Add piper hello world example with resample to 24kHz

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()