http://kb.gowwise.com en-us http://kb.gowwise.com ActiveKB NX support@audiokinetic.com Thu, 09 Sep 2010 07:44:42 CDT 20 http://kb.gowwise.com/questions/228/ http://kb.gowwise.com/questions/228/ This is because high-level logical instances of interactive music are not stopped when unloading banks. You stop hearing music simply because this logical instance fails to start playback of segme ... AK Xavier Buffoni Mon, 02 Aug 2010 15:06:55 GMT http://kb.gowwise.com/questions/117/ http://kb.gowwise.com/questions/117/ Objects in the Wwise sound engine are ref-counted: Soundbanks hold a reference to all their events, sound structures and media. Playing sounds hold a reference to their sound structure, and ... AK Xavier Buffoni Mon, 02 Aug 2010 15:00:10 GMT http://kb.gowwise.com/questions/220/ http://kb.gowwise.com/questions/220/ Voices may become virtual when their volume goes under threshold. For any given sound, the volume that is compared against the threshold is the real effective volume of all its audio channels, re ... AK Xavier Buffoni Tue, 20 Jul 2010 15:14:11 GMT http://kb.gowwise.com/questions/219/ http://kb.gowwise.com/questions/219/ This may be due to the fact that you did not upgrade your in-game version of the low-level I/O hook. You need to get the new sample (AkDefaultIOHookBlocking or AkDefaultIOHookDeferred) from $WWI ... AK Xavier Buffoni Wed, 28 Apr 2010 21:35:07 GMT http://kb.gowwise.com/questions/132/ http://kb.gowwise.com/questions/132/ Plug-in ID signification Wwise Plug-ins are identified, by a Company ID and Plug-in ID. Those IDs are defined in the Plug-ins XML file. The Company ID (attribute CompanyID on tags EffectPlugin, ... AK Francois Thibault Tue, 23 Mar 2010 21:00:21 GMT http://kb.gowwise.com/questions/208/ http://kb.gowwise.com/questions/208/ When a streaming sound becomes virtual, it stops requesting I/O transfers. In "From Beginning" mode, all its I/O buffers are flushed and the Stream Manager is able to use them for other sounds. ... AK Xavier Buffoni Thu, 04 Mar 2010 22:10:01 GMT http://kb.gowwise.com/questions/165/ http://kb.gowwise.com/questions/165/ Here's how we can estimate the latency between the time an event is posted and the time audio data starts being played back by the console. From the game thread, you call the SDK function PostE ... AK Benoit Beauchemin Thu, 25 Feb 2010 23:29:19 GMT http://kb.gowwise.com/questions/51/ http://kb.gowwise.com/questions/51/ The situation of a circular area or volumetric sound: First, In the attenuation settings, you can set a curve for spreading sound amongst speakers based on distance. Go in the attenuation view ... AK Alexandre Lessard Thu, 25 Feb 2010 22:08:55 GMT http://kb.gowwise.com/questions/207/ http://kb.gowwise.com/questions/207/ These articles explain how you can use multiple emitters to simulate sound sources emitted by large sources: http://kb.gowwise.com/questions/51/ and http://kb.gowwise.com/questions/142/. When i ... AK Xavier Buffoni Thu, 25 Feb 2010 21:55:32 GMT http://kb.gowwise.com/questions/206/ http://kb.gowwise.com/questions/206/ Multichannel sounds can be positioned in space using the 3D positioning tab just as well as mono sources, without downmixing to mono. In order to compute each source's channel's contribution t ... AK Xavier Buffoni Thu, 25 Feb 2010 21:21:01 GMT http://kb.gowwise.com/questions/52/ http://kb.gowwise.com/questions/52/ Technically, you cannot get the duration of an "event". The duration of an event will be based on multiple factors and those factors may change during the process of the event. For example, an e ... AK Alexandre Lessard Thu, 25 Feb 2010 20:19:12 GMT http://kb.gowwise.com/questions/205/ http://kb.gowwise.com/questions/205/ If soundbank loading or