XUJiahua

Results 4 issues of XUJiahua

![image](https://user-images.githubusercontent.com/1501598/134801887-62613019-e3c8-42af-9a85-27092a116134.png)

reproduce: ``` wget https://github.com/k2-fsa/sherpa-onnx/releases/download/asr-models/sherpa-onnx-streaming-paraformer-bilingual-zh-en.tar.bz2 tar xvf sherpa-onnx-streaming-paraformer-bilingual-zh-en.tar.bz2 ./bin/sherpa-onnx \ --provider=coreml \ --tokens=./sherpa-onnx-streaming-paraformer-bilingual-zh-en/tokens.txt \ --paraformer-encoder=./sherpa-onnx-streaming-paraformer-bilingual-zh-en/encoder.onnx \ --paraformer-decoder=./sherpa-onnx-streaming-paraformer-bilingual-zh-en/decoder.onnx \ ./sherpa-onnx-streaming-paraformer-bilingual-zh-en/test_wavs/0.wav OnlineRecognizerConfig(feat_config=FeatureExtractorConfig(sampling_rate=16000, feature_dim=80, low_freq=20, high_freq=-400, dither=0), model_config=OnlineModelConfig(transducer=OnlineTransducerModelConfig(encoder="", decoder="", joiner=""), paraformer=OnlineParaformerModelConfig(encoder="./sherpa-onnx-streaming-paraformer-bilingual-zh-en/encoder.onnx", decoder="./sherpa-onnx-streaming-paraformer-bilingual-zh-en/decoder.onnx"), wenet_ctc=OnlineWenetCtcModelConfig(model="", chunk_size=16,...

reproduce the error: ``` git clone https://github.com/openai/whisper git clone https://github.com/ggerganov/whisper.cpp git clone https://huggingface.co/BELLE-2/Belle-whisper-large-v3-zh python whisper.cpp/models/convert-h5-to-ggml.py ./Belle-whisper-large-v3-zh ./whisper . Traceback (most recent call last): File "/Users/jiahua/projects/asr/whisper.cpp/models/convert-h5-to-ggml.py", line 115, in fout.write(struct.pack("i", hparams["max_length"]))...

用户可以在自定义 values.yaml 中定义环境变量