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Using ambisonics for head-mounted devices
Wwise Help
To ensure ambisonic representations rotate with respect to a head-mounted device (HMD), the HMD head-tracking data must be continuously passed to Wwise by the game engine as the listener orientation via the SetListenerPosition() API. Sounds whose positioning is set to 3D are attached to game objects. When they are mixed into an ambisonic bus, the encoding angles depend on the game object position ...
Ambisonics as sound fields
Wwise Help
Ambisonic sounds, either recorded or synthetic, are great for implementing ambient sounds. Although higher order ambisonics are typically used in the context of a game’s intermediate spatial representation, low orders are usually sufficient for ambient sounds. When used as a sound field with 3D Spatialization, ambisonics, like other multichannel formats, collapses into a mono point source if its spread ...
Ambisonics
Sample Project
The Ambisonics Work Unit in the Actor-Mixer Hierarchy includes three examples of moving ambient sounds to demonstrate the spatial audio you can expect with ambisonics output. The multichannel setup necessary to do ambisonics justice (you must at least have some height channels) is not a commonly available Sound Engine Audio System. Consequently, these examples are routed to an “Ambisonics” ...
Ambisonics
Meta XR Audio Plug-in
This section explains how to render ambisonic sounds using the Meta XR Audio SDK.By the end of this document, you’ll be able to:Route ambisonic sounds through the Meta XR Audio Plug-in.Understand the ambisonic behaviors of the Meta XR Audio Plug-in.NoteBefore you can render ambisonic sounds using the Meta XR Audio Plug-in for Wwise, make sure to set up the sink plug-in. See Getting Started.ImplementationWith ...
ComputeAmbisonicsEncoding
Wwise SDK
Wwise SDK 2024.1.7 AKIAkGlobalPluginContext ◆ ComputeAmbisonicsEncoding() virtual void AK::IAkGlobalPluginContext::ComputeAmbisonicsEncoding ( AkReal32 in_fAzimuth, AkReal32 in_fElevation, AkChannelConfig in_cfgAmbisonics, AK::SpeakerVolumes::VectorPtr ...
Wwise SDK 2024.1.7 AKIAkGlobalPluginContext ◆ ComputeWeightedAmbisonicsDecodingFromSampledSphere() virtual AKRESULT AK::IAkGlobalPluginContext::ComputeWeightedAmbisonicsDecodingFromSampledSphere ( const AkVector in_samples[], AkUInt32 in_uNumSamples, AkChannelConfig in_cfgAmbisonics ...
AK_MAX_AMBISONICS_ORDER
Wwise SDK
Wwise SDK 2024.1.7 AKSoundEngineCommonAkSpeakerConfig.h ◆ AK_MAX_AMBISONICS_ORDER #define AK_MAX_AMBISONICS_ORDER (5) Definition at line 215 of file AkSpeakerConfig.h.
7th Order Ambisonics through Channel Router?
Questions et réponses
Hi everybody, Is there a way to deliver 7th (or 5th, 6th) Order Ambisonics using the Channel Router? I've been searching for documentation about this, but I'm unable to find. Any input is welcome. :) Regards.
How can I "force" Wwise to output in an Ambisonics configuration?
Questions et réponses
Hi, I'm trying to output Wwise into a 3rd order Ambisonics configuration, however, I cannot output more than 8 channels (7.1) as any configuration with a channel count higher than this is not visible. There is the "Use audio device ShareSet" option however, these sharesets seem to always default to the highest channel count that Windows perceives the audio device as. Now, the Ambisonics configuration ...
Ambisonics conversion settings - AT9 causing problems?
