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摘要
En 中文
Due to the rapid increase in the production of portable digital audio devices and the continuous upgrades to internet access speeds, the market for MQS(Mastering Quality Sound) audio is growing rapidly as the format possesses higher audio quality than MP3. Unlike MP3 or CD formats that result in loss of quality and resolution, MQS represents the original audio recording of the singer in the studio with no loss in audio quality, and utilizes lossless audio codecs for compression to maintain the highest quality. While the most commonly used lossless audio codec is FLAC, the compression rate of this codec is not effective, resulting in large file sizes and overhead when conventional DRM is applied. This paper presents a new DRM model that allows for low-quality previews and minimizes battery drain in smartphones. This model has already been implemented on the Android platform, and usability has been evaluated.
