Add piper hello world example with resample to 24kHz

.gitignore

@@ -1,3 +1,7 @@
 *.pyc
+*.wav
+*.onnx
+*.onnx.json
+
 venv/
 text_to_speech/models

.vscode/launch.json

@@ -0,0 +1,16 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        
+        {
+            "name": "Python Debugger: Current File",
+            "type": "debugpy",
+            "request": "launch",
+            "program": "${file}",
+            "console": "integratedTerminal"
+        }
+    ]
+}

readme.md

@@ -3,4 +3,8 @@
 sudo apt install liblc3-tools
 
 use python3.9
-pip install piper-tts soundfile librosa
+pip install piper-tts soundfile librosa
+
+# Piper update voices
+
+piper --update-voices -m en_US-lessac-medium

text_to_speech/piper_welcome.sh

@@ -1,6 +1,13 @@
 SCRIPT_DIR=$(dirname "$(readlink -f "$BASH_SOURCE")")
+START_DIR=$(pwd)
+
+cd $SCRIPT_DIR
 
 echo 'Welcome to the world of speech synthesis!' | piper \
   --model en_US-lessac-medium \
   --output_file $SCRIPT_DIR/welcome.wav \
-  --download-dir $SCRIPT_DIR/models
+  #--download-dir $SCRIPT_DIR/models \
+  #--data-dir $SCRIPT_DIR/models
+
+
+cd $START_DIR

text_to_speech/resample.py

@@ -4,16 +4,15 @@ import librosa
 import soundfile as sf
 
 
-def resample():
+def resample(target_rate=int(24e3)):
     # Load the original audio file
-    audio, rate = librosa.load('welcome.wav')
+    audio, rate = librosa.load('text_to_speech/welcome.wav')
 
     # Convert the sample rate to 24 kHz
-    resampled_rate = int(rate * 24 / 22050)
-    resampled_audio = librosa.resample(audio, rate, resampled_rate)
+    resampled_audio = librosa.resample(audio, orig_sr=rate, target_sr=target_rate)
 
     # Save the resampled audio as a new .wav file
-    sf.write('welcome_resampled.wav', resampled_audio, resampled_rate)
+    sf.write('text_to_speech/welcome_resampled.wav', resampled_audio, target_rate)
 
 if __name__ == "__main__":
     resample()