SingleRoomDRIR

Description

This convention set defines a setup used for measuring DRIRs in a single room with a single excitation source and a microphone array containing an arbitrary number of omnidirectional microphones (i.e., receivers). The positions of both the source and the listener are considered as variant. The DRIRs are represented as FIR filters for a single room per file. SingleRoomDRIR consists of:

• General metadata: RoomType: revereberant with a mandatory global attribute RoomDescription.
• Data: Datatype: FIR, the amount of the receivers varies, thus, the size of Data.IR is [M R N].
• Source: The position and the orientation of the source may vary and is given by SourcePosition, SourceUp, and SourceView. The coordinate type is cartesian and unit is meter.
• Emitters: Source consists of a single omnidirectional emitter, which position is fixed, EmitterPosition: (0 0 0). EmitterUp and EmitterView are optional.
• Listener: Position and the orientation of the listener vary and thus ListenerPosition, ListenerView, and ListenerUp are mandatory. The coordinate type is cartesian and unit is meter. An additional rotation of the listener is can be considered, thus, ListenerRotation is optional.
• Receivers: the position of all receivers via ReceiverPosition is provided. The coordinate type is cartesian and unit is meter. The receivers are considered to be omnidirectional, thus, ReceiverUp and ReceiverView are omitted.

Version 0.3

This version uses SOFA 1.0 which reflects the standard AES69-2015.

Name	Default	Flags	Dimensions	Type	Comment
GLOBAL:Conventions	SOFA	rm		attribute
GLOBAL:Version	1.0	rm		attribute
GLOBAL:SOFAConventions	SingleRoomDRIR	rm		attribute	This convention stores arbitrary number of receivers while providing an information about the room. The main application is to store DRIRs for a single room.
GLOBAL:SOFAConventionsVersion	0.3	rm		attribute
GLOBAL:APIName		rm		attribute
GLOBAL:APIVersion		rm		attribute
GLOBAL:ApplicationName				attribute
GLOBAL:ApplicationVersion				attribute
GLOBAL:AuthorContact		m		attribute
GLOBAL:Comment		m		attribute
GLOBAL:DataType	FIR	rm		attribute
GLOBAL:History				attribute
GLOBAL:License	No license provided, ask the author for permission	m		attribute
GLOBAL:Organization		m		attribute
GLOBAL:References				attribute
GLOBAL:RoomType	reverberant	m		attribute
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	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	eCI, eCM	double
EmitterPosition:Type	cartesian	m		attribute
EmitterPosition:Units	metre	m		attribute
GLOBAL:DatabaseName		m		attribute
GLOBAL:RoomDescription		m		attribute
ListenerUp	[0 0 1]	m	IC, MC	double
ListenerView	[1 0 0]	m	IC, MC	double
ListenerView:Type	cartesian	m		attribute
ListenerView:Units	metre	m		attribute
SourceUp	[0 0 1]	m	IC, MC	double
SourceView	[-1 0 0]	m	IC, MC	double
SourceView:Type	cartesian	m		attribute
SourceView:Units	metre	m		attribute
Data.IR	[0]	m	mrn	double
Data.SamplingRate	48000	m	I	double
Data.SamplingRate:Units	hertz	m		attribute
Data.Delay	[0]	m	IR, MR	double

Old deprecated versions

Version 0.1

Name	Default	Flags	Dimensions	Type	Comment
GLOBAL:Conventions	SOFA	rm		attribute
GLOBAL:Version	0.5	rm		attribute
GLOBAL:SOFAConventions	SingleRoomDRIR	rm		attribute	This convention stores arbitrary number of receivers while providing an information about the room. The main application is to store DRIRs for a single room.
GLOBAL:SOFAConventionsVersion	0.1	rm		attribute
GLOBAL:APIName		rm		attribute
GLOBAL:APIVersion		rm		attribute
GLOBAL:ApplicationName		m		attribute
GLOBAL:ApplicationVersion		m		attribute
GLOBAL:AuthorContact		m		attribute
GLOBAL:Comment		m		attribute
GLOBAL:DataType	FIR	rm		attribute
GLOBAL:History		m		attribute
GLOBAL:License	No license provided, ask the author for permission	m		attribute
GLOBAL:Organization		m		attribute
GLOBAL:References		m		attribute
GLOBAL:RoomType	reverberant	m		attribute
GLOBAL:Source		m		attribute
GLOBAL:TimeCreated		m		attribute
GLOBAL:TimeModified		m		attribute
GLOBAL:Title		m		attribute
ListenerPosition	[0 0 0]	m	IC, MC	double
ListenerPosition:Type	cartesian	m		attribute
ListenerPosition:Units	meter	m		attribute
ReceiverPosition	[0 0 0]	m	rCI, rCM	double
ReceiverPosition:Type	cartesian	m		attribute
ReceiverPosition:Units	meter	m		attribute
SourcePosition	[0 0 0]	m	IC, MC	double
SourcePosition:Type	cartesian	m		attribute
SourcePosition:Units	meter	m		attribute
EmitterPosition	[0 0 0]	m	eCI, eCM	double
EmitterPosition:Type	cartesian	m		attribute
EmitterPosition:Units	meter	m		attribute
GLOBAL:DatabaseName		m		attribute
GLOBAL:RoomDescription		m		attribute
ListenerUp	[0 0 1]	m	IC, MC	double
ListenerView	[1 0 0]	m	IC, MC	double
SourceUp	[0 0 1]	m	IC, MC	double
SourceView	[-1 0 0]	m	IC, MC	double
Data.IR	[1 1]	m	mRn	double
Data.SamplingRate	48000	m	I	double
Data.SamplingRate:Units	hertz	m		attribute
Data.Delay	[0 0]	m	IR, MR	double