Microsoft Technology Licensing, LLC

Todor J Fay

Brian Lloyd Schmidt

James F Geist, Jr

Dugan O Porter

Robert A Williams

Forrest Power Trepte

David G Yackley

Francisco Javier Wong

An audio buffer includes one or more audio effect resources that modify audio data received from an audio data source. A first audio effect resource in the audio buffer receives audio data from the audio data source and modifies the audio data to generate a stream of audio data. Subsequent audio effect resource(s) in the audio buffer receives the stream of audio data from the first audio effect and further modifies the audio data to generate a stream of modified audio data. The stream of modified audio data can then routed from the audio buffer to a second audio buffer, or communicated to an audio rendering component that produces an audio rendition corresponding to the modified audio data.

Audio buffers with audio effects

An audio generation system includes a buffer manager that creates audio buffers to receive streams of audio data from an audio data source, such as from a synthesizer component for example. The audio buffers include sink-in audio buffers that receive one or more streams of audio data when the streams of audio data are requested by the buffer manager for input to the sink-in audio buffers. The audio buffers also include mix-in audio buffers that receive streams of audio data from one or more of the sink-in audio buffers, and from any number of other mix-in audio buffers. The audio generation system includes an audio component, such as a speaker for example, that receives audio data from the sink-in audio buffers and produces an audio rendition corresponding to the audio data.

Dynamic audio buffer creation

An audio buffer configuration file is a data structure of configuration information that includes an audio buffer identifier to uniquely identify audio buffers that are instantiated from the configuration information. The information can include a buffer identifier to identify the buffer as a sink-in audio buffer that receives a stream of audio data from an audio data source, or as a mix-in audio buffer that receives one or more streams of audio data from other audio buffers. Further, the information can include logical bus identifiers to uniquely identify one or more logical buses that correspond to the audio buffer, where an individual logical bus streams audio data to the audio buffer when the audio buffer is created. The configuration information can also include an audio effects list to identify one or more audio effects that are instantiated as components of the audio buffer when the audio buffer is instantiated.

Audio buffer configuration

An audio generation system includes a performance manager, which is an audio source manager, and an audio rendition manager to produce a rendition corresponding to an audio source. An application program provides the audio source manager and the audio rendition manager. The audio source manager receives audio content from an audio source, provides one or more audio content components that generate event instructions from the received audio content, and processes the event instructions to produce audio instructions that are provided to the audio rendition manager. The audio rendition manager provides processing components to process the audio instructions, including a synthesizer component that receives the audio instructions and generates audio sound wave data, and audio buffers that process the audio sound wave data.

Audio generation system manager

An application program provides a performance manager and an audio rendition manager to produce a rendition corresponding to an audio source. The performance manager receives audio data from the audio source and instantiates audio data processing components to process the audio data. The audio rendition manager receives the audio data from the performance manager and instantiates audio data processing components to further process the audio data, including a synthesizer component that generates audio sound wave data, and audio buffers that process the audio sound wave data. The audio data processing components are instantiated as objects having an interface that can be called by the application program. The application program requests a programming reference to an interface of an audio data processing component in the performance manager, or in the audio rendition manager, by calling an interface method of the performance manager or the audio rendition manager, respectively.

Accessing audio processing components in an audio generation system

A script file includes a text section that has a text label to designate a point during execution of the script sequence when an audio rendition of a video event is to be initiated. The script file also includes a container that maintains audio content within the script file. The audio content is identified in the container with a content label that corresponds to a text label in the text section. The audio content is initiated to be generated as the audio rendition at the designated point during execution of the script sequence when the script file is executed and when a script processor determines that the content label corresponds to the text label.

Scripting solution for interactive audio generation

An audio generation system includes MIDI track components that generate event instructions for MIDI audio data received from a MIDI audio data source, and includes audio wave track components that generate playback instructions for audio wave data maintained in an audio wave data source. A segment component plays one or more of the MIDI track components to generate the event instructions, and plays one or more of the audio wave track components to generate the playback instructions. An audio processing component, such as a synthesizer component, receives the event instructions and the playback instructions, and generates an audio rendition corresponding to the MIDI audio data and/or the audio wave data.

Audio wave data playback in an audio generation system

An audio buffer includes one or more audio effects that modify audio data received from an audio data source. A first audio effect in the audio buffer receives audio data from the audio data source and modifies the audio data to generate a stream of audio data. Subsequent audio effects in the audio buffer receives the stream of audio data from the first audio effect and further modifies the audio data to generate a stream of modified audio data. The stream of modified audio data is then routed from the audio buffer to a second audio buffer, or communicated to an audio rendering component that produces an audio rendition corresponding to the modified audio data.

An audio generation system produces streams of audio wave data and routes the audio wave data to audio buffers via logic buses that correspond respectively to the audio buffers. A logic bus, or buses, are assigned to an audio wave data source. Additionally, a logic bus corresponds to an audio buffer. Thus, any streams of audio wave data generated by the audio wave data source are routed to the audio buffer corresponding to the logic bus. A logic bus can receive streams of audio wave data from multiple sources, and route the multiple audio wave data streams to an audio buffer. Additionally, an audio buffer can receive streams of audio wave data from multiple logic buses.

Synthesizer multi-bus component

An audio generation system receives audio instructions that have instruction channel designations and dynamically allocates synthesizer channels in groups of sixteen channels that support the MIDI standard to receive the audio instructions. The synthesizer channels are assigned to receive the audio instructions such that audio instructions having the same instruction channel designations are assigned to be received by synthesizer channels in different synthesizer channel groups. The audio instructions are routed to the synthesizer channels in accordance with the instruction channel designations of the audio instructions and the synthesizer channel assignments via mapping channels in a mapping component, where an individual mapping channel corresponds to a particular synthesizer channel.

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Todor J Fay