Android Demo have no sound，no error or exception in log，but a warnning

[mmhmofu]

2024-10-24 16:29:34.041 5261-5371 TAG com.tensorspeech.tensorflowtts D speakBtn
2024-10-24 16:29:34.044 5261-5372 InputWorker com.tensorspeech.tensorflowtts D add to queue: hey hello world
2024-10-24 16:29:34.046 5261-5305 InputWorker com.tensorspeech.tensorflowtts D processing: hey hello world
2024-10-24 16:29:34.046 5261-5305 TtsStateDispatcher com.tensorspeech.tensorflowtts D onTtsStart:
2024-10-24 16:29:34.047 5261-5305 InputWorker com.tensorspeech.tensorflowtts D speak: [hey hello world]
2024-10-24 16:29:34.058 5261-5305 processor com.tensorspeech.tensorflowtts D text preprocessed: hey hello world
2024-10-24 16:29:34.059 5261-5305 FastSpeech2 com.tensorspeech.tensorflowtts D input id length: 15
2024-10-24 16:29:34.569 5261-5305 FastSpeech2 com.tensorspeech.tensorflowtts D time cost: 501
2024-10-24 16:29:35.875 5261-5305 MBMelGan com.tensorspeech.tensorflowtts D time cost: 1293
2024-10-24 16:29:35.876 5261-5305 InputWorker com.tensorspeech.tensorflowtts D Time cost: 523+1306=1829
2024-10-24 16:29:35.876 5261-5305 TtsPlayer com.tensorspeech.tensorflowtts D add audio data to queue: hey hello world
2024-10-24 16:29:35.876 5261-5305 TtsStateDispatcher com.tensorspeech.tensorflowtts D onTtsStop:
2024-10-24 16:29:35.876 5261-5304 TtsPlayer com.tensorspeech.tensorflowtts D playing: hey hello world
2024-10-24 16:29:35.876 5261-5304 AudioTrack com.tensorspeech.tensorflowtts W releaseBuffer() track 0xb0beed00 disabled due to previous underrun, restarting