摘要
设计并实现了一款基于ARM和DSP的数字搓盘机。该数字搓盘机不但实现了传统模拟搓盘机的各项功能,而且增加模拟搓盘机无法实现的变速不变调等功能。该数字搓盘机支持CD/CD-R/CD-RW光盘、USB闪存盘等存储设备,支持CD-DA,MP3,AAC,WMA,WAV等多种音乐格式.完全满足了DJ(Discjockey,可理解为搓动唱片的音乐人)的操作需要。
A kind of digital turntable based on the DSP and ARM, where the ARM is used to control the servo processing, jog dial, tempo control slider, LCD, Key-press and other memories, is designed and realized. DSP is mainly used to realize the audio signal processing algorithms, including the time stretch （changing tempo but preserving pitch） and resample （preserving neither pitch nor tempo）, etc. This digital turntable supports the CD/ CD-R/CD-RW, the flash, and other memory devices, and supports many music formats, such as CD-DA, MP3, AAC, WMA, WAV.
出处
《电声技术》
2010年第1期40-44,共5页
Audio Engineering
