Why do dts happen

Overview

DTS (Digital Theater Systems) emerged in the early 1990s as a competitor to Dolby Digital in the digital surround sound market. Founded in 1993 by Terry Beard, along with other audio engineers and entrepreneurs, DTS was created to address the limitations of analog sound systems in theaters. The company's breakthrough came with the release of Jurassic Park in 1993, which became the first film to feature DTS sound. This marked a significant shift in cinema audio technology, as DTS offered superior sound quality compared to existing systems. Throughout the 1990s, DTS expanded beyond theaters into home entertainment, becoming a standard feature on DVDs starting in 1997. The technology continued to evolve with formats like DTS-ES (1999) for 6.1-channel sound and DTS-HD (2004) for high-definition audio, establishing DTS as a major player in both professional and consumer audio markets.

How It Works

DTS operates using perceptual audio coding, a compression technique that reduces file sizes while maintaining audio quality by eliminating sounds that are less perceptible to human hearing. The original DTS format (now called DTS Digital Surround) typically uses bitrates between 768 kbps and 1.5 Mbps, higher than competing formats like Dolby Digital's 448 kbps. In theatrical applications, DTS stores audio data on separate CD-ROMs synchronized with the film via timecode, while home versions embed the audio in media like DVDs or Blu-rays. The encoding process analyzes audio signals using psychoacoustic models to determine which sounds can be compressed or removed without noticeable quality loss. DTS supports various channel configurations, from basic stereo to 7.1-channel surround sound in advanced formats. The system also includes features like dynamic range control and dialogue normalization to optimize playback across different environments.

Why It Matters

DTS matters because it revolutionized audio quality in both cinemas and home entertainment systems, providing audiences with immersive surround sound experiences. In theaters, DTS helped create more engaging films through superior audio fidelity, enhancing everything from subtle environmental sounds to dramatic action sequences. For consumers, DTS became a key selling point for home theater systems, with DTS-encoded DVDs and Blu-rays offering cinema-quality sound at home. The technology's higher bitrates compared to competitors generally result in better audio quality, particularly noticeable in complex soundscapes. DTS also drove innovation in the audio industry, pushing competitors to improve their own technologies and leading to formats like DTS:X for object-based audio. Today, DTS remains relevant through continued development of formats like DTS-HD Master Audio and DTS:X, ensuring compatibility with modern streaming services and audio equipment.