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AUDIO SOLUTION
FOR ANDROID
OVERVIEW
SOLUTION
AM3D’s audio solution for Android enhances the gaming experience with amazing 3D positional audio. The user interface is
supplemented with dynamic 3D audio effects, and the media
player is significantly improved with enriched playback sound as
well as 3D surround sound. The solution is software-based and
easily integrated into Android.
AM3D’s audio solution for Android provides both advanced 3D audio
rendering capabilities as well as audio enhancement for headphones
and loudspeakers.
Android is the most popular operating system for smartphones and
it is becoming more advanced. Amazing functionality and applications can be created. This fact combined with the rapid increase
of CPU power makes new opportunities for improving end-user
experience a reality.
Today 3D graphics is utilized in many applications e.g. games, user
interfaces and even 3D displays are available in smartphones.
These rich visual capabilities are a core element in bringing today’s
products alive.
Unfortunately, the audio performance in smartphones does not offer the same quality due to the limitations of built-in micro
speakers.
ZIRENE® SOUND overcomes these limitations by adding audio
enhancement features to optimise playback sound quality in HD
quality. 3D Surround creates a perception of immersive sound and
Voice Enhancement boosts the voice so it is clear and audible.
ZIRENE® 3D AM3D’s 3D audio engine is embedded into the Android
OpenSL ES implementation. The implementation realizes the missing
3D audio functionality in the Android OpenSL ES implementation. As
a result, the OpenSL ES API can be utilized for e.g. game development to create advanced 3D audio rendering.
ZIRENE® SOUND AM3D’s audio enhancement engine is embedded
into Android and delivers audio processing in HD sound quality.
Individual settings can be created for internal loudspeakers and connected devices e.g. headphones to improve playback sound quality
and apply virtual surround sound to music and movie content. The
solution creates a unique surround sound experience for mono,
stereo and multi-channel input.
ZIRENE® SOUND Control Panel An audio control panel makes it possible for the end-user to create individual audio settings for different
playback device, e.g. headphones. See figure 1.
ZIRENE® 3D brings the product and user experience on Android
devices alive with dynamic 3D audio effects.
In addition to the ZIRENE software, AM3D offers tuning tools for
quick and easy adaption of the software to each device model.
ADVANTAGES
•
Enhanced gaming experience and improved user interface with 3D audio
•
Enhanced playback sound quality and enriched multi-channel 3D Surround
•
Flexible end-user control panel to alter audio enhancement settings
•
3D audio and 3D Surround can be combined with head
tracking for e.g. HMD
•
Scalable solution where 3D audio can be combined with audio enhancement
AM3D A/S · Langagervej 6 · DK-9220 Aalborg, Denmark · Phone +45 9934 9800 · www.am3d.com · email: [email protected]
AUDIO INTEGRATION INTO ANDROID
INTEGRATION
ZIRENE® 3D can be integrated in the Android OS by utilizing the
build-in OpenSL ES API. The 3D audio engine is used to implement
the missing 3D audio functionality of the Android OpenSL ES API.
This solution consists of shared libraries containing the audio
processing engine.
ZIRENE® SOUND is integrated in the Android OS by utilizing an
Android service to control the audio processing engine. An .XML file
is used for easy configuration. Applications e.g. media players, tuning tool and the dedicated end-user control panel can request the
service to modify settings.
Alternatively, ZIRENE® 3D and ZIRENE® SOUND can be integrated
into an Android application by embedding the audio processing
engines.
The solution is designed to run on the application processor using
assembly optimized code targeted at various CPU cores e.g. ARM.
For Qualcomm platforms the audio enhancement processing can be
off-loaded in the Qualcomm Hexagon DSP.
Figure 1: ZIRENE® SOUND control panel for end-user
ABOUT AM3D
AM3D is a provider of world-class audio technology providing
software solutions for audio enhancement and 3D audio for missioncritical solutions, mobile devices, in-car and home entertainment
systems. AM3D holds several patents on audio technologies.
AM3D has offices in Denmark, Japan, South Korea and Taiwan. AM3D
is owned by Nordjyske which has more than 2,000 employees and a
history that dates back to 1767. AM3D A/S was established in 1997 as
a commercial offspring of research activities at Aalborg University in
Denmark.