Subject: objective measures of spatial impression of music recordings From: Frederico Pereira <pereira.frederico@xxxxxxxx> Date: Thu, 29 Jan 2026 21:55:51 +0000--0000000000002b375206498decd5 Content-Type: text/plain; charset="UTF-8" Dear list, Hoping this message finds you all well. I have two audio signals of music pieces. One is mixed for standard stereo presentation, while the other is a spatial audio mix for binaural presentation. I am looking to find objective measures that could indicate differences in spatial impression, like perceived "spaciousness" / "immersion" / "envelopment". I think a consensual metric would be the Left / Right channels IACC (1/3 oct bands). Besides IACC, I am thinking of using the InterAural Difference (IAD), as suggested by Griesinger ("Griesinger, D. (1999, April). Objective measures of spaciousness and envelopment. In *Proceedings of the AES 16th International Conference, Rovaniemi, Finland*.). I am here seeking advice on any other suggestions you might have that could be used on the signal analysis of a continuous 2 channel audio signal. Also, are you aware of any available software toolbox that would have any kind of this "spatial impression" analysis conveniently implemented? Thank you for your help, Kind regards, - Frederico -- Frederico Pereira Mobile:+351 937356301 *Audio and Acoustics, Perception Interaction and Usability* Email:pereira.frederico@xxxxxxxx --0000000000002b375206498decd5 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <div dir=3D"ltr"><div><div>Dear list,</div><div>Hoping this message finds y= ou all well.</div></div><div><br></div><div>I have two audio signals=C2=A0 = of music pieces. One is mixed for standard stereo presentation, while the o= ther is a spatial audio mix for binaural presentation.</div><div>I am looki= ng to find objective measures that could indicate differences in spatial im= pression, like perceived "spaciousness" / "immersion" /= "envelopment".</div><div><br></div><div>I think a consensual met= ric would be the Left / Right channels IACC (1/3 oct bands).=C2=A0</div><di= v>Besides IACC, I am thinking of using the InterAural Difference=C2=A0(IAD)= , as suggested by=C2=A0<span style=3D"font-family:Arial,sans-serif;font-siz= e:13px">Griesinger=C2=A0</span>("<span style=3D"font-size:13px;font-fa= mily:Arial,sans-serif">Griesinger, D. (1999, April). Objective measures of = spaciousness and envelopment. In<span class=3D"gmail-Apple-converted-space"= >=C2=A0</span></span><i style=3D"font-size:13px;font-family:Arial,sans-seri= f">Proceedings of the AES 16th International Conference, Rovaniemi, Finland= </i><span style=3D"font-size:13px;font-family:Arial,sans-serif">.).</span><= /div><div><span style=3D"font-size:13px;font-family:Arial,sans-serif"><br><= /span></div><div><font face=3D"Arial, sans-serif">I am here seeking advice = on any other suggestions you might have that could be used on the signal an= alysis of a continuous 2 channel audio signal.</font></div><div><font face= =3D"Arial, sans-serif">Also, are you aware of any available software toolbo= x that would have any kind of this "spatial impression"=C2=A0anal= ysis conveniently implemented?</font></div><div><font face=3D"Arial, sans-s= erif"><br></font></div><div><div>Thank you for your help,</div><div>Kind re= gards,</div></div><div><br></div><div>=C2=A0- Frederico</div><span class=3D= "gmail_signature_prefix">-- </span><br><div dir=3D"ltr" class=3D"gmail_sign= ature" data-smartmail=3D"gmail_signature"><div dir=3D"ltr">Frederico Pereir= a<br>Mobile:+351 937356301<div><i>Audio and Acoustics, Perception Interacti= on and Usability</i><br><div><div><a href=3D"mailto:Email%3Apereira.frederi= co@xxxxxxxx" target=3D"_blank">Email:pereira.frederico@xxxxxxxx</a></div>= </div></div></div></div></div> --0000000000002b375206498decd5--