python获取win10系统声音

首先是驱动环境这样:

python获取win10系统声音_第1张图片

python获取win10系统声音_第2张图片

import pyaudio
p = pyaudio.PyAudio()
for i in range(p.get_device_count()):
    devInfo = p.get_device_info_by_index(i)
    #if devInfo['hostApi'] == 0:
    print(devInfo)

# {'index': 0, 'structVersion': 2, 'name': 'Microsoft 声音映射器 - Input', 'hostApi': 0, 'maxInputChannels': 2, 'maxOutputChannels': 0, 'defaultLowInputLatency': 0.09, 'defaultLowOutputLatency': 0.09, 'defaultHighInputLatency': 0.18, 'defaultHighOutputLatency': 0.18, 'defaultSampleRate': 44100.0}
# {'index': 1, 'structVersion': 2, 'name': '麦克风 (Realtek High Definition Au', 'hostApi': 0, 'maxInputChannels': 2, 'maxOutputChannels': 0, 'defaultLowInputLatency': 0.09, 'defaultLowOutputLatency': 0.09, 'defaultHighInputLatency': 0.18, 'defaultHighOutputLatency': 0.18, 'defaultSampleRate': 44100.0}
# {'index': 2, 'structVersion': 2, 'name': 'Microsoft 声音映射器 - Output', 'hostApi': 0, 'maxInputChannels': 0, 'maxOutputChannels': 2, 'defaultLowInputLatency': 0.09, 'defaultLowOutputLatency': 0.09, 'defaultHighInputLatency': 0.18, 'defaultHighOutputLatency': 0.18, 'defaultSampleRate': 44100.0}
# {'index': 3, 'structVersion': 2, 'name': '扬声器 (Realtek High Definition Au', 'hostApi': 0, 'maxInputChannels': 0, 'maxOutputChannels': 2, 'defaultLowInputLatency': 0.09, 'defaultLowOutputLatency': 0.09, 'defaultHighInputLatency': 0.18, 'defaultHighOutputLatency': 0.18, 'defaultSampleRate': 44100.0}
# {'index': 4, 'structVersion': 2, 'name': '主声音捕获驱动程序', 'hostApi': 1, 'maxInputChannels': 2, 'maxOutputChannels': 0, 'defaultLowInputLatency': 0.12, 'defaultLowOutputLatency': 0.0, 'defaultHighInputLatency': 0.24, 'defaultHighOutputLatency': 0.0, 'defaultSampleRate': 44100.0}
# {'index': 5, 'structVersion': 2, 'name': '麦克风 (Realtek High Definition Audio)', 'hostApi': 1, 'maxInputChannels': 2, 'maxOutputChannels': 0, 'defaultLowInputLatency': 0.12, 'defaultLowOutputLatency': 0.0, 'defaultHighInputLatency': 0.24, 'defaultHighOutputLatency': 0.0, 'defaultSampleRate': 44100.0}
# {'index': 6, 'structVersion': 2, 'name': '主声音驱动程序', 'hostApi': 1, 'maxInputChannels': 0, 'maxOutputChannels': 8, 'defaultLowInputLatency': 0.0, 'defaultLowOutputLatency': 0.12, 'defaultHighInputLatency': 0.0, 'defaultHighOutputLatency': 0.24, 'defaultSampleRate': 44100.0}
# {'index': 7, 'structVersion': 2, 'name': '扬声器 (Realtek High Definition Audio)', 'hostApi': 1, 'maxInputChannels': 0, 'maxOutputChannels': 2, 'defaultLowInputLatency': 0.0, 'defaultLowOutputLatency': 0.12, 'defaultHighInputLatency': 0.0, 'defaultHighOutputLatency': 0.24, 'defaultSampleRate': 44100.0}
# {'index': 8, 'structVersion': 2, 'name': 'Realtek ASIO', 'hostApi': 2, 'maxInputChannels': 2, 'maxOutputChannels': 2, 'defaultLowInputLatency': 0.023219954648526078, 'defaultLowOutputLatency': 0.023219954648526078, 'defaultHighInputLatency': 0.023219954648526078, 'defaultHighOutputLatency': 0.023219954648526078, 'defaultSampleRate': 44100.0}
# {'index': 9, 'structVersion': 2, 'name': '扬声器 (Realtek High Definition Audio)', 'hostApi': 3, 'maxInputChannels': 0, 'maxOutputChannels': 8, 'defaultLowInputLatency': 0.0, 'defaultLowOutputLatency': 0.003, 'defaultHighInputLatency': 0.0, 'defaultHighOutputLatency': 0.01, 'defaultSampleRate': 48000.0}
# {'index': 10, 'structVersion': 2, 'name': '麦克风 (Realtek High Definition Audio)', 'hostApi': 3, 'maxInputChannels': 8, 'maxOutputChannels': 0, 'defaultLowInputLatency': 0.003, 'defaultLowOutputLatency': 0.0, 'defaultHighInputLatency': 0.01, 'defaultHighOutputLatency': 0.0, 'defaultSampleRate': 48000.0}
# {'index': 11, 'structVersion': 2, 'name': '立体声混音 (Realtek HD Audio Stereo input)', 'hostApi': 4, 'maxInputChannels': 2, 'maxOutputChannels': 0, 'defaultLowInputLatency': 0.01, 'defaultLowOutputLatency': 0.01, 'defaultHighInputLatency': 0.04, 'defaultHighOutputLatency': 0.04, 'defaultSampleRate': 44100.0}
# {'index': 12, 'structVersion': 2, 'name': 'Speakers (Realtek HD Audio output)', 'hostApi': 4, 'maxInputChannels': 0, 'maxOutputChannels': 2, 'defaultLowInputLatency': 0.01, 'defaultLowOutputLatency': 0.01, 'defaultHighInputLatency': 0.04, 'defaultHighOutputLatency': 0.04, 'defaultSampleRate': 44100.0}
# {'index': 13, 'structVersion': 2, 'name': '麦克风 (Realtek HD Audio Mic input)', 'hostApi': 4, 'maxInputChannels': 2, 'maxOutputChannels': 0, 'defaultLowInputLatency': 0.01, 'defaultLowOutputLatency': 0.01, 'defaultHighInputLatency': 0.04, 'defaultHighOutputLatency': 0.04, 'defaultSampleRate': 44100.0}
# {'index': 14, 'structVersion': 2, 'name': 'SPDIF Out (Realtek HDA SPDIF Out)', 'hostApi': 4, 'maxInputChannels': 0, 'maxOutputChannels': 2, 'defaultLowInputLatency': 0.01, 'defaultLowOutputLatency': 0.01, 'defaultHighInputLatency': 0.04, 'defaultHighOutputLatency': 0.04, 'defaultSampleRate': 44100.0}

