SingleRoomMIMOSRIR
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This conventions defines SRIRs measured with a compact listener containing an arbitrary number of receivers (R>1, such as a compact microphone array) and a compact source containing an arbitrary number of emitters (E>1, such as a multi-emitter loudspeaker) for multiple positions and/or orientations of the listener and/or source, in a single room.
Version 1.1
SingleRoomMIMOSRIR version 1.1 will represent the standardized convention set from AES69-2025.
| Name | Default | Flags | Dimensions | Type | Comment |
|---|---|---|---|---|---|
| GLOBAL:Conventions | SOFA | rm | attribute | ||
| GLOBAL:Version | 2.1 | rm | attribute | ||
| GLOBAL:SOFAConventions | SingleRoomMIMOSRIR | rm | attribute | Single-room multiple-input multiple-output spatial room impulse responses, depending on Emitters. | |
| GLOBAL:SOFAConventionsVersion | 1.1 | rm | attribute | ||
| GLOBAL:DataType | FIR-E | rm | attribute | Shall be FIR-E. | |
| GLOBAL:RoomType | shoebox | m | attribute | Shall be either shoebox or dae. | |
| GLOBAL:Title | m | attribute | |||
| GLOBAL:DateCreated | m | attribute | |||
| GLOBAL:DateModified | m | attribute | |||
| GLOBAL:APIName | rm | attribute | |||
| GLOBAL:APIVersion | rm | attribute | |||
| GLOBAL:AuthorContact | m | attribute | |||
| GLOBAL:Organization | m | attribute | |||
| GLOBAL:License | No license provided, ask the author for permission | m | attribute | ||
| GLOBAL:ApplicationName | attribute | ||||
| GLOBAL:ApplicationVersion | attribute | ||||
| GLOBAL:Comment | attribute | ||||
| GLOBAL:History | attribute | ||||
| GLOBAL:References | attribute | ||||
| GLOBAL:Origin | attribute | ||||
| GLOBAL:DatabaseName | m | attribute | Unique name of the database. Used for classification of the data. | ||
| GLOBAL:RoomShortName | attribute | Short name of the Room. | |||
| GLOBAL:RoomDescription | attribute | Informal narrative description of the room. | |||
| GLOBAL:RoomLocation | attribute | Location of the room. | |||
| GLOBAL:RoomGeometry | attribute | URI to a file describing the room geometry. | |||
| RoomTemperature | 0 | I, M | double | Temperature during measurements. | |
| RoomTemperature:Units | kelvin | attribute | Units of the room temperature. | ||
| RoomVolume | 0 | II, MI | double | Volume of the room. | |
| RoomVolume:Units | cubic metre | attribute | Units of the room volume. | ||
| RoomCornerA | [0 0 0] | IC, MC | double | ||
| RoomCornerB | [1 2 3] | IC, MC | double | ||
| RoomCorners | 0 | II | double | This variable is used to provide attributes RoomCorners:Type and RoomCorners:Units. Its value can be ignored. | |
| RoomCorners:Type | cartesian | attribute | |||
| RoomCorners:Units | metre | attribute | |||
| GLOBAL:ListenerShortName | attribute | ||||
| GLOBAL:ListenerDescription | attribute | ||||
| ListenerPosition | [0 0 0] | m | MC | double | |
| ListenerPosition:Type | cartesian | m | attribute | ||
| ListenerPosition:Units | metre | m | attribute | ||
| ListenerView | [1 0 0] | m | IC, MC | double | |
| ListenerUp | [0 0 1] | m | IC, MC | double | |
| ListenerView:Type | cartesian | m | attribute | ||
| ListenerView:Units | metre | m | attribute | ||
| GLOBAL:ReceiverShortName | attribute | ||||
| GLOBAL:ReceiverDescription | attribute | ||||
| ReceiverDescriptions | {''} | MSI, RSI, MRS | string | M- and/or R-dependent versions of ReceiverDescription with specific descriptions of the receivers. | |
| ReceiverPosition | [0 0 0] | m | ICI, RCI, RCM | double | |
| ReceiverPosition:Type | spherical | m | attribute | Can be ‘cartesian’, ‘spherical’, or ‘spherical harmonics’. | |
| ReceiverPosition:Units | degree, degree, metre | m | attribute | ||
| ReceiverView | [1 0 0] | RCI, RCM | double | ||
| ReceiverUp | [0 0 1] | RCI, RCM | double | ||
| ReceiverView:Type | cartesian | attribute | |||
| ReceiverView:Units | metre | attribute | |||
| GLOBAL:SourceShortName | attribute | ||||
| GLOBAL:SourceDescription | attribute | ||||
| SourcePosition | [0 0 1] | m | MC | double | |
| SourcePosition:Type | cartesian | m | attribute | ||
| SourcePosition:Units | metre | m | attribute | ||
| SourceView | [1 0 0] | m | IC, MC | double | |
| SourceUp | [0 0 1] | m | IC, MC | double | |
| SourceView:Type | cartesian | m | attribute | ||
| SourceView:Units | metre | m | attribute | ||
| GLOBAL:EmitterShortName | attribute | ||||
| GLOBAL:EmitterDescription | attribute | ||||
| EmitterDescriptions | {''} | MSI, ESI, MES | string | M- and/or E-dependent version of EmitterDescription with specific descriptions of the emitters. | |
| EmitterPosition | [0 0 0] | m | ICI, ECI, ECM | double | |
| EmitterPosition:Type | spherical | m | attribute | Can be ‘cartesian’, ‘spherical’, or ‘spherical harmonics’. | |
| EmitterPosition:Units | degree, degree, metre | m | attribute | ||
