Stereo Decoder: High-Band Artfacts for 48 kHz Output

Basic info

• Float reference:
  • Encoder (float): 867217ee32c8e8cd2cf5aae69e60c58e00160b49
  • Decoder (float): 867217ee32c8e8cd2cf5aae69e60c58e00160b49
• Fixed point:
  • Encoder (fixed): n/a
  • Decoder (fixed): d3508f9d

Bug description

When decoding the attached bitstream (16 kHz input) at 48 kHz, there are clear high-band artifacts (> 8 kHz) visible for the fixed-point decoder output, which aren't there for the floating-point decoder output.

FX Decoder:

FL Decoder:

Ways to reproduce

Bitstream:

stvST16c_16k4bps.192

IVAS_dec stereo 48 stvST16c_16k4bps.192 out.wav