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63 lines
2.8 KiB
Markdown
63 lines
2.8 KiB
Markdown
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# PortAudio - portable audio I/O library
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PortAudio is a portable audio I/O library designed for cross-platform
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support of audio. It uses either a callback mechanism to request audio
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processing, or blocking read/write calls to buffer data between the
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native audio subsystem and the client. Audio can be processed in various
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formats, including 32 bit floating point, and will be converted to the
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native format internally.
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## Documentation:
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* Documentation is available at http://www.portaudio.com/docs/
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* Or at `/doc/html/index.html` after running Doxygen.
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* Also see `src/common/portaudio.h` for the API spec.
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* And see the `examples/` and `test/` directories for many examples of usage. (We suggest `examples/paex_saw.c` for an example.)
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For information on compiling programs with PortAudio, please see the
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tutorial at:
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http://portaudio.com/docs/v19-doxydocs/tutorial_start.html
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We have an active mailing list for user and developer discussions.
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Please feel free to join. See http://www.portaudio.com for details.
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## Important Files and Folders:
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include/portaudio.h = header file for PortAudio API. Specifies API.
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src/common/ = platform independent code, host independent
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code for all implementations.
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src/os = os specific (but host api neutral) code
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src/hostapi = implementations for different host apis
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### Host API Implementations:
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src/hostapi/alsa = Advanced Linux Sound Architecture (ALSA)
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src/hostapi/asihpi = AudioScience HPI
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src/hostapi/asio = ASIO for Windows and Macintosh
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src/hostapi/coreaudio = Macintosh Core Audio for OS X
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src/hostapi/dsound = Windows Direct Sound
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src/hostapi/jack = JACK Audio Connection Kit
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src/hostapi/oss = Unix Open Sound System (OSS)
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src/hostapi/wasapi = Windows Vista WASAPI
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src/hostapi/wdmks = Windows WDM Kernel Streaming
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src/hostapi/wmme = Windows MultiMedia Extensions (MME)
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### Test Programs:
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test/pa_fuzz.c = guitar fuzz box
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test/pa_devs.c = print a list of available devices
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test/pa_minlat.c = determine minimum latency for your machine
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test/paqa_devs.c = self test that opens all devices
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test/paqa_errs.c = test error detection and reporting
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test/patest_clip.c = hear a sine wave clipped and unclipped
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test/patest_dither.c = hear effects of dithering (extremely subtle)
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test/patest_pink.c = fun with pink noise
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test/patest_record.c = record and playback some audio
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test/patest_maxsines.c = how many sine waves can we play? Tests Pa_GetCPULoad().
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test/patest_sine.c = output a sine wave in a simple PA app
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test/patest_sync.c = test synchronization of audio and video
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test/patest_wire.c = pass input to output, wire simulator
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