from google.cloud import texttospeech client = texttospeech.TextToSpeechClient() text = "អត្ថបទវែងរបស់អ្នក..." # your long Khmer text
synthesis_input = texttospeech.SynthesisInput(text=text) voice = texttospeech.VoiceSelectionParams( language_code="km-KH", name="km-KH-Standard-A" ) audio_config = texttospeech.AudioConfig( audio_encoding=texttospeech.AudioEncoding.MP3 )
response = client.synthesize_speech( input=synthesis_input, voice=voice, audio_config=audio_config )