Update app.py

app.py

@@ -29,7 +29,7 @@ def text2audio(text, negative_prompt, duration, guidance_scale, random_seed, n_c
         guidance_scale=guidance_scale,
         num_inference_steps=200,
         negative_prompt=negative_prompt,
-        num_waveforms_per_prompt=n_candidates if n_candidates else 1,
+        num_waveforms_per_prompt=int(n_candidates) if n_candidates else 1,
         generator=generator.manual_seed(int(random_seed)),
     )["audios"]