playback of a streamed file fails, the first step is to connect the Wwise tool to your game, start a capture, and look for error notifications (in yellow). If the error ... AK Xavier Buffoni Thu, 25 Feb 2010 20:05:29 GMT http://kb.gowwise.com/questions/201/ http://kb.gowwise.com/questions/201/ Overview Sound structures' advanced settings are specified in the "Advanced Settings" tab of the object property editor. They are used to limit the number of sounds playing at the same time, an ... AK Xavier Buffoni Thu, 25 Feb 2010 19:39:05 GMT http://kb.gowwise.com/questions/200/ http://kb.gowwise.com/questions/200/ Sounds converted to the Wwise Vorbis compression format need a seek table in order to be seeked into at arbitrary positions, whether they are streamed or in-memory.You may specify whether you want ... AK Xavier Buffoni Thu, 25 Feb 2010 15:48:40 GMT http://kb.gowwise.com/questions/195/ http://kb.gowwise.com/questions/195/ This is by design. If you don't plan enough memory for streaming, you will have starvation. It was a conscious design choice to favor having low priority sounds starve "a lot" and high priorit ... AK Xavier Buffoni Wed, 24 Feb 2010 19:13:25 GMT http://kb.gowwise.com/questions/199/ http://kb.gowwise.com/questions/199/ Continuous (sequence or random) containers automatically trigger playback of the next sound when the previous sound stops. Meanwhile, the "Under Volume Threshold" behavior is always applied on ind ... AK Xavier Buffoni Wed, 24 Feb 2010 19:08:36 GMT http://kb.gowwise.com/questions/193/ http://kb.gowwise.com/questions/193/ Lower Engine Pool Memory:The memory in this pool is used to play sounds. It is directly influenced by the number of sounds playing at the same time. It is also influenced by the number and type ... AK Mathieu Jean Wed, 24 Feb 2010 18:52:04 GMT http://kb.gowwise.com/questions/179/ http://kb.gowwise.com/questions/179/ Wwise does not provide any mechanism to interleave streams in order to reduce seeking time on disk, so you may quickly run out of I/O bandwidth if you use several streamed tracks in the same seg ... AK Xavier Buffoni Tue, 23 Feb 2010 14:47:06 GMT http://kb.gowwise.com/questions/176/ http://kb.gowwise.com/questions/176/ The internal workings of the interactive music engine are fairly complicated. Here are few concepts that will help you understand how it behaves. Active Segment The first thing you need to un ... AK Xavier Buffoni Mon, 22 Feb 2010 22:23:37 GMT http://kb.gowwise.com/questions/175/ http://kb.gowwise.com/questions/175/ Source (streaming) starvation often sounds awful in interactive music, because tracks may become unsynchronized. In the sound engine, streaming sources have implicit latency: they don't start p ... AK Xavier Buffoni Mon, 22 Feb 2010 21:53:29 GMT http://kb.gowwise.com/questions/174/ http://kb.gowwise.com/questions/174/ When posting an event (using PostEvent()), you may register a callback that will be called when the event has finished playing. For example, if you have a situation where you have a sound A tha ... AK Alexandre Lessard Mon, 22 Feb 2010 21:48:25 GMT http://kb.gowwise.com/questions/167/ http://kb.gowwise.com/questions/167/ Switches and states can both be used to determine what in a Switch container will be played. The main difference is the switch can be different for each game object of the game while the state ... AK Alexandre Lessard Mon, 22 Feb 2010 20:26:58 GMT http://kb.gowwise.com/questions/164/ http://kb.gowwise.com/questions/164/ On all platforms, there is one main Audio thread which does all the high-level audio handling: AK::EventManager thread. On most platforms, DSP and low-level audio data crunching is also execut ... AK Benoit Beauchemin Mon, 22 Feb 2010 20:07:11 