| EmitterView | [1 0 0] | ECI, ECM | double | ||
| EmitterUp | [0 0 1] | ECI, ECM | double | ||
| EmitterView:Type | cartesian | attribute | |||
| EmitterView:Units | metre | 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). |
| MeasurementDate | 0 | M | double | Optional M-dependent date and time of the measurement. |
Version 1.0
SingleRoomMIMOSRIR version 1.0 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 | SingleRoomMIMOSRIR | rm | attribute | Single-room multiple-input multiple-output spatial room impulse responses, depending on Emitters | |
| GLOBAL:SOFAConventionsVersion | 1.0 | rm | attribute | ||
| GLOBAL:DataType | FIR-E | rm | attribute | Shall be FIR-E | |
| GLOBAL:RoomType | shoebox | m | attribute | Shall be 'shoebox' or 'dae' | |
| GLOBAL:Title | m | attribute | |||
| GLOBAL:DateCreated | m | attribute | |||
| GLOBAL:DateModified | m | attribute | |||
| GLOBAL:APIName | rm | attribute | |||
| GLOBAL:APIVersion | rm | attribute | |||
| GLOBAL:AuthorContact | m | attribute | |||
| GLOBAL:Organization | m | attribute | |||
| GLOBAL:License | No license provided, ask the author for permission | m | attribute | ||
| GLOBAL:ApplicationName | attribute | ||||
| GLOBAL:ApplicationVersion | attribute | ||||
| GLOBAL:Comment | attribute | ||||
| GLOBAL:History | attribute | ||||
| GLOBAL:References | attribute | ||||
| GLOBAL:Origin | attribute | ||||
| GLOBAL:DatabaseName | m | attribute | Name of the database. Used for classification of the data. | ||
| GLOBAL:RoomShortName | attribute | Short name of the Room | |||
| GLOBAL:RoomDescription | attribute | Informal verbal description of the room | |||
| GLOBAL:RoomLocation | attribute | Location of the room | |||
| GLOBAL:RoomGeometry | attribute | URI to a file describing the room geometry. | |||
| RoomTemperature | 0 | I, M | double | Temperature during measurements, given in Kelvin. | |
| RoomTemperature:Units | kelvin | attribute | Units of the room temperature | ||
| RoomVolume | 0 | I, MI | double | Volume of the room | |
| RoomVolume:Units | cubic metre | attribute | Units of the room volume | ||
| RoomCornerA | [0 0 0] | IC, MC | double | ||
| RoomCornerB | [1 2 3] | IC, MC | double | ||
| RoomCorners | 0 | II | double | The value of this attribute is to be ignored. It only exist to for RoomCorners:Type and RoomCorners:Units | |
| RoomCorners:Type | cartesian | attribute | |||
| RoomCorners:Units | metre | attribute | |||
| GLOBAL:ListenerShortName | attribute | ||||
| GLOBAL:ListenerDescription | attribute | ||||
| ListenerPosition | [0 0 0] | m | MC | double | |
| ListenerPosition:Type | cartesian | m | attribute | ||
| ListenerPosition:Units | metre | m | attribute | ||
| ListenerView | [1 0 0] | m | IC, MC | double | |
| ListenerUp | [0 0 1] | m | IC, MC | double | |
| ListenerView:Type | cartesian | m | attribute | ||
| ListenerView:Units | metre | m | attribute | ||
| GLOBAL:ReceiverShortName | attribute | ||||
| GLOBAL:ReceiverDescription | attribute | ||||
| ReceiverDescriptions | {''} | RS, RSM | string | R-dependent version of the attribute ReceiverDescription | |
| ReceiverPosition | [0 0 0] | m | IC, RCI, RCM | double | |
| ReceiverPosition:Type | spherical | m | attribute | Can be of any type enabling both spatially discrete and spatially continuous representations. | |
| ReceiverPosition:Units | degree, degree, metre | m | attribute | ||
| ReceiverView | [1 0 0] | RCI, RCM | double | ||
| ReceiverUp | [0 0 1] | RCI, RCM | double | ||
| ReceiverView:Type | cartesian | attribute | |||
| ReceiverView:Units | metre | attribute | |||
| GLOBAL:SourceShortName | attribute | ||||
| GLOBAL:SourceDescription | attribute | ||||
| SourcePosition | [0 0 1] | m | MC | double | |
| SourcePosition:Type | cartesian | m | attribute | ||
| SourcePosition:Units | metre | m | attribute | ||
| SourceView | [1 0 0] | m | IC, MC | double | |
| SourceUp | [0 0 1] | m | IC, MC | double | |
| SourceView:Type | cartesian | m | attribute | ||
| SourceView:Units | metre | m | attribute | ||
| GLOBAL:EmitterShortName | attribute | ||||
| GLOBAL:EmitterDescription | attribute | ||||
| EmitterDescriptions | {''} | ES, ESM | string | E-dependent version of the attribute EmitterDescription | |
| EmitterPosition | [0 0 0] | m | IC, ECI, ECM | double | Can be of any type enabling both spatially discrete and spatially continuous representations. |
| EmitterPosition:Type | spherical | m | attribute | ||
| EmitterPosition:Units | degree, degree, metre | m | attribute | ||
| EmitterView | [1 0 0] | ECI, ECM | double | ||
| EmitterUp | [0 0 1] | ECI, ECM | double | ||
| EmitterView:Type | cartesian | attribute | |||
| EmitterView:Units | metre | 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) |
| MeasurementDate | 0 | M | double | Optional M-dependent date and time of the measurement. |