GeneralFIR-E
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This conventions defines a general convention with FIR-E as DataType (no restrictions but DataType).
GeneralFIR-E is the standardized version of the previously proposed GeneralFIR convention. It extends GeneralFIR by having Emitter as an explicit dimension in the data.
The conventions is defined in AES69-2022 (SOFA 2.1).
| Name | Default | Flags | Dimensions | Type | Comment |
|---|---|---|---|---|---|
| GLOBAL:Conventions | SOFA | rm | attribute | ||
| GLOBAL:Version | 2.1 | rm | attribute | ||
| GLOBAL:SOFAConventions | GeneralFIR-E | rm | attribute | This conventions stores IRs for general purposes, i.e., only the SOFA general metadata are predefined. | |
| GLOBAL:SOFAConventionsVersion | 2.0 | rm | attribute | ||
| GLOBAL:APIName | rm | attribute | |||
| GLOBAL:APIVersion | rm | attribute | |||
| GLOBAL:ApplicationName | attribute | ||||
| GLOBAL:ApplicationVersion | attribute | ||||
| GLOBAL:AuthorContact | m | attribute | |||
| GLOBAL:Comment | attribute | ||||
| GLOBAL:DataType | FIR-E | rm | attribute | We use FIR datatype which in addition depends on Emitters (E). | |
| GLOBAL:History | attribute | ||||
| GLOBAL:License | No license provided, ask the author for permission | m | attribute | ||
| GLOBAL:Organization | m | attribute | |||
| GLOBAL:References | attribute | ||||
| GLOBAL:RoomType | free field | m | attribute | It can be free field, reverberant, shoebox or dae. | |
| GLOBAL:Origin | attribute | ||||
| GLOBAL:DateCreated | m | attribute | |||
| GLOBAL:DateModified | m | attribute | |||
| GLOBAL:Title | m | attribute | |||
| ListenerPosition | [0 0 0] | m | IC, MC | double | |
| ListenerPosition:Type | cartesian | m | attribute | ||
| ListenerPosition:Units | metre | m | attribute | ||
| ReceiverPosition | [0 0 0] | m | ICI, RCI, RCM | double | |
| ReceiverPosition:Type | cartesian | m | attribute | ||
| ReceiverPosition:Units | metre | m | attribute | ||
| SourcePosition | [0 0 0] | m | IC, MC | double | |
| SourcePosition:Type | cartesian | m | attribute | ||
| SourcePosition:Units | metre | m | attribute | ||
| EmitterPosition | [0 0 0] | m | ICI, ECI, ECM | double | Each speaker is represented as an Emitter. |
| EmitterPosition:Type | cartesian | m | attribute | ||
| EmitterPosition:Units | metre | m | attribute | ||
| Data.IR | 0 | m | mrne | double | Impulse responses. |
| Data.SamplingRate | 48000 | m | I, M | double | Sampling rate of the samples in Data.IR and Data.Delay. |
| Data.SamplingRate:Units | hertz | m | attribute | Unit of the sampling rate. | |
| Data.Delay | 0 | m | IRI, MRI, MRE | double | Additional delay of each IR (in samples, with the time interval as described by SamplingRate). |