Update wav_frontend.py

hnluo

2023-05-31 51e80c166731cf0b06f56fb9a4cb8d07699ef208

 setup.py

@@ -81,7 +81,7 @@
        # "gtn==0.0.0",
    ],
    "setup": [
        "numpy<=1.21.3",
        "numpy",
        "pytest-runner",
    ],
    "test": [