    combined = AudioSegment.silent(duration=500)  # শুরুতে সামান্য pause
+
+    for i, chunk in enumerate(chunks):
+        lang = detect_lang(chunk)
+        tts = gTTS(text=chunk, lang=lang)
+        filename = f"chunk_{i}.mp3"
+        tts.save(filename)
+        audio = AudioSegment.from_file(filename, format="mp3")
+        combined += audio + AudioSegment.silent(duration=300)  #
+
+    output_path = "output.mp3"
+    combined.export(output_path, format="mp3")
+    return output_path
+
+
+    
+# 🔹 PDF থেকে টেক্সট → Speech
+def pdf_to_speech(pdf_file):
+    if pdf_file is None:
+        return None
+
+    text = ""
+    with pdfplumber.open(pdf_file.name) as pdf:
+        for page in pdf.pages:
+            page_text = page.extract_text()
+            if page_text:
+                text += page_text + "\n"
+
+    if not text.strip():
+        return None
+
+    return mixed_text_to_speech(text)
+
+# 🔹 Gradio UI
+with gr.Blocks() as demo:
+    gr.Markdown("## 🗣️ Mixed Language TTS (Bangla + English + PDF)")
+
+    with gr.Tab("🔤 Text to Speech"):
+        text_input = gr.Textbox(label="Enter Bangla + English text")
+        text_output = gr.Audio(label="Generated Voice", type="filepath")
+        text_btn = gr.Button("🎙️ Convert")
+        text_btn.click(fn=mixed_text_to_speech, inputs=text_input, outputs=text_output)
+
+    with gr.Tab("📘 PDF to Speech"):
+        pdf_input = gr.File(label="Upload PDF", file_types=[".pdf"])
+        pdf_output = gr.Audio(label="Generated Voice", type="filepath")
+        pdf_btn = gr.Button("📖 Convert PDF")
+        pdf_btn.click(fn=pdf_to_speech, inputs=pdf_input, outputs=pdf_output)
+
+demo.launch(show_error=True)
+    
+
+
+
+
+
+
+
+
+