这样的话只能接受麦克风声音,还有其他的驱动(2还是4忘了)是哔哔声

然后网上找了一上午,找到了个办法

http://www.naxs.cn/win10/4220.html

也就是扬声器取消独占,并启动立体混响,然后python就能接收到系统的音频信号了

# _*_ coding: utf-8 _*_

# 录音机,用于录制声卡播放的声音(内录)

import os
import pyaudio
import threading
import wave
import time
from datetime import datetime


# 录音类
class Recorder():
    def __init__(self, chunk=1024, channels=2, rate=44100):
        self.CHUNK = chunk
        self.FORMAT = pyaudio.paInt16
        self.CHANNELS = channels
        self.RATE = rate
        self._running = True
        self._frames = []

    # 获取内录设备序号,在windows操作系统上测试通过,hostAPI = 0 表明是MME设备
    def findInternalRecordingDevice(self, p):
        # 要找查的设备名称中的关键字
        target = '立体声混音'
        # 逐一查找声音设备
        for i in range(p.get_device_count()):
            devInfo = p.get_device_info_by_index(i)
            if devInfo['name'].find(target) >= 0 and devInfo['hostApi'] == 0:
                # print('已找到内录设备,序号是 ',i)
                return i
        print('无法找到内录设备!')
        return -1

    # 开始录音,开启一个新线程进行录音操作
    def start(self):
        threading._start_new_thread(self.__record, ())

    # 执行录音的线程函数
    def __record(self):
        self._running = True
        self._frames = []

        p = pyaudio.PyAudio()
        # 查找内录设备
        dev_idx = self.findInternalRecordingDevice(p)
        if dev_idx < 0:
            return
        # 在打开输入流时指定输入设备
        stream = p.open(input_device_index=dev_idx,
                        format=self.FORMAT,
                        channels=self.CHANNELS,
                        rate=self.RATE,
                        input=True,
                        frames_per_buffer=self.CHUNK)
        # 循环读取输入流
        while (self._running):
            data = stream.read(self.CHUNK)
            self._frames.append(data)

        # 停止读取输入流
        stream.stop_stream()
        # 关闭输入流
        stream.close()
        # 结束pyaudio
        p.terminate()
        return

    # 停止录音
    def stop(self):
        self._running = False

    # 保存到文件
    def save(self, fileName):
        # 创建pyAudio对象
        p = pyaudio.PyAudio()
        # 打开用于保存数据的文件
        wf = wave.open(fileName, 'wb')
        # 设置音频参数
        wf.setnchannels(self.CHANNELS)
        wf.setsampwidth(p.get_sample_size(self.FORMAT))
        wf.setframerate(self.RATE)
        # 写入数据
        wf.writeframes(b''.join(self._frames))
        # 关闭文件
        wf.close()
        # 结束pyaudio
        p.terminate()


if __name__ == "__main__":

    # 检测当前目录下是否有record子目录
    if not os.path.exists('record'):
        os.makedirs('record')

    print("\npython 录音机 ....\n")
    print("提示:按 r 键并回车 开始录音\n")

    i = input('请输入操作码:')
    if i == 'r':
        rec = Recorder()
        begin = time.time()

        print("\n开始录音,按 s 键并回车 停止录音,自动保存到 record 子目录\n")
        rec.start()

        running = True
        while running:
            i = input("请输入操作码:")
            if i == 's':
                running = False
                print("录音已停止")
                rec.stop()
                t = time.time() - begin
                print('录音时间为%ds' % t)
                # 以当前时间为关键字保存wav文件
                rec.save("record/rec_" + datetime.now().strftime("%Y-%m-%d_%H-%M-%S") + ".wav")

代码来源:https://blog.csdn.net/littlezhuhui/article/details/101025305

 

我现在想学习的是,wallpaper

python获取win10系统声音_第3张图片

wallpaper是怎么做到在立体混响禁用的情况下,还能拿到系统声音,我真是服了,知道解决办法,但是我也想跟wallpaper一样,在最上面给出的环境下获取到系统声音。

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