GMT http://kb.gowwise.com/questions/163/ http://kb.gowwise.com/questions/163/ We do not currently support MP2/MP3 and have no plans to do so in the short term. It is also not currently possible to write a user codec plug-in with the SDK. We fully support Vorbis on all platf ... AK Benoit Beauchemin Mon, 22 Feb 2010 20:01:51 GMT http://kb.gowwise.com/questions/160/ http://kb.gowwise.com/questions/160/ Wwise Vorbis files seeking is limited to the seek table's granularity, specified in the Vorbis Encoder Parameters of the conversion settings (Edit... button). The target sample position is round ... AK Xavier Buffoni Mon, 22 Feb 2010 19:55:01 GMT http://kb.gowwise.com/questions/128/ http://kb.gowwise.com/questions/128/ The sound engine basically uses 2 distinct pools, one for the Wwise sound structures' metadata (Default pool), which consist of relatively small objects, and for the audio pipelines (Lower Engine ... AK Jacques Deveau Mon, 22 Feb 2010 19:22:48 GMT http://kb.gowwise.com/questions/131/ http://kb.gowwise.com/questions/131/ Yes, everything is occurring in a separate thread. There are some exceptions, but they shouldn't be a problem: Initialization and term functions of the sound engine are not thread safe and a ... AK Jacques Deveau Mon, 22 Feb 2010 17:02:49 GMT http://kb.gowwise.com/questions/130/ http://kb.gowwise.com/questions/130/ Yes this is possible. You can override the whole Wwise streaming manager by reimplementing the AK::IAkStreamMgr interface, but the easiest is of course to implement the Low-Level I/O, which is a s ... AK Jacques Deveau Mon, 22 Feb 2010 16:45:32 GMT http://kb.gowwise.com/questions/105/ http://kb.gowwise.com/questions/105/ The preprocessor define AK_OPTIMIZED must be added. It is used to compile out communication related code. Communication libraries don't exist in Release. AK Xavier Buffoni Thu, 18 Feb 2010 19:03:01 GMT http://kb.gowwise.com/questions/94/ http://kb.gowwise.com/questions/94/ Seeking timesWhenever a music segment should start playing in the middle of an audio clip, the underlying stream will be opened, read (for header parsing), then seeked to the appropriate place, th ... AK Xavier Buffoni Thu, 18 Feb 2010 17:33:22 GMT http://kb.gowwise.com/questions/93/ http://kb.gowwise.com/questions/93/ Note that the Segment Editor in Wwise displays PCM data at 48 KHz. Whenever the converted file is resampled, or compressed, the actual sample values will be different than what is displayed. One o ... AK Xavier Buffoni Thu, 18 Feb 2010 17:06:47 GMT http://kb.gowwise.com/questions/92/ http://kb.gowwise.com/questions/92/ Do not confuse "looping segments" with "looping audio clips inside segments". Looping an audio clip inside a segment means that the user has stretched the clip that appears in the Segment Editor ... AK Xavier Buffoni Thu, 18 Feb 2010 16:56:26 GMT http://kb.gowwise.com/questions/87/ http://kb.gowwise.com/questions/87/ In order to use file packages (created with the AK File Packager or any other tool), you need to write the Low-Level I/O code to handle file packages. Basically, it needs to specify the offset of ... AK Xavier Buffoni Wed, 17 Feb 2010 19:36:56 GMT http://kb.gowwise.com/questions/85/ http://kb.gowwise.com/questions/85/ AK::StreamMgr::IAkIOHookBlocking|Deferred::Write() is needed by the default stream manager's implementation of AK::IAkStdStream::Write(). You need to implement it only if you use this service, or ... AK Xavier Buffoni Wed, 17 Feb 2010 19:30:24 GMT http://kb.gowwise.com/questions/84/ http://kb.gowwise.com/questions/84/ The stream manager should have already buffered the stream a little bit before it is asked for data. Whenever the sound engine asks for data, and the stream manager has no data