System for rendering and playback of object based audio in various listening environments
Embodiments are described for a system of rendering object-based audio content through a system that includes individually addressable drivers, including at least one driver that is configured to project sound waves toward one or more surfaces within a listening environment for reflection to a listening area within the listening environment; a renderer configured to receive and process audio streams and one or more metadata sets associated with each of the audio streams and specifying a playback location of a respective audio stream; and a playback system coupled to the renderer and configured to render the audio streams to a plurality of audio feeds corresponding to the array of audio drivers in accordance with the one or more metadata sets.
1. A speaker system for playback of audio content in a listening environment, comprising:
an enclosure;
a microphone configured to measure an acoustic characteristic of the listening environment;
a plurality of individually addressable drivers placed within the enclosure and configured to project sound in at least two different directions relative to an axis of the enclosure, wherein at least one driver of the plurality of individually addressable drivers is configured to reflect sound off of at least one surface of the listening environment prior to the sound reaching a listener in the listening environment, and wherein the at least one driver is addressed through an input to the speaker system that is configured to receive an audio signal for producing reflected sound, and further wherein the audio content comprises a hybrid object and channel-based audio stream that is converted by a renderer into individual audio streams designated for each of the individually addressable drivers; and
a partial rendering component provided within the enclosure and configured to receive audio streams from a central processor, perform a proportion of a rendering function of the renderer ranging from zero to greater than half of the rendering function, and generate speaker feed signals for transmission to the plurality of individually addressable drivers, and further comprising a storage storing a speaker profile defining certain driver characteristics including the number of drivers in the enclosure, acoustic characteristics of each driver, a spatial position of a center of each driver relative to a front center point of the enclosure, an angle of the at least one driver with respect to a defined plane, and characteristics of the microphone.
2. The speaker system of claim 1 wherein the at least one driver comprises an upward-firing driver having local memory storing a unique address assigned to the at least one driver for addressing of the input, and wherein the unique address is defined during setup of the speaker system.
3. The speaker system of claim 2 wherein the upward-firing driver is oriented so that sound waves are predominately propagated at an angle between 45 to 90 degrees relative to a horizontal axis of the enclosure.
4. The speaker system of claim 3 wherein the enclosure embodies a soundbar, and wherein at least one driver comprises a high-resolution center channel driver.
5. The speaker system of claim 4 wherein each individually addressable driver is uniquely identified within in accordance with a network protocol supported by a bi-directional interconnect coupling the speaker system to a renderer.