发明申请
- 专利标题: Waveform adjusting system for music file
- 专利标题(中): 音乐文件的波形调整系统
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申请号: US10833148申请日: 2004-04-28
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公开(公告)号: US20040211309A1公开(公告)日: 2004-10-28
- 发明人: Yu-Cheng Hsieh
- 申请人: MediaTek Inc.
- 申请人地址: null
- 专利权人: MediaTek Inc.
- 当前专利权人: MediaTek Inc.
- 当前专利权人地址: null
- 优先权: TW092109945 20030428
- 主分类号: G11C005/00
- IPC分类号: G11C005/00 ; G10H007/00
摘要:
A waveform adjusting system for a music file suitable in hand held devices is described. A music file includes a plurality of tones, and the waveform adjusting system includes a maximum magnitude estimating module and an adjusting module. The waveform adjusting system is capable of analyzing the whole music file, superposing the magnitudes of all the tones, and calculating a scale factor according to the maximum superposed magnitude and a predetermined level. The adjusting module multiplies the magnitude of each tone by the scale factor K, thus the volume of the music is kept to a suitable level without suffering from too small volume problem or signal distortion due to too large volume.
公开/授权文献
- US07151215B2 Waveform adjusting system for music file 公开/授权日:2006-12-19