Stereo-to-binaural upmixing splits direct and ambience signals for separate spatial processing
Evidence
To convert normal stereo signals into signals suitable for binaural presentation, it is necessary to filter the left and right channels with the HRTFs associated with the positions of left and right speakers, as shown in Figure 7.15. Note that four filters are involved, because one must model not only the transfer function to each ear but also the cross-coupling of the loudspeakers between the two ears. — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 2252 (
#expands, via linked claim)
Categorization
- XREF: connects to: Upmixers extract ambience already in recordings, not synthesized reverb — , Toole, Floyd E - Sound reproduction-…, 1736; Converting stereo to binaural sound requires modeling cross-coupling between speakers — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 2252
Related
- Converting stereo to binaural sound requires modeling cross-coupling between speakers (similarity 0.91)
- Upmixers extract ambience already in recordings, not synthesized reverb (similarity 0.88)
- Binaural recordings must be headphone-based because cross-ear coupling destroys the illusion (similarity 0.88)
- Stereo signals can be processed for headphones to recreate natural binaural sound fields (similarity 0.86)
- Near-field listening exposes all of stereo’s array crosstalk colorations. (similarity 0.84)
- Crosstalk cancellation delivers binaural separation through loudspeakers (similarity 0.84)
- Upmixer quality depends on matching parameters to the specific recording (similarity 0.83)
- Human spatial resolution limits make stereo-to-multichannel upmixing perceptually plausible. (similarity 0.82)
- Matrixed quadraphonic downmixing produced crosstalk that shrank the listening position. (similarity 0.81)
- Binaural headphone tests can replicate real-time loudspeaker listening (similarity 0.80)
- Stereo upmixing quality varies because it depends on the pairing of recording and upmixer. (similarity 0.80)
- Crosstalk cancellation works only within a centimeter-sized listening zone. (similarity 0.80)
- Limited human spatial resolution allows plausible upmix from fewer source channels (similarity 0.79)
- Binaural hearing aid processing preserves spatial cues that monaural processing distorts (similarity 0.79)
- Binaural recordings capture natural direction cues only when ears match the listener (similarity 0.79)
Broader Connections
- Converting stereo to binaural sound requires modeling cross-coupling between speakers
#expands(0.85) — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 2252