![]() ![]() The latency of the implementation has improved in later releases. Android 2.3 exposes OpenSL ES 1.0 as part of their NDK.OpenSL ES 1.1 Specification was released 18 January 2011.Minor release 1.0.1 followed 24 September 2009.OpenSL ES 1.0 Specification was released 24 March 2009.The current chair of the OpenSL ES working group is Erik Noreke. OpenSL ES is managed by the non-profit technology consortium Khronos Group. Or adapt to the available functionality as given by the profiles in the device it is running on.Īn application developer can also specify both the minimum and the optimal profile requirements. ![]() The application developer can then design their application to either work with only the common parts of the profiles, To avoid fragmentation, OpenSL ES is divided up into three profiles:Įach profile is designed for the respective device needs with a specific set of audio functionalities.Ī vendor can choose to be conformant with only one or with any combination of profiles.Īn application can query the OpenSL ES implementation to find out which profiles are supported. It is developed primarily for application developers in the mobile and gaming industry. The design goal of OpenSL ES is to give application developers access to advanced audio features such as 3D positional audioĪnd MIDI playback while striving for easy application porting between manufacturers and platforms. Together the two APIs give access to a wide range of functionality of the device's multimedia engine. The object model is shared with OpenMAX AL, and a device manufacturer can choose to implement one or both of the APIs. OpenSL ES utilizes an object oriented design to give application developers access to the audio functionality. The features of Audio Playback and Recording and Basic MIDI are common with OpenMAX AL. Interactive music and ringtones using SP-MIDI, Mobile DLS, Mobile XMF.Music experience enhancing effects including bass boost and environmental reverb.3D audio effects including 3D positional audio.Eliminates need to develop additional player functionality.The OpenSL ES API has five major features: * Full Featured Audio Player with Integrated Time Stretching and Pitch Shifting: Built-in resampling, looping, cue points and HLS audio streaming. Saves time and money in implementation and development. * Works 'Out of the Box': Fastest way to get started on interactive audio app. Switching back and forth between the time domain and the frequency domain has never been easier or faster. * Fastest FFT for Audio: Polar FFT 2x faster than vDSP. * No Interrupt Handling Needed: Superpowered operates independently of mobile OS media servers. * iOS, Android and OSX Update Shock Proof: OS updates won't break audio code. * HTTP Live Streaming to Android, iOS and OSX: No audio drop-outs. Same audio features and quality on all devices starting from Android 3.0 and iOS 5.1 to present. * Consistent API and Feature-Set Across Android and iOS versions: No more fragmentation issues. * Not a software wrapper Standalone audio processing: Patent-pending Superpowered digital signal processing technology super-powers performance. Minimum 4x battery life improvement compared to OpenSL ES and 2x better than Core Audio. * Radically Efficient Power Consumption: Outstanding power-to-watt ratio. Integrates with existing processing code. * Simple Orthogonal API: Removes messy connection and unnecessary audio graph abstractions. * 100% Code Resuability: Copy-Paste code between iOS, Android and OSX. ![]() * Lowest Latency Audio Processing on Mobile Devices: Faster than OpenSL ES, Core Audio or vDSP/Accelerate. ![]()
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