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POrecord output sound in python
 

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  1. POrecord output sound in python
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    <p>i want to programatically record sound coming out of my laptop in python. i found <code>PyAudio</code> and came up with the following program that accomplishes the task:</p> <pre><code>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() </code></pre> <p>the problem is i have to connect the headphone jack to the microphone jack. i tried replacing these lines:</p> <pre><code>input = True, input_host_api_specific_stream_info = stream_info, </code></pre> <p>with these:</p> <pre><code>output = True, output_host_api_specific_stream_info = stream_info, </code></pre> <p>but then i get this error:</p> <blockquote> <p>Traceback (most recent call last):<br> File "./test.py", line 25, in <br> data = stream.read(chunk)<br> File "/Library/Python/2.5/site-packages/pyaudio.py", line 562, in read<br> paCanNotReadFromAnOutputOnlyStream)<br> IOError: [Errno Not input stream] -9975 </p> </blockquote> <p>is there a way to instantiate the PyAudio stream so that it inputs from the computer's output and i don't have to connect the headphone jack to the microphone? is there a better way to go about this? i'd prefer to stick w/ a python app and avoid cocoa.</p>
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    1. COThe sound is already in your laptop? What's wrong with "save as..." it's Macintosh.
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    2. COis there an easy way to save the files that play in the flash player in your browser (i'm guessing they're .flv files)? i know a lot of times sites like youtube and vimeo have links to download the .flv file, but a lot of times they don't have a link to do this.
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