Hi, i would like to know which is the best method for implementing a integer sample rate converter (decimation /interpolation) in terms of quality. the conversion rates required are (2,4,8,16) both decimation and interpolation.i had tried with polyphase implementation and lagrange interpolation.lagrange interpolation is too spiky and polyphase resulted in flat signal without images. But i would like to know what is the method that is generally followed in implementing an SRC and the advantages/disadvantages of different methods if you guys have some idea.. thanx in advance... regards, srikanth konejti
best method for implementing an SRC
Started by ●February 1, 2007
Reply by ●February 1, 20072007-02-01
On Feb 1, 8:00 am, "srikk" <srikanth_...@rediffmail.com> wrote:> Hi, > > i would like to know which is the best method for implementing a integer > sample rate converter (decimation /interpolation) in terms of quality. > the conversion rates required are (2,4,8,16) both decimation and > interpolation.i had tried with polyphase implementation and lagrange > interpolation.lagrange interpolation is too spiky and polyphase resulted > in flat signal without images. But i would like to know what is the method > that is generally followed in implementing an SRC and the > advantages/disadvantages of different methods if you guys have some > idea.. > thanx in advance... > > regards, > srikanth konejtiI think this is commonly done with FIR filters in the time domain. It can also be done in the frequency domain with an OLA or OLS structure. John