hash stringlengths 32 32 | doc_id stringlengths 7 13 | section stringlengths 3 121 | content stringlengths 0 2.2M |
|---|---|---|---|
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 3.2 Abbreviations | For the purposes of the present document, the following abbreviations apply: ∪ Union operator 3D three dimensional C Centre speaker Ch Centre high speaker Chr Centre high rear speaker Clf Centre low front speaker Cs Centre surround speaker dB decibel EMA Exponential Moving Average L Left speaker Lc Left centre speaker ... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 4 Renderer Metadata | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 4.1 Overview of the Renderer Inputs | The DTS-UHD point source object renderer is a system that computes the waveform associated with a specified speaker configuration, given a collection of audio objects as input, as shown in Figure 1. The renderer metadata assumes the model of a sphere with the listener's head at the centre (an ego-centric model). All sp... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 4.2 DTS-UHD Bitstream Metadata | DTS-UHD metadata is defined in ETSI TS 103 491 [1]. Since the renderer described in the present document is intended to be used in conjunction with the DTS-UHD bitstream, the DTS-UHD metadata parameters relating to the renderer are shown in Table 1. Note that Table 1 accommodates restrictions inherent in DTS-UHD metada... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 4.3 DTS-UHD Object Interactivity Manager | Renderer APIs may allow the object metadata from the DTS-UHD bitstream to be overridden by the user during playback. Metadata in the bitstream may also be set to limit or disable a user interaction. The object interactivity manager enforces these rules and applies any user changes to the metadata before calling the ren... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 5 Variables and Class Types | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 5.1 Global Variables | The following data types and variables are used throughout the present document: • AO: An object of type AudioObject. • H: An object of type Hull. • MO: An object of type MonoObject. • PSOR: An object of type PointSourceObjectRenderer. • SC: An object of type SpeakerConfiguration. A speaker configuration consists of a ... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 5.2 Renderer Object Classes | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 5.2.1 Point | A point is a location of any entity (for example, speaker or audio object) in the listening space. It is specified by polar coordinates - azimuth (θ) elevation (φ) and radius (r). For the purposes of the present document, only the points on the unit sphere are needed, which means the radius shall be equal to 1. The lis... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 5.2.2 Edge | An Edge is a line segment connecting two points. For the purposes of the present document, the edge structure shall be a set of two Points. struct Edge { // Constructor Edge(Point p1, Point p2) : p1(p1), p2(p2) {} // The two points representing the edge. Point p1, p2; // Equals operator bool operator==(Edge other) { re... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 5.2.3 SpeakerConfiguration | A speaker configuration lists the location of physical speakers in the listening space. This shall be established when initializing the renderer. Speaker configuration is represented as follows: class SpeakerConfiguration { Point speaker_locations[]; uint32 GetChannelMask(); }; SpeakerConfiguration::GetChannelMask() { ... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 5.2.4 EMASmoother | EMASmoother is a class supporting an Exponential Moving Average (EMA) smoothing function. The renderer processes each audio object in blocks. A block contains a set of audio samples with associated metadata. The size of the block, defined as the number of audio samples in the block, is specified at the rendering stage.... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 5.2.5 MonoObject | A mono object consists of a single waveform with a list of associated points. A mono object can have more than one point source location. The following structure defines the mono object class. class MonoObject { // List of point sources locations. Point positions[]; // Single waveform - array of audio samples for the b... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 5.2.6 AudioObject | An audio object is defined as a set of mono objects. An audio object consists of object properties such as, object_id, object_gain, object_lambda (smoothing factor) along with a list of MonoObjects. The following structure defines the AudioObject class: class AudioObject { MonoObject mono_objects[]; float obj_lambda; f... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 5.2.7 Vector | The definition of the Vector class is provided below without an implementation. It supports basic vector operations, such as dot product and cross products. // A Vector class defined without implementation. class Vector { Dot( Vector other ); // Computes dot product Cross( Vector other ); // Computes cross product int ... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 5.2.8 Matrix | The definition of the Matrix class is provided below without an implementation. It supports basic matrix multiplication and inverse functions. The Matrix class shall have fixed dimensions of three rows by three columns. // A matrix class defined without implementation. class Matrix { Column(col); // Peek the column col... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 5.2.9 Triplet | A triplet is a spherical triangle formed on the unit-sphere surface specified by a set of three non-collinear points. Triplets are used within Hull (clause 5.2.10) to represent its surface mesh. Triplet is defined as follows: class Triplet { Point p1; Point p2; Point p3; // return Matrix object GetTripletMatrix(); // r... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 5.2.10 Hull | A hull is a set of points formed by combining the physical loud speaker locations and the virtual speaker locations. These points are used to form a surface mesh by grouping them into triplets. The structure below defines the Hull class. class Hull { Triplet T[]; // list of triplets Point hull_points[]; // list of poin... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 5.2.11 Virtual Speakers | A virtual speaker for a given speaker configuration is specified by the position on the unit sphere and the fold-down contributions to the specified physical speaker configuration. Virtual speakers enable the vector based panner to create a complete three-dimensional hull. The vector based panner is supported by two vi... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 5.2.12 VectorBasedPanner | The renderer uses vector based panning to calculate gain contributions of every point source location to the given output speaker configuration. The algorithm for the vector based panner is further defined in clause 6.5.2. The following pseudocode defines the VectorBasedPanner class. class VectorBasedPanner { SpeakerCo... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 5.2.13 PointSourceObjectRenderer | The class PointSourceObjectRenderer shows the interface to the renderer. There are two public APIs: • Init() - renderer initialization • RenderAllObjects() - rendering objects The calls to the renderer are defined below: class PointSourceObjectRenderer { public: // Initialize the renderer. Init(SpeakerConfiguration sc)... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 5.3 Other Helper Functions | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 5.3.1 Join | Join() combines multiple collections of objects into one container. A simple pseudocode for Join() is provided below: // Join lists in a two dimensional array // or arrays specified in comma separated list. Join( collection[][] ) { res = []; for ( i : collection.size() ) { for ( val : collection[i].size() ) res += val;... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 5.3.2 MapAzimuthTo0_360 | MapAzimuthTo0_360() converts azimuth to all positive angles. Angles in the range [-180◦ : 0◦] are mapped to [180◦ : 360◦]. MapAzimuthTo0_360(Point points[]) { modified_points = [] for (p : points) { new_az = (p.azimuth - floor(p.azimuth / 360) * 360); modified_points += { new_az, p.elevation, p.radius }; } return modif... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 5.3.3 GetEquatorialPoints | GetEquatorialPoints() returns the points on the equator. GetEquatorialPoints(Points points[]) { equatorial_points = []; for ( p : points ) { if ( p.elevation == 0 ) equatorial_points += p; } return equatorial_points; } |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 5.3.4 NumUpperHemispherePoints | NumUpperHemispherePoints() returns the number of points in the upper hemisphere. For the purposes of this function, this excludes points on the equator. NumUpperHemispherePoints(Point points[]) { count = 0; for ( p : points ) { if (p.elevation > 0) ++count; } return count; } |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 5.3.5 NumLowerHemispherePoints | NumLowerHemispherePoints() returns the number of points in the lower hemisphere. For the purposes of this function, this excludes points on the equator. NumLowerHemispherePoints(Point points[]) { count = 0; for ( p : points ) { if (p.elevation < 0) ++count; } return count; } ETSI ETSI TS 103 584 V1.1.1 (2018-01) 24 |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 6 Point Source Object Renderer | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 6.1 Operation of the Renderer | The rendering system shall be initialized with an output SpeakerConfiguration before it is used. After initialization, a list of audio objects is rendered one block at a time. The underlying system that enables initialization and rendering is shown in Figure 5. The interface to the renderer consists of two APIs: • Init... