Added support for a-law audios to be able to use audios from Barrayar.

cli-client/helpers/audio_importer.py

@@ -1,11 +1,24 @@
+import os
+import subprocess
 import wave
 
+def preprocess_audio_file_to_pcm(audio_file: str):
+    tmp_audio_file = "./" + os.path.basename(audio_file) + "_tmp.wav"
+    command = "sox " + audio_file + " -e signed-integer " + tmp_audio_file
+    subprocess.run(command.split())
+    return tmp_audio_file
+
+
+def remove_pcm_audio_file(audio_file: str):
+    os.remove(audio_file)
+
 
 class AudioImporter:
     def __init__(self, audio_file: str):
-        with open(audio_file, "rb") as wav_file:
+        tmp_audio_file = preprocess_audio_file_to_pcm(audio_file)
+        with open(tmp_audio_file, "rb") as wav_file:
             wav_data = wave.open(wav_file)
             self.sample_rate = wav_data.getframerate()
             self.audio = wav_data.readframes(wav_data.getnframes())
             wav_data.close()
-
+        remove_pcm_audio_file(tmp_audio_file)