ready, there will b ... AK Xavier Buffoni Wed, 17 Feb 2010 19:28:01 GMT http://kb.gowwise.com/questions/83/ http://kb.gowwise.com/questions/83/ In Wwise's profiler, open the "Streams" tab. There you will see all streams that currently exist in the Stream Manager, including streamed audio files and SoundBanks. The "buffer size" column repr ... AK Xavier Buffoni Wed, 17 Feb 2010 19:24:17 GMT http://kb.gowwise.com/questions/81/ http://kb.gowwise.com/questions/81/ Audiokinetic's default I/O scheduler works this way: among all the streams that require an I/O transfer, it chooses the one that has the shortest deadline (regarding clients of the stream manager) ... AK Xavier Buffoni Wed, 17 Feb 2010 19:08:42 GMT http://kb.gowwise.com/questions/80/ http://kb.gowwise.com/questions/80/ Audiokinetic's default stream manager creates a memory pool to perform I/O for each device (created using AK::CreateDevice()). These pools appear in the Wwise profiler under the name "Stream I/O". ... AK Xavier Buffoni Wed, 17 Feb 2010 19:05:52 GMT http://kb.gowwise.com/questions/79/ http://kb.gowwise.com/questions/79/ Different I/O devices should be created (using AK::StreamMgr::CreateDevice()) for each physical device. At the Stream Manager level (high-level), I/O devices are in fact scheduler threads, each wi ... AK Xavier Buffoni Wed, 17 Feb 2010 19:00:17 GMT http://kb.gowwise.com/questions/78/ http://kb.gowwise.com/questions/78/ The sound engine obtains streaming data from the Stream Manager. Audiokinetic's default stream manager implements the AK::IAkStreamMgr interface, which is intended to schedule I/O requests in an o ... AK Xavier Buffoni Wed, 17 Feb 2010 18:49:45 GMT http://kb.gowwise.com/questions/59/ http://kb.gowwise.com/questions/59/ The most common mistake concerning this is to forget that the bus will ignore any RTPC that is set for a specific game object.Make sure that no game object was specified when passing the RTPC to ... AK Alexandre Lessard Wed, 17 Feb 2010 16:50:23 GMT http://kb.gowwise.com/questions/58/ http://kb.gowwise.com/questions/58/ The Game has to feed the sound engine the parameters for obstruction and occlusion. Systematic ray-tracing for every sound at every frame can (will) be very CPU expensive for games, and that is ... AK Alexandre Lessard Wed, 17 Feb 2010 16:49:11 GMT http://kb.gowwise.com/questions/55/ http://kb.gowwise.com/questions/55/ Yes you can.The sound engine I/O system is completely overridable / plug-in-able. Also, the implementation of the Stream Manager rests on a set of interfaces, referred to as the Low-Level IO, wh ... AK Alexandre Lessard Wed, 17 Feb 2010 16:34:51 GMT http://kb.gowwise.com/questions/137/ http://kb.gowwise.com/questions/137/ If you try to connect Wwise to your game but the computer/console does not appear in the Remote Connections dialog, verify the following: Communication is properly initialized in your game. See ... AK Audiokinetic Admin Fri, 02 Oct 2009 20:04:56 GMT http://kb.gowwise.com/questions/187/ http://kb.gowwise.com/questions/187/ Using a game object pool seems to be a good idea at first glance. You would reserve a fixed amount of object at startup thus fixing the amount of memory used by those objects. It would ensure th ... AK Mathieu Jean Thu, 26 Mar 2009 19:10:47 GMT http://kb.gowwise.com/questions/152/ http://kb.gowwise.com/questions/152/ The default size of the internal memory pools of the sound engine are very large only to ensure that anyone who tries the sound engine for the first time has enough resources to run their worst-c ... AK James Duff Tue, 17 Mar 2009 17:36:25 GMT http://kb.gowwise.com/questions/118/ http://kb.gowwise.com/questions/118/ We do not have specific support for VOIP in Wwise. We do however provide