Digital signal processing for speech and audio

语音和音频的数字信号处理

• 批准号: 4428-2009
• 负责人: Kabal, Peter
• 金额: $ 2.62万
• 依托单位: McGill University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2009
• 资助国家: 加拿大
• 起止时间: 2009-01-01 至 2010-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=419896
• 关键词: Digital; signal; processing; speech; audio

This project investigates digital processing techniques as applied to the processing of speech and audio signals. We will investigate new approaches to faithfully coding audio signals at rates below those now achievable with current technology. The approach is to allocate scarce bit resources to the time-frequency regions of the audio signal in which they are most needed. The criterion will be based on the psychoacousic properties of human hearing. Coding at lower rates translates to reductions in storage space, but probably more importantly, allows for less demand on the network for streaming audio.

本项目研究应用于语音和音频信号处理的数字处理技术。我们将研究新的方法，忠实地编码音频信号的速率低于目前的技术。该方法是将稀缺的比特资源分配给最需要它们的音频信号的时频区域。该标准将基于人类听觉的心理声学特性。以较低的速率编码意味着存储空间的减少，但可能更重要的是，允许对网络流媒体音频的需求减少。