我想以编程方式录制在我的笔记本电脑中使用python播放的声音。我发现PyAudio
并用以下程序完成任务上来:在python中录制输出声音
import pyaudio, wave, sys
chunk = 1024
FORMAT = pyaudio.paInt16
CHANNELS = 1
RATE = 44100
RECORD_SECONDS = 5
WAVE_OUTPUT_FILENAME = sys.argv[1]
p = pyaudio.PyAudio()
channel_map = (0, 1)
stream_info = pyaudio.PaMacCoreStreamInfo(
flags = pyaudio.PaMacCoreStreamInfo.paMacCorePlayNice,
channel_map = channel_map)
stream = p.open(format = FORMAT,
rate = RATE,
input = True,
input_host_api_specific_stream_info = stream_info,
channels = CHANNELS)
all = []
for i in range(0, RATE/chunk * RECORD_SECONDS):
data = stream.read(chunk)
all.append(data)
stream.close()
p.terminate()
data = ''.join(all)
wf = wave.open(WAVE_OUTPUT_FILENAME, 'wb')
wf.setnchannels(CHANNELS)
wf.setsampwidth(p.get_sample_size(FORMAT))
wf.setframerate(RATE)
wf.writeframes(data)
wf.close()
的问题是我的耳机插孔连接到麦克风插孔。我试图更换这些线路:
input = True,
input_host_api_specific_stream_info = stream_info,
这些:
output = True,
output_host_api_specific_stream_info = stream_info,
但后来我得到这个错误:
Traceback (most recent call last):
File "./test.py", line 25, in
data = stream.read(chunk)
File "/Library/Python/2.5/site-packages/pyaudio.py", line 562, in read
paCanNotReadFromAnOutputOnlyStream)
IOError: [Errno Not input stream] -9975
有没有办法来实例化PyAudio流,使其输入从计算机的输出,我不必将耳机插孔连接到麦克风?有没有更好的方法去做这件事?我宁愿粘着W /一个Python应用程序,并避免可可。
声音已经在您的笔记本电脑中? “另存为...”是Macintosh的问题。 – 2010-01-12 12:13:12
有没有简单的方法来保存在你的浏览器中的Flash播放器中播放的文件(我猜他们是.flv文件)?我知道很多次,像youtube和vimeo这样的网站都有链接来下载.flv文件,但很多时候他们没有链接来执行此操作。 – aaronstacy 2010-01-12 15:57:23