Questions et réponses
Hey We're doing some work with ambisonic files in Wwise, and we've noticed that using Atrac 9 conversion settings on PS4, with PSVR seems to screw with the ambisonics behaviour. Is anyone else using Ambisonics in Wwise with compressed file formats? Cheers
Ambisonics attenuates sounds from the rear
Questions et réponses
My setup:I have a 3D Wwise event (game-defined position) It's playing from an AkAmbient actor in UE4It's routed in Wwise to an ambisonics 3-3 buswhich goes to a binaural bus that uses sce_Audio3d (this bus is also set to Ambi 3-3)and then to the master bus as stereo (Wwise audio output set to Stereo Speakers)What's wrong:When the listener turns away from the emitter, ...
Is it possible to decode Ambisonics AmbiX directly to irregular Loudspeaker Array in Unity?
Questions et réponses
Hi, is there a way to directly decode a 4th order AmbiX .wav file to a custom speaker setup with specific speaker locations using Wwise in Unity? So far I have only seen the option to go from Ambisonic domain to binaural, i.e. headphones, but I would like to play the decoded Audio directly on a 32 channel ASIO interface. Any hints how I could accomplish this? Didn't find this in the Documentation.
Is there a way to dynamically control the volume in a particular direction of Ambisonics sound?
Questions et réponses
In a situation where Ambisonics waveforms are sounding, Is there a way in Wwise to dynamically lower the forward volume of the Ambisonics under certain conditions, for example? The only way I can think of is to create a Wwise effects plugin that works that way. That is very challenging for me. Please help.
Ambisonics decoding to stereo is now completely symmetrical, means what exactly?
Questions et réponses
In the changelog for 2019.2.0 it sais;"WG-47232 Native ambisonics decoding to stereo is now completely symmetrical regardless of whether sounds come from the front or the back. Previously, sounds coming exclusively from the back were silenced.".Does this mean that sounds positioned behind you will always play as loud as sounds in front of you? If that is the case, how will you be able to differentiate ...
Check available Frames for Sink Plugin
Questions et réponses
Hi everyone I am writing a Wwise sink plugin which creates a jackaudio client. I am using this to allow to stream ambisonics audio data (5th order) to my speaker array without automatic downmixing. I managed to make things work in the case where the buffer of the Jack server is smaller or equal to the buffer of Wwise. However I am struggeling to cope with the case where the Jack server buffer is larger ...
How can I rotate ambisonic file in Unity3D?
Questions et réponses
Hi, I am trying to add 1st order ambisonic files into my unity project for ambience. I have tested this out with the sample project, using the ambisonic material provided. At the moment I can hear the audio, however the sound files are not rotating based on the player rotation. I have 3D positioning enabled in Wwise and a spatial audio listener in Unity. Am I missing anything? Thanks, Dan
Conversion Settings - Options to reduce channel count for conversion from higher to lower order ambisonics
Questions et réponses
Hello, we're doing some work with ambisonic content in wwise at the moment and something that I think would be super useful is an option in the conversion settings to specify 4, 9 or 16 channels for the converted file. This would mean designers could include higher order (16 channel TOA) ambisonic content in the project, and just by using a conversion setting shareset, convert down to 2OA (9 channels) ...
Resonance orientation and positioning
Questions et réponses
Any advice to implement Orientation and Positioning features for Ambisonic audio files using the Resonance plugin? It seems that the Resonance plugin works only with the 3D spatialisation set to "None" and not when set to "Position" or "Position + Orientation" Any advice? Cheers, Balandino.
Ambisonic recording of sound scene
Questions et réponses
I would like to record an ambisonic audio file, which can be used in fx. youtube, where the user can interact with the video. This meaning that it should be the whole auditory scene, and not as heard through the ears of the protagonist. Is this possible? Also will it be a problem if the auditory scene recorded contains an ambix ambisonic file? Finally I would like a personal ambisonic IR on some of ...
Problem with Ambisonics (file been converted to mono?)
Questions et réponses
Hi! I have some questions and I cannot find the answers on the internet nor the manual, so I decided to write here for some help. For our project, we need to play 2 ambisonic files (not at the same time. They are 1st order ambisonics. I've tryed AmbiX and FuMa). I followed all the instructions and also tried to copy all the parameters of the ambisonic section of the SampleProject session, but I ...