Subject: Re: The height of the dummy head for MIT HRTF database From: "Jelfs, Sam" <sam.jelfs@xxxxxxxx> Date: Tue, 15 Nov 2011 08:25:09 +0000 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>Junfeng, The measurements were made in an Anechoic chamber, and as such the height from floor-to-ear should be insignificant as there should be very little in the way of floor reflection. The authors do note that reflections from apparatus exist, but not explicitly whether they are present in the 512-point HRIR. >From 'hrtfdoc.txt' as supplied with the database: "The head response persists for several hundred samples (subject to interpretation) and is followed by various reflections off objects in the anechoic chamber (such as the KEMAR turntable). In order to reduce the size of the data set without eliminating anything of potential interest, we decided to discard the first 200 samples of each impulse response and save the next 512 samples. Each HRTF response is thus 512 samples long. Most researchers will no doubt truncate this data further." Kind Regards Sam Jelfs -----Original Message----- From: AUDITORY - Research in Auditory Perception [mailto:AUDITORY@xxxxxxxx On Behalf Of Junfeng Li Sent: Monday 14 November 2011 16:25 To: AUDITORY@xxxxxxxx Subject: [AUDITORY] The height of the dummy head for MIT HRTF database Dear all, Could anyone know the height (i.e., the distance between the entrance of ear of dummy head and the floor of the measurement room) of the dummy head during measuring MIT HRTF database? Since in the spcification of the database, only the distance (1.4m) between the loudspeaker and the center of dummy head is provided. Thanks a lot in advance! Best Regards, Junfeng Li ________________________________ The information contained in this message may be confidential and legally protected under applicable law. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, forwarding, dissemination, or reproduction of this message is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message.