Waveform adjusting system for music file

Details Waveform adjusting system for music file Waveform adjusting system for music file

2006-12-19

2006-12-19

Donovan, Lincoln (Department: 2837)

Music

Instruments

Electrical musical tone generation

C084S604000, C084S605000

Reexamination Certificate

active

07151215

ABSTRACT:
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.

REFERENCES:
patent: 4214503 (1980-07-01), Deutsch
patent: 5789690 (1998-08-01), Furuhashi
patent: 5880387 (1999-03-01), Kim
patent: 6201175 (2001-03-01), Kikumoto et al.
patent: 6365817 (2002-04-01), Suzuki et al.
patent: 6534700 (2003-03-01), Cliff
patent: 6759585 (2004-07-01), Hatanaka
patent: 2003/0150319 (2003-08-01), Nishimoto
Google Search: “define: amplitude”, ©2005 Google, http://www.google.com/search?hl=en&lr=&rls=GGLD%2CGGLD%3A2004-30%2CGGLD%3Aen&q=define%3A+amplitude.
Google Search: “define: scale factor”, ©2005 Google, http://www.google.com/search?hl=en&lr=GGLD%2CGGLD%3A2004-30%2CGGLD%3Aen&q=define%3A+scale+factor.

Affiliated with

Also associated with

Rating

Waveform adjusting system for music file does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Waveform adjusting system for music file, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Waveform adjusting system for music file will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3665747