Subject: [AUDITORY] [duration & loudness : how to equate (subjectively)] From: Virginie van Wassenhove <virginie.van.wassenhove@xxxxxxxx> Date: Thu, 12 Dec 2024 08:11:50 +0100--0000000000006e385306290d6e80 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Dear colleagues and auditory experts, I am reaching out to the auditory community to evaluate existing methods / experimental tricks to equate the loudness of sounds as a function of their duration. Context: in the timing literature, one wants to ensure that participants use timing and not any other (intensity, loudness, spectral, pitch...) cue to estimate the duration of a stimulus. For this, one conservative approach is to use an "empty interval", namely a gap in noise for very short timing, or two transient sounds delimiting silence (aka a time interval). Alternatively, a "filled duration" (pure tone, noise, etc...) can be used, risking the use of alternative cues. To use a filled duration, one must ensure that the loudness of the sound is equal across durations. My question to you is: What is the best and fastest way (from the viewpoint of experimental implementation) to equalize loudness across auditory stimuli? The range of durations is from 100 ms to 3 s. For other experimental reasons, we'd prefer a pure tone (440 Hz) over noise. I'd welcome your tips, insights or pointers to papers you may have. If anyone has a reprint of this one, that would also be great: Sharon M. Abel; Duration Discrimination of Noise and Tone Bursts. J. Acoust. Soc. Am. 1 April 1972; 51 (4B): 1219=E2=80=931223. https://doi.org/10.1121/1.1912963 <https://doi.org/10.1121/1.1912963> With best wishes, Virginie Dir. Cognition & Brain Dynamics <https://brainthemind.com/> CEA/DRF/Joliot/NeuroSpin | INSERM Cognitive Neuroimaging Unit | Univ. Paris-Saclay Co-Direction DIM C- <https://dim-cbrains.fr/fr/home>BRAINS <https://dim-cbrains.fr/fr/home> | Associate Editor, JoCN <https://direct.mit.edu/jocn> *My working hours may not be the same as yours, please respond on your own time!* --0000000000006e385306290d6e80 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <div dir=3D"ltr"><div>Dear colleagues and auditory experts,=C2=A0</div><div= ><br></div><div>I am reaching out to the auditory community to evaluate exi= sting methods / experimental tricks to equate the loudness of sounds as a f= unction of their duration.</div><div><br></div><div>Context: in the timing = literature, one wants to ensure that participants use timing and not any ot= her (intensity, loudness, spectral, pitch...) cue to estimate the duration = of a stimulus.=C2=A0 For this, one conservative approach is to use an "= ;empty interval", namely a gap in noise for very short timing, or two = transient=C2=A0sounds delimiting silence (aka a time interval). Alternative= ly, a "filled duration" (pure tone, noise, etc...) can be used, r= isking the use of alternative cues. To use a filled duration, one must ensu= re that the loudness of the sound is equal across durations.=C2=A0</div><di= v><br></div><div>My question to you is: <br>What is the best and fastest wa= y (from the viewpoint of experimental implementation) to equalize loudness = across auditory stimuli? The range of durations is from 100 ms to 3 s. For = other experimental reasons, we'd prefer a pure tone (440 Hz) over noise= .</div><div><br></div><div>I'd welcome your tips, insights or pointers = to papers you may have.</div><div><br></div><div>If anyone has a reprint of= this one, that would also be great:=C2=A0</div><div>Sharon M. Abel; Durati= on Discrimination of Noise and Tone Bursts. J. Acoust. Soc. Am. 1 April 197= 2; 51 (4B): 1219=E2=80=931223. <a href=3D"https://doi.org/10.1121/1.1912963= ">https://doi.org/10.1121/1.1912963=C2=A0</a></div><div><br></div><div><spa= n style=3D"color:rgb(0,0,0);font-family:arial,helvetica,sans-serif">With be= st wishes,</span></div><div><span style=3D"color:rgb(0,0,0);font-family:ari= al,helvetica,sans-serif">Virginie</span></div><div><div dir=3D"ltr" class= =3D"gmail_signature" data-smartmail=3D"gmail_signature"><div dir=3D"ltr"><d= iv><div><br></div></div><font size=3D"1"><font face=3D"arial, sans-serif"><= br></font></font><font color=3D"#666666"><font style=3D"font-family:arial,s= ans-serif;font-size:x-small">Dir.=C2=A0</font><a href=3D"https://brainthemi= nd.com/" style=3D"font-family:arial,sans-serif;font-size:x-small" target=3D= "_blank">Cognition & Brain Dynamics</a><font style=3D"font-family:arial= ,sans-serif;font-size:x-small">=C2=A0</font><font size=3D"1"><br></font></f= ont><div><font color=3D"#666666"><font size=3D"1"><span style=3D"font-famil= y:arial,sans-serif">CEA/DRF/Joliot/NeuroSpin |=C2=A0</span></font><span sty= le=3D"font-family:arial,sans-serif;font-size:x-small">INSERM Cognitive Neur= oimaging Unit |=C2=A0</span><span style=3D"font-family:arial,sans-serif;fon= t-size:x-small">Univ. Paris-Saclay</span></font></div><div><div><font color= =3D"#666666"><span style=3D"font-family:arial,sans-serif;font-size:x-small"= >Co-Direction=C2=A0</span><a href=3D"https://dim-cbrains.fr/fr/home" style= =3D"font-family:arial,sans-serif;font-size:x-small" target=3D"_blank">DIM C= -</a><a href=3D"https://dim-cbrains.fr/fr/home" style=3D"font-family:arial,= sans-serif;font-size:x-small" target=3D"_blank">BRAINS</a>=C2=A0</font><spa= n style=3D"color:rgb(102,102,102);font-family:arial,sans-serif;font-size:x-= small">=C2=A0</span><span style=3D"color:rgb(102,102,102);font-family:arial= ,sans-serif;font-size:x-small">|=C2=A0</span><span style=3D"color:rgb(102,1= 02,102);font-family:arial,sans-serif;font-size:x-small">Associate Editor, <= /span><a href=3D"https://direct.mit.edu/jocn" style=3D"font-family:arial,sa= ns-serif;font-size:x-small" target=3D"_blank">JoCN</a></div><div><i><font s= ize=3D"1" color=3D"#666666">My working hours may not be the same as yours, = please respond on your own time!</font></i></div></div></div></div></div></= div> --0000000000006e385306290d6e80--