streaming bugfix (#1271)

zhifu gao

2024-01-18 12496e559feea69af2e77eac6f22b32df3bf6762

 runtime/onnxruntime/src/audio.cpp

@@ -945,6 +945,7 @@
{
    if (speech_char != nullptr) {
        free(speech_char);
        speech_char = nullptr;
    }

    FILE* fp;