mirror of
				https://github.com/saitohirga/WSJT-X.git
				synced 2025-11-04 05:50:31 -05:00 
			
		
		
		
	
		
			
	
	
		
			48 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			HTML
		
	
	
	
	
	
		
		
			
		
	
	
			48 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			HTML
		
	
	
	
	
	
| 
								 | 
							
								<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
							 | 
						||
| 
								 | 
							
								<html>
							 | 
						||
| 
								 | 
							
								<head>
							 | 
						||
| 
								 | 
							
								   <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
							 | 
						||
| 
								 | 
							
								   <meta name="GENERATOR" content="Mozilla/4.73 [en]C-gatewaynet  (Win98; U) [Netscape]">
							 | 
						||
| 
								 | 
							
								   <meta name="Author" content="Phil Burk">
							 | 
						||
| 
								 | 
							
								   <meta name="Description" content="Tutorial for PortAudio, a cross platform, open-source, audio I/O library.It provides a very simple API for recording and/or playing sound using a simple callback function.">
							 | 
						||
| 
								 | 
							
								   <meta name="KeyWords" content="audio, tutorial, library, portable, open-source, DirectSound,sound, music, JSyn, synthesis,">
							 | 
						||
| 
								 | 
							
								   <title>PortAudio Tutorial</title>
							 | 
						||
| 
								 | 
							
								</head>
							 | 
						||
| 
								 | 
							
								<body>
							 | 
						||
| 
								 | 
							
								 
							 | 
						||
| 
								 | 
							
								<center><table COLS=1 WIDTH="100%" BGCOLOR="#FADA7A" >
							 | 
						||
| 
								 | 
							
								<tr>
							 | 
						||
| 
								 | 
							
								<td>
							 | 
						||
| 
								 | 
							
								<center>
							 | 
						||
| 
								 | 
							
								<h1>
							 | 
						||
| 
								 | 
							
								PortAudio Tutorial</h1></center>
							 | 
						||
| 
								 | 
							
								</td>
							 | 
						||
| 
								 | 
							
								</tr>
							 | 
						||
| 
								 | 
							
								</table></center>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								<h2>
							 | 
						||
| 
								 | 
							
								Terminating PortAudio</h2>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								<blockquote>You can start and stop a stream as many times as you like.
							 | 
						||
| 
								 | 
							
								But when you are done using it, you should close it by calling:</blockquote>
							 | 
						||
| 
								 | 
							
								
							 | 
						||
| 
								 | 
							
								<blockquote>
							 | 
						||
| 
								 | 
							
								<blockquote>
							 | 
						||
| 
								 | 
							
								<pre>err = Pa_CloseStream( stream );
							 | 
						||
| 
								 | 
							
								if( err != paNoError ) goto error;</pre>
							 | 
						||
| 
								 | 
							
								</blockquote>
							 | 
						||
| 
								 | 
							
								Then when you are done using PortAudio, you should terminate the whole
							 | 
						||
| 
								 | 
							
								system by calling:
							 | 
						||
| 
								 | 
							
								<blockquote>
							 | 
						||
| 
								 | 
							
								<pre>Pa_Terminate();</pre>
							 | 
						||
| 
								 | 
							
								</blockquote>
							 | 
						||
| 
								 | 
							
								That's basically it. You can now write an audio program in 'C' that will
							 | 
						||
| 
								 | 
							
								run on multiple platforms, for example PCs and Macintosh.
							 | 
						||
| 
								 | 
							
								<p>In the rest of the tutorial we will look at some additional utility
							 | 
						||
| 
								 | 
							
								functions, and a different way of using PortAudio that does not require
							 | 
						||
| 
								 | 
							
								the use of a callback function.</blockquote>
							 | 
						||
| 
								 | 
							
								<font size=+2><a href="http://www.portaudio.com/">home</a> | <a href="pa_tutorial.html">contents</a>
							 | 
						||
| 
								 | 
							
								| <a href="pa_tut_run.html">previous</a> |  <a href="pa_tut_util.html">next</a></font>
							 | 
						||
| 
								 | 
							
								</body>
							 | 
						||
| 
								 | 
							
								</html>
							 |