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 6.2 Renderer Initialization | The initialization of the renderer involves identifying virtual speakers and setting up the hull for panning, both of which are handled during initialization of VectorBasedPanner. The PointSourceObjectRenderer::Init() is initializing VectorBasedPanner as shown in the pseudocode below: PointSourceObjectRenderer::Init(Sp... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 6.3 Virtual Speakers | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 6.3.1 Virtual Speakers Positioning | For listening layouts with large angular spacing between the speakers, it may be impossible to create the necessary convex hull for the proper operation of vector based 3D rendering. Successful creation of a convex hull over a set of physical speakers is achieved by carefully placing additional virtual speakers. In thi... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 6.3.2 Predefined Virtual Speakers | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 6.3.2.1 Predefined Virtual Speakers Layouts | Predefined virtual speakers have been carefully designed for specific sets of physical speaker layouts. The supported sets of physical speaker layouts are classified into groups which are enumerated in clauses 7.3 and 7.4. The predefined virtual speakers consist of 10 predefined locations, a subset of which is chosen d... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 6.3.2.2 PredefinedVirtualSpeakers::IsSupported | The pseudocode below determines whether the PredefinedVirtualSpeakers algorithm can support the specified speaker configuration. PredefinedVirtualSpeakers::IsSupported(SpeakerConfiguration SC) { // Extract channel layout mask from speaker configuration speaker_layout_channel_mask = SC.GetChannelMask(); // Mask away cha... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 6.3.2.3 PredefinedVirtualSpeakers::GetVirtualSpeakersAndFolddownCoeffs | The pseudocode below shows the logic of finding the virtual speakers and their fold-down coefficients. The input to the function is the physical speaker configuration. PredefinedVirtualSpeakers::GetVirtualSpeakersAndFolddownCoeffs( SpeakerConfiguration config ) { // Extract channel layout mask from speaker configuratio... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 6.3.3 Auto Virtual Speakers | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 6.3.3.1 Overview of Automatic Virtual Speaker Mapping | When the SpeakerConfiguration is not supported by the PredefinedVirtualSpeaker algorithm, then the AutoVirtualSpeaker algorithm is employed. There are multiple stages in this algorithm: • Add virtual speakers in the equatorial plane • Add virtual speakers in the upper hemisphere • Add virtual speakers in the lower hemi... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 6.3.3.2 Add Virtual Speakers in the Equatorial Plane | Virtual speakers are added in the equatorial plane if they are spaced more than 180 degrees apart when measured in the clockwise direction. They are added at 1/3 and 2/3 of the azimuth gap between the furthest speakers. GetEquatorialVirtualSpeakers(SpeakerConfiguration SC) { equatorial_points = GetEquatorialPoints(SC.s... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 6.3.3.3 Add Virtual Speakers in the Upper Hemisphere | Virtual speakers are added in the upper hemisphere only if there are no speakers with elevation above 0 degrees. If this condition is met, add a virtual speaker at an elevation of 45 degrees above every virtual and physical speaker in the equatorial plane. GetUpperHemiVirtualSpeakers(SpeakerConfiguration SC, Point V_e[... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 6.3.3.4 Add Virtual Speakers in the Lower Hemisphere | Virtual speakers are added in the lower hemisphere only if there are no speakers with elevation above 0 degrees. If this condition is met, add a virtual speaker below every virtual and physical speaker in the equatorial plane at an elevation of -45 degrees. GetLowerHemiVirtualSpeakers(SpeakerConfiguration SC, Point V_e... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 6.3.3.5 Calculate Fold-down Coefficients for Equatorial Virtual Speakers | If there are virtual speakers in the equatorial plane which were added at 1/3 and 2/3 of the azimuth gap between the furthest speakers, they are remapped between those physical speakers on the smaller arc on the equatorial circle and then panned pairwise to the new location for folding. Remapping the azimuth of the vir... