＜Python＞使用python来控制windows系统音量
| 阿里云国内75折 回扣 微信号：monov8 |
| 阿里云国际，腾讯云国际，低至75折。AWS 93折 免费开户实名账号 代冲值 优惠多多 微信号：monov8 飞机：@monov6 |
使用python可以对windows系统的音量进行读取或者设置。
平台visual studio code
语言python
需要的python模块
1、pyqt5
2、ctypes
ctypes 是 Python 的外部函数库。它提供了与 C 兼容的数据类型并允许调用 DLL 或共享库中的函数。可使用该模块以纯
Python 形式对这些库进行封装。这里是引用
3、comtypes
comtypes是一个基于ctypes-ffi外部函数库的纯Python COM包
这里是引用
4、pycaw
Python核心音频WindowsAPI库
UI界面
代码
1、初始化音量接口
def init_vol(self):
"""初始化音量对应"""
# 音量对应关系
# 0% --- -65.25
# 55% --- -8.92
# 100% --- 0.0
self.volume_match={0: -65.25, 1: -56.99, 2: -51.67, 3: -47.74, 4: -44.62, 5: -42.03, 6: -39.81, 7: -37.89, 8: -36.17, 9: -34.63, 10: -33.24,
11: -31.96, 12: -30.78, 13: -29.68, 14: -28.66, 15: -27.7, 16: -26.8, 17: -25.95, 18: -25.15, 19: -24.38, 20: -23.65,
21: -22.96, 22: -22.3, 23: -21.66, 24: -21.05, 25: -20.46, 26: -19.9, 27: -19.35, 28: -18.82, 29: -18.32, 30: -17.82,
31: -17.35, 32: -16.88, 33: -16.44, 34: -16.0, 35: -15.58, 36: -15.16, 37: -14.76, 38: -14.37, 39: -13.99, 40: -13.62,
41: -13.26, 42: -12.9, 43: -12.56, 44: -12.22, 45: -11.89, 46: -11.56, 47: -11.24, 48: -10.93, 49: -10.63, 50: -10.33,
51: -10.04, 52: -9.75, 53: -9.47, 54: -9.19, 55: -8.92, 56: -8.65, 57: -8.39, 58: -8.13, 59: -7.88, 60: -7.63,
61: -7.38, 62: -7.14, 63: -6.9, 64: -6.67, 65: -6.44, 66: -6.21, 67: -5.99, 68: -5.76, 69: -5.55, 70: -5.33,
71: -5.12, 72: -4.91, 73: -4.71, 74: -4.5, 75: -4.3, 76: -4.11, 77: -3.91, 78: -3.72, 79: -3.53, 80: -3.34,
81: -3.15, 82: -2.97, 83: -2.79, 84: -2.61, 85: -2.43, 86: -2.26, 87: -2.09, 88: -1.91, 89: -1.75, 90: -1.58,
91: -1.41, 92: -1.25, 93: -1.09, 94: -0.93, 95: -0.77, 96: -0.61, 97: -0.46, 98: -0.3, 99: -0.15, 100: 0.0}
#音量值反对应
self.volume_match_2={-65.25:0, -56.99:1, -51.67:2, -47.74:3, -44.62:4, -42.03:5, -39.81:6,-37.89:7, -36.17:8, -34.63:9, -33.24:10,
-31.96:11, -30.78:12, -29.68:13, -28.66:14, -27.7:15, -26.8:16, -25.95:17, -25.15:18, -24.38:19, -23.65:20,
-22.96:21, -22.3:22, -21.66:23, -21.05:24, -20.46:25, -19.9:26, -19.35:27, -18.82:28, -18.32:29, -17.82:30,
-17.35:31, -16.88:32, -16.44:33, -16.0:34, -15.58:35,-15.16:36, -14.76:37, -14.37:38, -13.99:39, -13.62:40,
-13.26:41, -12.9:42, -12.56:43, -12.22:44,-11.89:45, -11.56:46, -11.24:47, -10.93:48, -10.63:49, -10.33:50,
-10.04:51, -9.75:52, -9.47:53, -9.19:54, -8.92:55, -8.65:56, -8.39:57, -8.13:58, -7.88:59, -7.63:60,
-7.38:61, -7.14:62, -6.9:63, -6.67:64, -6.44:65, -6.21:66, -5.99:67, -5.76:68, -5.55:69, -5.33:70,
-5.12:71,-4.91:72, -4.71:73, -4.5:74, -4.3:75, -4.11:76, -3.91:77, -3.72:78, -3.53:79, -3.34:80,
-3.15:81, -2.97:82, -2.79:83, -2.61:84, -2.43:85, -2.26:86, -2.09:87, -1.91:88, -1.75:89, -1.58:90,
-1.41:91, -1.25:92, -1.09:93, -0.93:94, -0.77:95, -0.61:96, -0.46:97, -0.3:98, -0.15:99, 0.0:100}
self.devices11=AudioUtilities.GetSpeakers()
self.interface=self.devices11.Activate(IAudioEndpointVolume._iid_,CLSCTX_ALL,None)
self.volum11=cast(self.interface,POINTER(IAudioEndpointVolume))
self.mute=self.volum11.GetMute()
电脑的音量虽然显示是一个整数但实际的音量值是一个浮点数就是上面代码里所列出的从0到100的对应值。利用pycaw获取音频接口然后激活并将获取的输出转为C语言下的指针。
2、获取音量
vm=self.volum11.GetMasterVolumeLevel()
#print(vm)
vm2=round(vm,2)
#print(vm2)
vm3=self.volume_match_2[vm2]
#print(vm3)
#v1=self.volum11.GetVolumeRange()
#print(v1)
#return vm3
self.lbl1.setText(str(vm3))
获取音量使用GetMasterVolumeLevel函数即可这个函数获取的是一个浮点数将浮点数作一下四舍五入的处理小数点保留两位与音量值数组对应然后去数组里匹配将对应的音量整数输出显示即可。
3、设置系统音量
v11=int(v1)
self.sys_volume_value=self.volume_match[v11]
#print(self.sys_volume_value)
self.volum11.SetMasterVolumeLevel(self.sys_volume_value,None)
设置音量与获取音量正好是相反的过程在UI界面上设置一个音量值整数将其代入第二个数组来匹配真实音量值浮点然后将对应的音量值利用函数SetMasterVolumeLevel输入给电脑音频接口即可。
4、演示
Python获取windows音量小工具