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PortAudio: Opening a Stream Using Defaults

http://www.portaudio.com/docs/v19-doxydocs/open_default_stream.html

PortAudio. The next step is to open a stream, which is similar to opening a file. You can specify whether you want audio input and/or output, how many channels, the data format, sample rate, etc. Opening a ''default'' stream means opening the default input and output devices, which saves you the trouble of getting a list of devices and choosing ...

PortAudio: Starting, Stopping and Aborting a Stream

http://www.portaudio.com/docs/v19-doxydocs/start_stop_abort.html

PortAudio: Starting, Stopping and Aborting a Stream Starting, Stopping and Aborting a Stream PortAudio will not start playing back audio until you start the stream. After calling Pa_StartStream (), PortAudio will start calling your callback function to perform the audio processing. err = Pa_StartStream ( stream );

PortAudio: Utility Functions

http://files.portaudio.com/docs/v19-doxydocs/utility_functions.html

PortAudio allows you to get error text from an error number. const char * Pa_GetErrorText ( PaError errorCode) Stream State PortAudio Streams exist in 3 states: Active, Stopped, and Callback Stopped. If a stream is in callback stopped state, you'll need to stop it …

c++ - I'm Trying to open a stream in PortAudio - Stack ...

https://stackoverflow.com/questions/61326170/im-trying-to-open-a-stream-in-portaudio

PortAudio Streaming and processing in real time. 0. Portaudio hangs when reading/writing to same device. 1. Portaudio Input Buffer is Always Empty. Hot Network Questions What's the German Word for "Wet Lube" (Bicycle Chain) Is the Caro-Kann principled? Why is there no refutation?

c - PortAudio real-time audio processing for continuous ...

https://stackoverflow.com/questions/44645466/portaudio-real-time-audio-processing-for-continuous-input-stream

I am using PortAudio to implement a real-time audio processing. My primary task is to acquire data from mic continuously and provide 100 samples for processing (each FRAME = 100 samples at a time) to some other processing thread. Here is my callback collecting 100 samples each time on a continuous basis -. Sending each Frame of 100 samples to ...

GitHub - PortAudio/portaudio: PortAudio is a cross ...

https://github.com/PortAudio/portaudio

PortAudio is a portable audio I/O library designed for cross-platform support of audio. It uses either a callback mechanism to request audio processing, or blocking read/write calls to buffer data between the native audio subsystem and the client.

Streams using NumPy Arrays — python ... - Read the Docs

https://python-sounddevice.readthedocs.io/en/0.4.1/api/streams.html

PortAudio stream for simultaneous input and output (using NumPy). To open an input-only or output-only stream use InputStreamor OutputStream, respectively. If you want to handle audio data as plain buffer objects instead of NumPy arrays, use RawStream, RawInputStreamor RawOutputStream. A single stream can provide multiple channels of real-time

Re: ncspot/portaudio: Stream drop error: PortAudio not ...

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PyAudio: PortAudio v19 Python Bindings

https://people.csail.mit.edu/hubert/pyaudio/

""" pyaudio example: make a wire between input and output (i.e., record a few samples and play them back immediately). """ import pyaudio chunk = 1024 width = 2 channels = 2 rate = 44100 record_seconds = 5 p = pyaudio.pyaudio() stream = p.open(format=p.get_format_from_width(width), channels=channels, rate=rate, input=true, …

Python - pyaudio - DevTut

https://devtut.github.io/python/pyaudio.html

To use PyAudio, first instantiate PyAudio using pyaudio.PyAudio () (1), which sets up the portaudio system. To record or play audio, open a stream on the desired device with the desired audio parameters using pyaudio.PyAudio.open () (2). This sets up a …

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