update Audio param to sources

Signed-off-by: Elena Rastorgueva <erastorgueva@nvidia.com>

app.py

@@ -275,8 +275,8 @@ with gr.Blocks(title="NeMo Forced Aligner", theme="huggingface") as demo:
 			gr.Markdown("## Input")
 			lang_drop = gr.Dropdown(choices=["de", "en", "es", "fr", "zh"], value="en", label="Audio language",)
 
-			mic_in = gr.Audio(source="microphone", type='filepath', label="Microphone input (max 4 mins)")
-			audio_file_in = gr.Audio(source="upload", type='filepath', label="File upload (max 4 mins)")
+			mic_in = gr.Audio(sources=["microphone"], type='filepath', label="Microphone input (max 4 mins)")
+			audio_file_in = gr.Audio(sources=["upload"], type='filepath', label="File upload (max 4 mins)")
 			ref_text = gr.Textbox(
 				label="[Optional] The reference text. Use '|' separators to specify which text will appear together. "
 				"Leave this field blank to use an ASR model's transcription as the reference text instead."