| 摘要 |
<p>Provided are a device and a method for sampling frequency rate conversion (SRC), which is capable of high-speed, high-precision data conversion. When a discrete impulse response function ?(Pr,n) is extracted from an impulse response function ?(t,n), extremely high-speed, high-precision sampling frequency rate conversion is possible by considering the differential interpolation position (Pr) which is the specified parameter corresponding to the difference between the time corresponding to the n0-th value of an original data sequence Y(nT), namely, the discrete point (n0T), and the temporal interpolation position (m0Tb) which is set to correspond to the m0-th value of a new data sequence Y(mTb) which is closest to the discrete point (n0T); and considering the periods (T, Tb), namely, the frequencies (fs, fb); and synthesizing the data using this kind of discrete impulse response function ?(Pr,n).</p> |