a generic method of getting audio data into Wwise. Your best bet here is to take a look at an SDK Source Plug-in sample ca ... AK Jacques Deveau Wed, 04 Feb 2009 15:59:01 GMT http://kb.gowwise.com/questions/185/ http://kb.gowwise.com/questions/185/ When using sample accurate transitions, the Sound Engine guarantees that two or more sounds will play back to back in a sample accurate way, by stitching the two source files. But performing mul ... AK Alexandre Lessard Tue, 03 Feb 2009 13:55:41 GMT http://kb.gowwise.com/questions/183/ http://kb.gowwise.com/questions/183/ The Low-Level I/O API has changed thoroughly between Wwise 2008.3 and 2008.4. This document will help you migrate your implementation. There are 3 things you can do:1) If you were using the def ... AK Xavier Buffoni Wed, 03 Dec 2008 21:05:07 GMT http://kb.gowwise.com/questions/177/ http://kb.gowwise.com/questions/177/ States Are Global States are global to a project. The states used in the interactive music hierarchy go through the same mechanism as those of the actor-mixer hierarchy. A music object that is ... AK Xavier Buffoni Thu, 13 Nov 2008 22:20:39 GMT http://kb.gowwise.com/questions/178/ http://kb.gowwise.com/questions/178/ You should avoid stacking up Music Switch Containers. Although it is supported, it might not behave as you expect. Music switch containers are transition schedulers, which Transition Matrix may ... AK Xavier Buffoni Thu, 13 Nov 2008 22:19:31 GMT http://kb.gowwise.com/questions/162/ http://kb.gowwise.com/questions/162/ The default memory pools contain a lot of different things. One of these thing is the structural information of the audio to be played Each sound that can potentially be played, even when s ... AK Alexandre Lessard Tue, 12 Aug 2008 15:57:36 GMT http://kb.gowwise.com/questions/133/ http://kb.gowwise.com/questions/133/ Wwise provides some tools to enhance the workflow to import large amounts of assets and easily create many simple audio structures in the editor.A typical proposed workflow could go as follows:- U ... AK Francois Thibault Wed, 02 Apr 2008 19:18:33 GMT http://kb.gowwise.com/questions/129/ http://kb.gowwise.com/questions/129/ Yes this is possible. You can either override the whole Wwise Memory Manager by implementing the functions of the AK::MemoryMgr namespace(AkMemoryMgr.h) inside a static library named AkMemoryMgr.l ... AK Jacques Deveau Fri, 28 Mar 2008 20:05:34 GMT http://kb.gowwise.com/questions/116/ http://kb.gowwise.com/questions/116/ Unfortunately, there is no easy way to extract this information, especially since any event can point into any bank. AK Jacques Deveau Fri, 28 Mar 2008 19:42:11 GMT http://kb.gowwise.com/questions/115/ http://kb.gowwise.com/questions/115/ The function PostEvent( ... ) will return AK_INVALID_PLAYING_ID in case of an error. When you are receiving AK_INVALID_PLAYING_ID, it means that the post event request was not successful, and it ... AK Jacques Deveau Fri, 28 Mar 2008 19:41:20 GMT http://kb.gowwise.com/questions/114/ http://kb.gowwise.com/questions/114/ Unfortunately, Wwise does not currently let you automatically add information in the soundbanksInfo.xml file. When generating sound banks with the option: "Generate sound bank content file" sele ... AK Jacques Deveau Fri, 28 Mar 2008 19:40:11 GMT http://kb.gowwise.com/questions/113/ http://kb.gowwise.com/questions/113/ Beyond querying SoundFrame connected directly to Wwise, you would need to parse generated text and .BNK files to retrieve this information. AK Jacques Deveau Fri, 28 Mar 2008 19:38:58 GMT http://kb.gowwise.com/questions/112/ http://kb.gowwise.com/questions/112/ The LoadBank() that loads from memory does it by reading data in-place, without modifying it. Audio Data