badgeratu
New Head-Fier
Yes, I've done this myself. It's not as effective as capturing a true array, but still waaaaaay better than most virtualised (generic HRTF) solutions. From the A8 manual:Can the single speaker measurement method be used to create a virtual 7.1 with the A8?
In this method, a single real speaker is used to generate eight virtual speakers at regular spacings. The procedure begins with the listener looking directly at the speaker (0° or 12 o’clock) for the first sweep, then rotating clockwise to +30° (1 o’clock) for the next sweep, and so on through twelve measurements, one for each 30° increment or one for each hour on the clock. One might use a low-back rotating office chair to facilitate moving among the positions. The resulting virtual speakers will be the following, at the positions given:
Left -30°
Centre 0°
Right +30°
Left surround -90°
Right surround +90°
Left back -150°
Right back +150°
“Subwoofer” 180°
Note that this method does not replicate the room acoustic exactly, because the room walls effectively rotate with the speaker as the listener turns in his chair. This may or may not be advantageous, depending on the room.
To capture the room acoustic as it is, the listener would place the speaker in the front centre of the room, initiate the first sweep, and then move the speaker counterclockwise to -30° or 11 o’clock, do the second sweep, then move the speaker to -60° or 10 o’clock, and so on. For the entire procedure the listener would face forward in a stationary chair.
In a well-behaved room, moving the speaker may give the most realistic result. In a room where some speaker positions are acoustically favorable and some are not, the user might create a better result than the real room by placing the single speaker in the best position and replicating the sound of that speaker in that position to all positions by rotating in the chair.
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