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 6.3.3.6 Calculate Fold-down Coefficients for the Upper and Lower Hemisphere | The fold-down coefficients for folding the upper and lower hemisphere virtual speakers into a speaker configuration is calculated by first collapsing the virtual speakers into the equator with a small spread. The virtual speakers are dropped down (or pulled up) by moving every point in the upper or lower hemisphere vir... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 6.3.4 GetVirtualSpeakersAndFolddownCoeffs | The multiple steps described in clause 6.3.3.1 are combined in the implementation of GetVirtualSpeakersAndFolddownCoeffs(). A temporary hull object is created using the generated virtual speakers and the speaker configuration. AutoVirtualSpeakers::GetVirtualSpeakersAndFolddownCoeffs(SpeakerConfiguration SC) { // Get eq... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 6.3.5 Hull Initialization | Hull points are formed by combining physical and virtual speaker locations. At the initialization stage, a set of triplets are calculated, forming the surface mesh using the hull points. An exhaustive search is performed on all the triplets formed from the hull points in order to triangulate the hull. Each triplet is a... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 6.4 Predefined Virtual Speakers Organization | The predefined virtual speaker assignments and corresponding fold-down coefficients are organized by the channel bitmask. There are 21 non-overlapping groups of channel bitmasks for the equatorial plane and/or upper hemisphere regions that have defined virtual speakers with corresponding fold-down coefficients. These g... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 6.5 Rendering All Objects | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 6.5.1 Object Rendering | Rendering all objects involves panning all the objects in the specified SpeakerConfiguration, followed by smoothing and mixing them into the output feeds. The pseudocode below illustrates the implementation of RenderAllObjects(), which renders one AudioObject at a time. Similarly, RenderAudioObject() renders one MonoOb... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 6.5.2 Vector Based Panner | The vector based panner takes a point and pans it to the speaker configuration. VBP manages the hull, virtual speakers and their fold-down coefficients. The panning algorithm first pans the point to the hull and then fold-down coefficients are applied to the panned gain coefficients in the specified speaker configurati... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 6.5.3 Panning in a Hull | After the hull triplets are constructed (see clause 6.3.5), the panner is ready to pan any point on the surface of the sphere. For a given Hull, the panner renders a point source location in that hull by first finding set of triplets that contain the point source location and then pan the point in those triplets using ... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7 Predefined Virtual Speaker Mapping | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.1 Channel Bitmask | The channel layouts defined in clause 7.3 and clause 7.4 contain the entire set supported by the predefined virtual speaker mode. The channel masks are specified by the channel layout bitmask which is formed by taking bitwise disjunction of individual channels' bitmasks as defined in Table 3. ETSI ETSI TS 103 584 V1.1.... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.2 General Mapping Functions | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.2.1 GetLinearGainVectorFromTable | This function converts the fold-down coefficients tables defined in clause 7.3 and clause 7.4 into gain vectors. // Get fold-down coefficients for a virtual point in linear scale. GetLinearGainVectorFromTable( GainCoefficient_dB table, FunctionP mapping_functions[], uint virtual_p_idx, Point speaker_locations[] ) { out... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.2.2 Physical Speaker Search Functions | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.2.2.1 Search Functions Overview | A physical speaker is identified by the location of the speaker in the listening space. This location can be specified as a tuple of azimuth θ, elevation φ and radius r. As with the object positions, azimuth varies from -180 degrees to 180 degrees; a negative angle indicates speaker on the left hemisphere and the posit... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.2.2.2 ClosestAzEq | ClosestAzEq(θ) returns the physical speaker index from the set SC.speaker_locations[] that meets two conditions: 1) It is located in equatorial plane (φ = 0). 2) It is closest to the specified azimuth (). |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.2.2.3 ClosestAzUH | ClosestAzUH(θ) returns the physical speaker index from the set SC.speaker_locations[] that meets two conditions: 1) It is located in the equatorial plane or upper hemisphere (φ ≥ 0). 