RU96108834A - METHOD AND DEVICE FOR SELECTING CODING SPEED IN VOCODER WITH VARIABLE SPEED - Google Patents
METHOD AND DEVICE FOR SELECTING CODING SPEED IN VOCODER WITH VARIABLE SPEEDInfo
- Publication number
- RU96108834A RU96108834A RU96108834/09A RU96108834A RU96108834A RU 96108834 A RU96108834 A RU 96108834A RU 96108834/09 A RU96108834/09 A RU 96108834/09A RU 96108834 A RU96108834 A RU 96108834A RU 96108834 A RU96108834 A RU 96108834A
- Authority
- RU
- Russia
- Prior art keywords
- determining
- coding rate
- accordance
- values
- speed
- Prior art date
Links
- 238000005311 autocorrelation function Methods 0.000 claims 6
- 238000004364 calculation method Methods 0.000 claims 5
Claims (30)
где L - число отводов в фильтре hL (n) нижних частот;
RS(i) - автокорреляционная функция входного сигнала S(n);
RhL - автокорреляционная функция полосового фильтра hbp(n).2. The device according to p. 1, characterized in that the means for calculating the energy of the sub-band determines each of the many values of the energy of the sub-band according to the equation
where L is the number of taps in the low-pass filter hL (n);
R S (i) is the autocorrelation function of the input signal S (n);
R hL is the autocorrelation function of the band-pass filter hbp (n).
где L - число отводов фильтра hL (n) нижних частот;
RS(i) - автокорреляционная функция входного сигнала S(n);
RhL - автокорреляционная функция полосового фильтра hbp(n).12. The device according to claim 11, characterized in that the calculated means of the energy of the sub-band determines each of the many values of the energy of the sub-band according to the equation
where L is the number of taps of the low-pass filter hL (n);
R S (i) is the autocorrelation function of the input signal S (n);
R hL is the autocorrelation function of the band-pass filter hbp (n).
где L - число отводов в фильтре hL(n) нижних частот;
RS(i) - автокорреляционная функция входного сигнала S(n);
RhL - автокорреляционная функция полосового фильтра hbp(n).22. The method according to p. 21, characterized in that the step of determining a plurality of sub-band energy values is carried out in accordance with the equation
where L is the number of taps in the low-pass filter hL (n);
R S (i) is the autocorrelation function of the input signal S (n);
R hL is the autocorrelation function of the band-pass filter hbp (n).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US288,413 | 1994-08-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
RU96108834A true RU96108834A (en) | 1998-08-10 |
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