Create piper_engine.py

piper_engine.py

@@ -0,0 +1,39 @@
+import subprocess
+import tempfile
+
+
+def piper_tts(
+    text,
+    model_path,
+    config_path,
+    speed=1.0,
+    pitch=1.0,
+):
+
+    # Output wav file
+    with tempfile.NamedTemporaryFile(
+        delete=False,
+        suffix=".wav"
+    ) as f:
+        out_path = f.name
+
+    cmd = [
+        "piper",
+        "--model", model_path,
+        "--config", config_path,
+        "--output_file", out_path,
+        "--length_scale", str(1 / speed),
+        "--pitch_scale", str(pitch),
+    ]
+
+    process = subprocess.Popen(
+        cmd,
+        stdin=subprocess.PIPE,
+        stdout=subprocess.PIPE,
+        stderr=subprocess.PIPE,
+        text=True,
+    )
+
+    process.communicate(text)
+
+    return out_path