Audio apparatus for processing voice and audio signals

An audio apparatus for performing a predetermined signal processing on voice and audio signals, comprising:

• first converting means for converting digital voice signals into first converted signals sampling processed at a frequency, n×fs, as a multiple of a first predetermined sampling frequency fs with n being a first integral number larger than unity and, for outputting first resultant signals, said digital voice signals previously being sampling processed at the first predetermined sampling frequency fs;
• second converting means for converting digital audio signals into second converted signals sampling processed at a frequency, N×Fs, as a multiple of a second predetermined sampling frequency Fs with N being a second integral number larger than unity, and for outputting second resultant signals, said digital audio signals previously being sampling processed at the second predetermined sampling frequency Fs;
• third converting means for converting said first resultant signals output from said first converting means into third converted signals sampling processed at the frequency, N×Fs, and converting said second resultant signals output from said second converting means for into fourth converted signals sampling processed at the frequency, n×fs, and for outputting third resultant signals;
• first digital processing means for performing a predetermined digital processing operation on said digital voice signals converted into said first converted signals sampling processed at the frequency, n×fs, by said first converting means and on said digital audio signals converted into said fourth converted signals sampling processed at the frequency, n×fs, by said third converting means;
• and
• second digital processing means for performing another predetermined digital processing operation on said digital audio signals converted into said second converted signals sampling processed at the frequency, N×Fs, by said second converting means for converting and on said digital voice signals converted into said third converted signals sampling processed at the frequency, N×Fs, by said third converting means.

An audio apparatus for performing signal processing on voice and audio signals, said audio apparatus comprising:

• a sampling frequency conversion circuit configured to (a) convert digital voice signals previously sampling processed at a first predetermined sampling frequency fs into first converted signals sampling processed at a frequency, n×fs, as a multiple of the first predetermined sampling frequency fs with n being a first integral number larger than unity, (b) convert digital audio signals previously sampling processed at a second predetermined sampling frequency Fs into second converted signals sampling processed at a frequency, N×Fs, as a multiple of the second predetermined sampling frequency Fs with N being a second integral number larger than unity, (c) convert the first converted signals into third converted signals sampling processed at the frequency, N×Fs, and (d) convert the second converted signals into signals sampling processed at the frequency, n×fs;
• and
• a digital processing circuit configured to (i) perform a first predetermined digital processing operation on the digital voice signals converted into the first converted signals sampling processed at the frequency, n×fs, and on the digital audio signals converted into the fourth converted signals sampling processed at the frequency, n×fs, and (ii) perform a second predetermined digital processing operation on the digital audio signals converted into the second converted signals sampling processed at the frequency, N×Fs, and on the digital voice signals converted into the third converted signals sampling processed at the frequency, N×Fs.

A method for performing signal processing on voice and audio signals, said method comprising:

• converting digital voice signals previously sampling processed at a first predetermined sampling frequency fs into first converted signals sampling processed at a frequency, n×fs, as a multiple of the first predetermined sampling frequency fs with n being a first integral number larger than unity;
• converting digital audio signals previously sampling processed at a second predetermined sampling frequency Fs into second converted signals sampling processed at a frequency, N×Fs, as a multiple of the second predetermined sampling frequency Fs with N being a second integral number larger than unity;
• converting the first converted signals into third converted signals sampling processed at the frequency, N×Fs;
• converting the second converted signals into signals sampling processed at the frequency, n×fs;
• performing a first predetermined digital processing operation on the digital voice signals converted into the first converted signals sampling processed at the frequency, n×fs, and on the digital audio signals converted into the fourth converted signals sampling processed at the frequency, n×fs;
• and
• performing a second predetermined digital processing operation on the digital audio signals converted into the second converted signals sampling processed at the frequency, N×Fs, and on the digital voice signals converted into the third converted signals sampling processed at the frequency, N×Fs.