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Discussion Groups | Audio Signal Processing | a MPEG2 question

Technical discussions related to Audio Signal Processing (digital effects, acoustics, noise reduction, musical signal processing, etc).

  

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a MPEG2 question - ZiP HE - Nov 28 2:45:00 2000



Dear all,
I am a newcomer in DSP, and now working on MPEG-2 Audio Encoder. In ISO11172-3 encoding
algorithms(Layer II and Layer III), before FFT transfer, there are 1152 samples collected, but
only 1024 points FFT are employed, what shall we do with the remaining 128 samples, just
ingnored or shall overlapped by Module Reduction N?
Before FFT an Hanning window is firstly applied.

Best Regards!

ZiP
28/11/00


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