2) It is closest to the specified azimuth (). |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.2.2.4 ClosestElv | ClosestElv(φ, S) returns the physical speaker index from the set S, which is a subset of SC.speaker_locations[] whose elevation is closest to the specified elevation φ. |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.2.2.5 LeftLargestEqtr | LeftLargestEqtr() returns the physical speaker index from set SC.speaker_locations[] that meets two conditions: 1) It is located on the equatorial plane (φ = 0). 2) It has largest magnitude azimuth in the left hemisphere (0 > > −180°). |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.2.2.6 RightLargestEqtr | RightLargestEqtr() returns the physical speaker index from set in SC.speaker_locations[] that meets two conditions: 1) It is located on the equatorial plane (φ = 0). 2) It has largest azimuth in the right hemisphere (0 < < 180°). ETSI ETSI TS 103 584 V1.1.1 (2018-01) 41 |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.2.2.7 PrefOrder | PrefOrder(Spkr1, Spkr2,...) is used to specify the preference order of speakers to contribute to. It returns the index of the first speakers from the input ordered speaker list that exist in the physical speakers set. It is used in cases where all of Spkr1, Spkr1+ Spkr2 & Spkr2 are possible output layouts. To resolve s... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.2.2.8 Split | Split(Spkr1,Spkr2,…,Gain_dB) is used to specify the split of contribution between speakers Spkr1, Spkr2 … SpkrN by Gain_dB gain. The splitting only happens if all the speakers in the list exist. |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.2.2.9 ExclusiveOr | ExclusiveOr(Spkr1, Spkr2, …) is used to specify disjunction choice of the speakers. In such cases only one of the speakers exists and hence, apply the contribution specified to that speaker. |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3 Equatorial Plane and Upper Hemisphere | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.1 Equatorial Plane and Height Functions | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.1.1 GetChannelMaskForEqtrUpHemiGroups | This function masks the LFE channels to zero from the physical channel layouts speakers. GetChannelMaskForEqtrUpHemiGroups( physical_speaker_channel_layout_mask ) { // Defining masking flags that will be masked to zero for channel layout groups. mask_lfe = LFE1 | LFE2; // Take negation of lfe masks mask_to_zero = (~mas... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.1.2 GroupEquatorOrUpper | The following structure represents a group in the equatorial plane or the upper hemisphere virtual speakers. struct GroupEquatorOrUpper { // An array listing all the channel masks supported by the group. uint32 list_of_channel_masks[]; // An array of equatorial virtual speakers used by the group. Point eqtr_virt_srcs[]... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.1.3 list_of_all_groups_equator_or_upper | The following list defines all the supported groups for custom virtual speakers in the upper hemisphere and the equatorial plane. list_of_all_groups_equator_or_upper = { GroupEquatorOrUpper1, GroupEquatorOrUpper2, … GroupEquatorOrUpper21 }; |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.2 GroupEquatorOrUpper1 | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.2.1 Channel Layouts in GroupEquatorOrUpper1 | Channel layout bitmasks that use GroupEquatorOrUpper1 fold-down coefficients are listed in Table 4. Table 4: GroupEquatorOrUpper1 list_of_channel_masks[] 0x00000006 0x00001800 0x00001E00 0x00060000 0x00060600 0x00061800 0x00061E00 0x00000007 0x00001801 0x00001E01 0x00060001 0x00060601 0x00061801 0x00061E01 0x00000606 0... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.2.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper1 | Fold-down coefficients for virtual speakers in the equatorial plane are derived from Table 5. Table 5: GroupEquatorOrUpper1 Fold-down Coefficients for Virtual Speakers in Equatorial Plane Physical Speakers eqtr_functions LeftLargestEqtr() RightLargestEqtr() Virtual Speakers eqtr_virt_srcs eqtr_folddown[][] (-135, 0, 1)... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.3 GroupEquatorOrUpper2 | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.3.1 Channel Layouts in GroupEquatorOrUpper2 | Channel layout bitmasks that use GroupEquatorOrUpper2 fold-down coefficients are listed in Table 7. Table 7: GroupEquatorOrUpper2 list_of_channel_masks[] 0x01800006 0x01861E00 0x01C61800 0xC0060600 0xC0460000 0xC1801E00 0xC1C01800 0x01800007 0x01861E01 0x01C61801 0xC0060601 0xC0460001 0xC1801E01 0xC1C01801 0x01800606 0... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.3.