重现步骤
filename='/sdcard/examples/test.wav'
if isinstance(filename, str):
with open(filename, 'rb') as f:
try :
speech_data_in = f.read()
except Exception as e:
print(e)
期待结果和实际结果
无法读取WAV文件，死机，无错误提示
软硬件版本信息
K230
CanMV_K230_01Studio_micropython_v1.3-rc2-0-g8d071e9_nncase_v2.9.0.img
错误日志
尝试解决过程
补充材料
