5.`--ngpu` is the number of gpus to use, if ngpu == 0, use cpu.
## Pretrained Model
The pretrained model can be downloaded here [hifigan_ljspeech_ckpt_0.2.0.zip](https://paddlespeech.bj.bcebos.com/Parakeet/released_models/hifigan/hifigan_ljspeech_ckpt_0.2.0.zip).
Model | Step | eval/generator_loss | eval/mel_loss| eval/feature_matching_loss
paddlespeech tts --am fastspeech2_ljspeech --voc pwgan_ljspeech --lang en --input"Life was like a box of chocolates, you never know what you're gonna get."
paddlespeech tts --am fastspeech2_ljspeech --voc hifigan_ljspeech --lang en --input"Life was like a box of chocolates, you never know what you're gonna get."
paddlespeech tts --am fastspeech2_vctk --voc pwgan_vctk --input"Life was like a box of chocolates, you never know what you're gonna get."--lang en --spk_id 0
paddlespeech tts --am fastspeech2_vctk --voc hifigan_vctk --input"Life was like a box of chocolates, you never know what you're gonna get."--lang en --spk_id 0