is registered in-place and not copied or moved. Meta Data is parsed and related objects a ... AK Jacques Deveau Fri, 28 Mar 2008 19:37:23 GMT http://kb.gowwise.com/questions/110/ http://kb.gowwise.com/questions/110/ No, we do not cache any decompressed Vorbis data into memory. All Vorbis decompression is done on the fly. AK Jacques Deveau Fri, 28 Mar 2008 19:33:33 GMT http://kb.gowwise.com/questions/106/ http://kb.gowwise.com/questions/106/ Whenever you call a function on the sound engine's API, you actually push a command into a queue. Even AK::SoundEngine::RenderAudio() simply pushes a message "process previous commands" into the q ... AK Xavier Buffoni Wed, 26 Mar 2008 19:39:53 GMT http://kb.gowwise.com/questions/102/ http://kb.gowwise.com/questions/102/ States are global, whereas Switches are bound to game objects. Usually, use a State whenever the state of the game needs to have an effect on all sound instances. For example, the game would set t ... AK Xavier Buffoni Wed, 26 Mar 2008 19:36:38 GMT http://kb.gowwise.com/questions/99/ http://kb.gowwise.com/questions/99/ "Source" (I/O) starvation occurs because the I/O throughput could not meet the requirements of the sound engine for a specific streaming sound. "Voice" (CPU) starvation occurs because the sound en ... AK Xavier Buffoni Wed, 26 Mar 2008 19:24:24 GMT http://kb.gowwise.com/questions/91/ http://kb.gowwise.com/questions/91/ The music engine is the high-level engine that handles complex, high-level scheduling of music segments of the interactive music hierarchy. AK Xavier Buffoni Wed, 26 Mar 2008 18:09:52 GMT http://kb.gowwise.com/questions/90/ http://kb.gowwise.com/questions/90/ The only way to loop a music Segment is by making it a child of a Playlist container. It is then possible to specify transition rules between segments of the Playlist (like playing the pre-entry/p ... AK Xavier Buffoni Wed, 26 Mar 2008 18:09:20 GMT http://kb.gowwise.com/questions/89/ http://kb.gowwise.com/questions/89/ In order to successfully post events of the Interactive Music Hierarchy, you must initialize the music engine separately, using AK::MusicEngine::Init(), after you successfully initialized the soun ... AK Xavier Buffoni Wed, 26 Mar 2008 18:08:55 GMT http://kb.gowwise.com/questions/77/ http://kb.gowwise.com/questions/77/ It is possible to turn on/off streaming for a sound on a per-platform basis, by unlinking the Stream checkbox in the General Settings tab of the Sound Property Editor on a chosen platform. AK Xavier Buffoni Wed, 26 Mar 2008 15:39:46 GMT http://kb.gowwise.com/questions/72/ http://kb.gowwise.com/questions/72/ All of the static libraries shipped by Audiokinetic are built using the following attirubutes:Debug librairies : Monitoring and profiling available, no optimizationsProfile libraries : Monitorin ... AK Francois Thibault Wed, 19 Mar 2008 18:14:42 GMT http://kb.gowwise.com/questions/70/ http://kb.gowwise.com/questions/70/ Source starvation means that somehow the input stream starves probably because the throughput obtained from the stream manager is insufficient for some reason (e.g. due to long seek times on DVD ... AK Francois Thibault Wed, 19 Mar 2008 18:12:04 GMT http://kb.gowwise.com/questions/57/ http://kb.gowwise.com/questions/57/ No.The game has to feed the sound engine with the parameters to be applied based on the geometry of rooms. AK Alexandre Lessard Wed, 19 Mar 2008 14:30:28 GMT http://kb.gowwise.com/questions/60/ http://kb.gowwise.com/questions/60/ You can either use the event name (strings) directly or you can use Event IDs.The overhead cost of using strings is pretty low (The sound engine does not keep strings internally, it is using a h ... AK Alexandre Lessard Wed, 19 Mar 2008 13:47:25 GMT