Subject: [AUDITORY] On 3D audio rendering for signals with the low sampling frequency From: Junfeng Li <junfeng.li.1979@xxxxxxxx> Date: Thu, 11 Aug 2022 09:10:24 +0800--00000000000042e6fe05e5ecd59d Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Dear all, We are working on 3D audio rendering for signals with low sampling frequency. As you may know, the HRTFs are normally measured at the high sampling frequency, e.g., 48kHz or 44.1kHz. However, the sampling frequency of sound signals in our application is restricted to 16 kHz. Therefore, to render this low-frequency (=E2=89=A48kHz) signal, one straight way is to first dow= nsample the HRTFs from 48kHz/44.1kHz to 16kHz and then convolve with sound signals. However, the sound localization performance of the signal rendered with this approach is greatly decreased, especially elevation perception. To improve the sound localization performance, I am now wondering whether there is a certain good method to solve or mitigate this problem in this scenario. Any discussion is welcome. Thanks a lot again. Best regards, Junfeng --00000000000042e6fe05e5ecd59d Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <div dir=3D"ltr">Dear all,=C2=A0<div><br></div><div>We are working on 3D au= dio rendering for signals with low sampling frequency.=C2=A0</div><div>As y= ou may know, the HRTFs=C2=A0 are normally measured at the high sampling fre= quency, e.g., 48kHz or 44.1kHz. However, the sampling frequency of sound si= gnals in our application=C2=A0is restricted to 16 kHz. Therefore, to render= this low-frequency (=E2=89=A48kHz) signal, one straight way is to first=C2= =A0downsample the HRTFs from 48kHz/44.1kHz to 16kHz and then=C2=A0convolve = with sound signals. However, the sound localization performance of the sign= al rendered=C2=A0with this approach is greatly decreased, especially elevat= ion perception. To improve the=C2=A0sound localization performance, I am no= w wondering whether there is a certain good method to solve or mitigate thi= s problem in this scenario.=C2=A0</div><div><br></div><div>Any discussion i= s welcome.</div><div><br></div><div>Thanks a lot again.</div><div><br></div= ><div>Best regards,</div><div>Junfeng=C2=A0</div></div> --00000000000042e6fe05e5ecd59d--