![]() To deal with these factors, developers are turning to digital signal processors (DSPs), because their programmability allows systems to be customized for specific market niches and applications. Consumers have come to expect sophisticated post-processing features, such as spatialization, automatic equalization, and bass management-in both top-of-the-line and mainstream products.Products must interface with digital networks, such as the Media Oriented Systems Transport (MOST ®) bus, requiring network stacks, content encryption and decryption, and sample-rate conversion-all within the audio processor.The number of distinct, and sometimes competing, multi-channel audio formats has been increasing rapidly-to include, among others, Dolby ® Pro Logic ®, Dolby Digital, DTS ® 5.1, Dolby Digital Surround EX™, and DTS-ES ®.The number of discrete audio channels in normal use has grown from 2 to 4 to 5.1-and most recently-to 7.1. ![]() Today, audio system developers are faced with the increasing need to design complex audio systems-especially home audio/video receivers (AVRs) and automotive infotainment systems-both quickly and cost-effectively. This article briefly introduces VisualAudio, and then describes its framework, audio modules, and application to audio product development. ![]() Its real-time-architecture is especially well-suited to the challenges of audio product development. The VisualAudio design and development environment is a new software tool for designing and developing audio systems. Designing Efficient, Real-Time Audio Systems with VisualAudio™
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