TW200518479A - A method of safety-encoding a music file - Google Patents

A method of safety-encoding a music file

Info

Publication number
TW200518479A
TW200518479A TW092133583A TW92133583A TW200518479A TW 200518479 A TW200518479 A TW 200518479A TW 092133583 A TW092133583 A TW 092133583A TW 92133583 A TW92133583 A TW 92133583A TW 200518479 A TW200518479 A TW 200518479A
Authority
TW
Taiwan
Prior art keywords
encoding
file
safety
music file
music
Prior art date
Application number
TW092133583A
Other languages
Chinese (zh)
Other versions
TWI244828B (en
Inventor
Bing-Fei Wu
Chih-Hsu Yen
Hung-Yu Wei
Original Assignee
Bing-Fei Wu
Chih-Hsu Yen
Hung-Yu Wei
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bing-Fei Wu, Chih-Hsu Yen, Hung-Yu Wei filed Critical Bing-Fei Wu
Priority to TW92133583A priority Critical patent/TWI244828B/en
Publication of TW200518479A publication Critical patent/TW200518479A/en
Application granted granted Critical
Publication of TWI244828B publication Critical patent/TWI244828B/en

Links

Landscapes

  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

A method of safety-encoding a music file, for encoding the original music data safely, includes dividing several equal frequency band, Modified DCT, re-encoding positive and negative signs, quantization and bit allocation, Huffman coding, and compiling MP3 file. By safety-encoding the music file during the process of compressing it, the file can be prevented from read out correctly without being authorized. Besides, the time for encoding the whole file can be reduced.
TW92133583A 2003-11-28 2003-11-28 A method of safety-encoding a music file TWI244828B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW92133583A TWI244828B (en) 2003-11-28 2003-11-28 A method of safety-encoding a music file

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW92133583A TWI244828B (en) 2003-11-28 2003-11-28 A method of safety-encoding a music file

Publications (2)

Publication Number Publication Date
TW200518479A true TW200518479A (en) 2005-06-01
TWI244828B TWI244828B (en) 2005-12-01

Family

ID=37154909

Family Applications (1)

Application Number Title Priority Date Filing Date
TW92133583A TWI244828B (en) 2003-11-28 2003-11-28 A method of safety-encoding a music file

Country Status (1)

Country Link
TW (1) TWI244828B (en)

Also Published As

Publication number Publication date
TWI244828B (en) 2005-12-01

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