weakaudio.py 文件源码

def pya():
    global global_pya
    import pyaudio
    if global_pya == None:
        # suppress Jack and ALSA error messages on Linux.
        nullfd = os.open("/dev/null", 1)
        oerr = os.dup(2)
        os.dup2(nullfd, 2)

        global_pya = pyaudio.PyAudio()

        os.dup2(oerr, 2)
        os.close(oerr)
        os.close(nullfd)
    return global_pya

# find the lowest supported input rate >= rate.
# needed on Linux but not the Mac (which converts as needed).