From 1c8dcf10265b9e8205dc94e6575d06fccbd6c07a Mon Sep 17 00:00:00 2001 From: Gary Scavone Date: Fri, 11 Oct 2013 01:52:05 +0200 Subject: Release 4.0.3 tarball --- doc/html/apinotes.html | 2 ++ 1 file changed, 2 insertions(+) (limited to 'doc/html/apinotes.html') diff --git a/doc/html/apinotes.html b/doc/html/apinotes.html index 983f063..5692bfe 100644 --- a/doc/html/apinotes.html +++ b/doc/html/apinotes.html @@ -20,9 +20,11 @@ The Apple CoreAudio API is designed to use a separate callback procedure for eac It is not possible to have multiple instances of RtAudio accessing the same CoreAudio device.

The RtAudio Jack support can be compiled on Macintosh OS-X systems, as well as in Linux.

Windows (DirectSound):

+The configure script provides support for the MinGW compiler. DirectSound support is specified with the "--with-ds" flag.

In order to compile RtAudio under Windows for the DirectSound API, you must have the header and source files for DirectSound version 5.0 or higher. As far as I know, there is no DirectSoundCapture support for Windows NT. Audio output latency with DirectSound can be reasonably good, especially since RtAudio version 3.0.2. Input audio latency still tends to be bad but better since version 3.0.2. RtAudio was originally developed with Visual C++ version 6.0 but has been tested with .NET.

The DirectSound version of RtAudio can be compiled with or without the UNICODE preprocessor definition.

Windows (ASIO):

+ASIO support using MinGW and the configure script is specified with the "--with-asio" flag.

The Steinberg ASIO audio API allows only a single device driver to be loaded and accessed at a time. ASIO device drivers must be supplied by audio hardware manufacturers, though ASIO emulation is possible on top of systems with DirectSound drivers. The numberOfBuffers parameter to the RtAudio::openStream() function has no affect in this implementation.

A number of ASIO source and header files are required for use with RtAudio. Specifically, an RtAudio project must include the following files: asio.h,cpp; asiodrivers.h,cpp; asiolist.h,cpp; asiodrvr.h; asiosys.h; ginclude.h; iasiodrv.h; iasiothiscallresolver.h,cpp. The Visual C++ projects found in /tests/Windows/ compile both ASIO and DirectSound support.

The Steinberg provided asiolist class does not compile when the preprocessor definition UNICODE is defined. Note that this could be an issue when using RtAudio with Qt, though Qt programs appear to compile without the UNICODE definition (try DEFINES -= UNICODE in your .pro file). RtAudio with ASIO support has been tested using the MinGW compiler under Windows XP, as well as in the Visual Studio environment.

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