added requirement.txt

INSTALL.md

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+# Installation (Windows)
+
+Install the Python requirements and pick the correct `torch` wheel for your system.
+
+1) Upgrade pip and install pinned packages (non-torch):
+
+```bash
+python -m pip install --upgrade pip
+pip install -r requirements.txt
+```
+
+1) Install `torch` separately so you can pick the wheel that matches your CUDA/CPU setup.
+
+- CPU-only (Windows):
+
+```bash
+pip install "torch==2.2.2+cpu" --index-url https://download.pytorch.org/whl/cpu
+```
+
+- CUDA (example for CUDA 12.1; pick the matching CUDA version for your system):
+
+```bash
+pip install "torch==2.2.2+cu121" --index-url https://download.pytorch.org/whl/cu121
+```
+
+If you are unsure which CUDA version you have, run `nvidia-smi` in a command
+prompt (if you have an NVIDIA GPU). If you want, tell me your CUDA version and
+I can add the exact install line.
+
+1) Optional: verify the environment with the smoke test:
+
+```bash
+python test_requirements.py
+```
+
+Notes:
+
+- The `requirements.txt` contains pinned versions for non-torch packages and
+  leaves `torch` unpinned so you can choose the correct wheel for your system.
+- If you want me to pin exact `torch` builds for a specific CUDA version, tell
+  me the CUDA version (e.g., `cu121`, `cu118`, or `cpu`).

requirements.txt

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+# Pinned non-torch packages (change versions if you need newer/stable ones)
+gradio==3.60.1
+transformers==4.35.2
+librosa==0.10.0
+safetensors==0.3.2
+accelerate==0.20.3
+soundfile==0.12.1
+
+# NOTE: `torch` should be installed via the official PyTorch wheels that match
+# your CUDA version (or CPU-only). See the README.md for Windows CPU/CUDA
+# install commands and pick the appropriate wheel. To keep this file simple
+# we do not pin `torch` here.
+torch

test_requirements.py

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+import importlib
+import sys
+
+packages = [
+    ('gradio', 'gradio'),
+    ('torch', 'torch'),
+    ('librosa', 'librosa'),
+    ('transformers', 'transformers'),
+    ('safetensors', 'safetensors'),
+    ('accelerate', 'accelerate'),
+    ('soundfile', 'soundfile'),
+]
+
+success = True
+for name, mod in packages:
+    try:
+        m = importlib.import_module(mod)
+        v = getattr(m, '__version__', 'unknown')
+        print(f'{name}: OK (version={v})')
+    except Exception as e:
+        success = False
+        print(f'{name}: FAIL -> {e}')
+
+# Extra torch checks
+try:
+    import torch
+    print('torch.cuda.is_available():', torch.cuda.is_available())
+    print('torch.__version__:', getattr(torch, '__version__', 'unknown'))
+except Exception:
+    pass
+
+if not success:
+    print('\nSome imports failed. Re-run the install commands in INSTALL.md or ask for help.')
+    sys.exit(1)
+
+print('\nAll imports succeeded (where present).')