(PECL openal >= 0.1.0)
openal_buffer_loadwav — Load a .wav file into a buffer
$buffer, string $wavfile): boolbufferAn Open AL(Buffer) resource (previously created by openal_buffer_create()).
wavfilePath to .wav file on local file system.
成功時(shí)返回 true， 或者在失敗時(shí)返回 false。