SimpleFreeFieldSOS

SimpleFreeFieldSOS : Simple Free Field Second Order Sections

Description

This SOFA convention set is similar to SimpleFreeFieldHRIR. The only difference is the DataType, which is SOS, not FIR. SimpleFreeFieldSOS was requested to cover the needs coming from fast HRTF rendering, where an HRTF is represented as a broadband delay and small number of second-order sections (SOSs).

Version 1.0

This version follows the conventions SimpleFreeFieldHRIR (version 1.0) standardized in AES69-2015. Note that SimpleFreeFieldSOS 1.0, in contrast to SimpleFreeFieldHRIR 1.0, has not been included in the standard, thus it is declared as stable.

Note:

• SimpleFreeFieldSOS does not impose any restriction on the filter coefficients contained in Data.SOS. Especially it is the user responsibility to check whether the filters are stable or not.
• We encourage to provide information in 'History' about the creation of SOSs and estimation of delay from the underlying filters.
• We further encourage to use 'Parents' can be used to link the SimpleFreeFieldSOS file with the file containing the original filters.