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1 william 31 README for PortAudio
2    
3     /*
4     * PortAudio Portable Real-Time Audio Library
5     * Latest Version at: http://www.portaudio.com
6     *
7     * Copyright (c) 1999-2008 Phil Burk and Ross Bencina
8     *
9     * Permission is hereby granted, free of charge, to any person obtaining
10     * a copy of this software and associated documentation files
11     * (the "Software"), to deal in the Software without restriction,
12     * including without limitation the rights to use, copy, modify, merge,
13     * publish, distribute, sublicense, and/or sell copies of the Software,
14     * and to permit persons to whom the Software is furnished to do so,
15     * subject to the following conditions:
16     *
17     * The above copyright notice and this permission notice shall be
18     * included in all copies or substantial portions of the Software.
19     *
20     * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21     * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22     * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
23     * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
24     * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
25     * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
26     * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27     */
28    
29     /*
30     * The text above constitutes the entire PortAudio license; however,
31     * the PortAudio community also makes the following non-binding requests:
32     *
33     * Any person wishing to distribute modifications to the Software is
34     * requested to send the modifications to the original developer so that
35     * they can be incorporated into the canonical version. It is also
36     * requested that these non-binding requests be included along with the
37     * license above.
38     */
39    
40    
41     PortAudio is a portable audio I/O library designed for cross-platform
42     support of audio. It uses either a callback mechanism to request audio
43     processing, or blocking read/write calls to buffer data between the
44     native audio subsystem and the client. Audio can be processed in various
45     formats, including 32 bit floating point, and will be converted to the
46     native format internally.
47    
48     Documentation:
49     Documentation is available in "/doc/html/index.html"
50     Also see "src/common/portaudio.h" for API spec.
51     Also see http://www.portaudio.com/docs/
52     And see the "test/" directory for many examples of usage
53     (we suggest "test/patest_saw.c" for an example)
54    
55     For information on compiling programs with PortAudio, please see the
56     tutorial at:
57    
58     http://portaudio.com/trac/wiki/TutorialDir/TutorialStart
59    
60     We have an active mailing list for user and developer discussions.
61     Please feel free to join. See http://www.portaudio.com for details.
62    
63    
64     Important Files and Folders:
65     include/portaudio.h = header file for PortAudio API. Specifies API.
66     src/common/ = platform independant code, host independant
67     code for all implementations.
68     src/os = os specific (but host api neutral) code
69     src/hostapi = implementations for different host apis
70    
71    
72     Host API Implementations:
73     src/hostapi/alsa = Advanced Linux Sound Architecture (ALSA)
74     src/hostapi/asihpi = AudioScience HPI
75     src/hostapi/asio = ASIO for Windows and Macintosh
76     src/hostapi/coreaudio = Macintosh Core Audio for OS X
77     src/hostapi/dsound = Windows Direct Sound
78     src/hostapi/jack = JACK Audio Connection Kit
79     src/hostapi/oss = Unix Open Sound System (OSS)
80     src/hostapi/wasapi = Windows Vista WASAPI
81     src/hostapi/wdmks = Windows WDM Kernel Streaming
82     src/hostapi/wmme = Windows MultiMedia Extensions (MME)
83    
84    
85     Test Programs:
86     test/pa_fuzz.c = guitar fuzz box
87     test/pa_devs.c = print a list of available devices
88     test/pa_minlat.c = determine minimum latency for your machine
89     test/paqa_devs.c = self test that opens all devices
90     test/paqa_errs.c = test error detection and reporting
91     test/patest_clip.c = hear a sine wave clipped and unclipped
92     test/patest_dither.c = hear effects of dithering (extremely subtle)
93     test/patest_pink.c = fun with pink noise
94     test/patest_record.c = record and playback some audio
95     test/patest_maxsines.c = how many sine waves can we play? Tests Pa_GetCPULoad().
96     test/patest_sine.c = output a sine wave in a simple PA app
97     test/patest_sync.c = test syncronization of audio and video
98     test/patest_wire.c = pass input to output, wire simulator

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