Binaural recording validity enabled isolating the room-familiarity variable
Evidence
It is important that the binaural version of the live test yielded essentially the same loudspeaker preferences because this enabled the very revealing test that followed. … Using the same binaural recordings that closely replicated the results of the live listening tests, another experiment was conducted. In this, the loudspeakers were compared with themselves and each other when located in each of the loudspeaker positions in each of the four rooms. Thus, in this experiment, the sound of the room was combined with the sound of the loudspeaker in randomized presentations that did not permit listeners to become familiar with the listening space. The result was that: — Toole, Floyd E, Sound reproduction- the acoustics and…, 529
Categorization
Category: Craft and Method
- XREF: Methodological design that isolates familiarity/adaptation; relevant to the reader’s interest in how psychoacoustic models are built.
- SEED: A good experimental-design lesson: randomized presentation that prevents familiarity can reveal a hidden dominating variable (here, the room).
Related
- Room differences dominate loudspeaker differences when listeners cannot adapt (similarity 0.84)
- Rooms shift absolute ratings but not loudspeaker rankings in multiple-loudspeaker comparisons (similarity 0.83)
- Room acoustics contaminate loudspeaker listening tests needing controlled environments (similarity 0.82)
- Random loudspeaker repositioning across listening seats eliminates room-position bias (similarity 0.82)
- Binaural hearing separates direct and reflected sound while monaural microphones cannot (similarity 0.82)
- Seeing a known loudspeaker erases sensitivity to room-position changes (similarity 0.82)
- Presentation method, room acoustics, and listener state are independent variables in listening experiments (similarity 0.82)
- Listeners need some room sound but its required amount is unknown (similarity 0.81)
- Randomizing speaker locations is needed to average out room effects. (similarity 0.81)
- Room acoustics and presentation method alter how listeners perceive sounds (similarity 0.81)
- Early binaural headphone studies localized sounds inside the head rather than externally. (similarity 0.81)
- Listeners perceptually normalize familiar rooms to judge loudspeakers clearly (similarity 0.81)
- Randomizing lateral speaker positions averages out width-mode influences in tests (similarity 0.80)
- Multichannel spatial information masks loudspeaker coloration in playback (similarity 0.80)
- Room size and shape do not change multiple-loudspeaker sound quality ratings (similarity 0.80)