def check_yaafe():
    "Check Aubio availability"
    try:
        import yaafelib
    except ImportError:
        warnings.warn('Yaafe librairy is not available', ImportWarning,
                      stacklevel=2)
        _WITH_YAAFE = False
    else:
        _WITH_YAAFE = True
        del yaafelib
    return _WITH_YAAFE