Hi,
I am using AAC audio codec for my application, when i apply filter for the application the voice was getting disorted and not clear, when we used the Noise Reduction filter for G729, it is good, but when i use Noise Reduction filter for AAC it is getting disorted
For G729 sampling frequancy is 8000
For AAC sampling frequancy is 16000
Will Noise Reduction Filter support 16Khz sampling frequancy or not? if so , what are the changes need to be done from AAC.
Hi,
Which functions do you use for NR ?
Regards,
Sergey
ippsConvert_16s32f_Sfs(&pShort[i], wBuf, 16, 0);
ippsFilterNoiseDetect_EC_32f64f(wBuf,&pwr,&foo,&flag,pNRState);
nmode = flag?ippsNrUpdateAll:ippsNrUpdate;
ippsFilterNoise_EC_32f_I(wBuf,nmode,pNRState);
ippsConvert_32f16s_Sfs(wBuf, &pShort[i],16,ippRndZero, 0);
As G729I supports 8Khz sampling frequancy max, we are initializing it with 8000
ippsFilterNoiseInit_EC_32f(IPP_PCM_FREQ_8000, pNRState);