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Audible discontinuities in DFT stereo for bitrates <= 32 bkps

There is some discontinuities on the right channel only. The following figure shows the right channel of the input file, the float synthesis, the fixed point synthesis and the temporal different between float and fixed point.

image

The next figure shows the effect on the signal

image

the bitstream used is attached here

IVAS_dec STEREO 48 tr.bit syn

The decoder runs always in DTF stereo, and the problem is present for bitrates <= 32 kbps

The issue appeared at SHA 0532a64f

Bitstream :

tr.bit

Edited by vaillancour