Performing unbuffered I/O on Windows
The CAkDefaultIOHookDeferred low-level I/O hook sample (located in WWISESDK/samples/SoundEngine/Windows/) opens files with FILE_FLAG_NO_BUFFERING and FILE_FLAG_OVERLAPPED flags. These flags, combined with correctly aligned memory, give optimal unbuffered I/O performance according to the Windows ...
- Do I really need to call ::VirtualAlloc() in my implementation of AK::VirtualAllocHook()?
Allocation hooks are called by the Wwise Memory Manager whenever it creates a pool. You need to implement all of them for a given platform (see the SDK documentation: Sound Engine Integration Walkthrough > Initialize the Different Modules of the Sound Engine > Memory Hooks). On Windows, A ...
- Audio frame size on Windows
On Windows and on the Mac, in normal quality mode (AkSoundQuality::AkSoundQuality_High), the audio frame size is 1024 samples at 48 KHz, which corresponds to about 21.3 milliseconds. In reduced quality mode (AkSoundQuality::AkSoundQuality_Low), the audio frame size is 1024 samples at 24 KHz, whi ...
- Why changing the focus while initializing the sound engine can make the sound engine to be silent?
(PC only) When initializing the sound engine, the game must provide a valid HWND to the initialization of the sound engine in the AkPlatformInitSettings. If you are using AK::SoundEngine::GetDefaultPlatformInitSettings() to initialize the parameters (which is a good thing by the way), it return ...
- Voice Volume: Can different PC soundcards affect my mix?
On PC, the Wwise Sound Engine does all the voice mixing in software, with our own custom code, and only outputs a single stereo or 5.1 channel voice to DirectSound. It is therefore highly unlikely that using some specific sound hardware would change the relative volume of voices. It is possible ...