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper2 | Fold-down coefficients for virtual speakers in the equatorial plane are derived from Table 8. Table 8: GroupEquatorOrUpper2 Fold-down Coefficients for Virtual Speakers in Equatorial Plane Physical Speakers eqtr_functions LeftLargestEqtr() RightLargestEqtr() PrefOrder(Lhr,Ltr) PrefOrder(Rhr,Rtr) Virtual Speakers eqtr_vi... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.4 GroupEquatorOrUpper3 | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.4.1 Channel Layouts in GroupEquatorOrUpper3 | Channel layout bitmasks that use GroupEquatorOrUpper3 fold-down coefficients are listed in Table 10. Table 10: GroupEquatorOrUpper3 list_of_channel_masks[] 0x00404006 0x00405800 0x00405E00 0x00464000 0x00464600 0x00465800 0x00465E00 0x00404007 0x00405801 0x00405E01 0x00464001 0x00464601 0x00465801 0x00465E01 0x00404606... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.4.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper3 | Fold-down coefficients for virtual speakers in the equatorial plane are derived from Table 11. Table 11: GroupEquatorOrUpper3 Fold-down Coefficients for Virtual Speakers in Equatorial Plane Physical Speakers eqtr_functions LeftLargestEqtr() RightLargestEqtr() Chr Virtual Speakers eqtr_virt_srcs eqtr_folddown[][] (-135,... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.5 GroupEquatorOrUpper4 | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.5.1 Channel Layouts in GroupEquatorOrUpper4 | Channel layout bitmasks that use GroupEquatorOrUpper4 fold-down coefficients are listed in Table 13. Table 13: GroupEquatorOrUpper4 list_of_channel_masks[] 0x00300006 0x00301800 0x00301E00 0x00360000 0x00360600 0x00361800 0x00361E00 0x00300007 0x00301801 0x00301E01 0x00360001 0x00360601 0x00361801 0x00361E01 0x00300606... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.5.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper4 | Fold-down coefficients for virtual speakers in the equatorial plane are derived from Table 14. Table 14: GroupEquatorOrUpper4 Fold-down Coefficients for Virtual Speakers in Equatorial Plane Physical Speakers eqtr_functions PrefOrder (Lss,Lhs,Ltm) PrefOrder (Rss,Rhs,Rtm) Virtual Speakers eqtr_virt_srcs eqtr_folddown[][]... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.6 GroupEquatorOrUpper5 | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.6.1 Channel Layouts in GroupEquatorOrUpper5 | Channel layout bitmasks that use GroupEquatorOrUpper5 fold-down coefficients are listed in Table 16. Table 16: GroupEquatorOrUpper5 list_of_channel_masks[] 0x00400006 0x00401800 0x00401E00 0x00460000 0x00460600 0x00461800 0x00461E00 0x00400007 0x00401801 0x00401E01 0x00460001 0x00460601 0x00461801 0x00461E01 0x00400606... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.6.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper5 | Fold-down coefficients for virtual speakers in the equatorial plane are derived from Table 17. Table 17: GroupEquatorOrUpper5 Fold-down Coefficients for Virtual Speakers in Equatorial Plane Physical Speakers eqtr_functions LeftLargestEqtr() RightLargestEqtr() Chr Virtual Speakers eqtr_virt_srcs eqtr_folddown[][] (-135,... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.7 GroupEquatorOrUpper6 | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.7.1 Channel Layouts in GroupEquatorOrUpper6 | Channel layout bitmasks that use GroupEquatorOrUpper6 fold-down coefficients are listed in Table 19. Table 19: GroupEquatorOrUpper6 list_of_channel_masks[] 0x00004006 0x00005800 0x00005E00 0x00064000 0x00064600 0x00065800 0x00065E00 0x00004007 0x00005801 0x00005E01 0x00064001 0x00064601 0x00065801 0x00065E01 0x00004606... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.7.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper6 | Fold-down coefficients for virtual speakers in the equatorial plane are derived from Table 20. Table 20: GroupEquatorOrUpper6 Fold-down Coefficients for Virtual Speakers in Equatorial Plane Physical Speakers eqtr_functions LeftLargestEqtr() RightLargestEqtr() Virtual Speakers eqtr_virt_srcs eqtr_folddown[][] (-135,0,1)... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.8 GroupEquatorOrUpper7 | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.8.1 Channel Layouts in GroupEquatorOrUpper7 | Channel layout bitmasks that use GroupEquatorOrUpper7 fold-down coefficients are listed in Table 22. Table 22: GroupEquatorOrUpper7 list_of_channel_masks[] 0x0000A006 0x0006A000 0x0006F800 0x30005800 0x3000F800 0x30064000 0x3006B800 0x0000A007 0x0006A001 0x0006F801 0x30005801 0x3000F801 0x30064001 0x3006B801 0x0000A606... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.8.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper7 | Fold-down coefficients for virtual speakers in the equatorial plane are derived from Table 23. Table 23: GroupEquatorOrUpper7 Fold-down Coefficients for Virtual Speakers in Equatorial Plane Physical Speakers eqtr_functions LeftLargestEqtr() RightLargestEqtr() Virtual Speakers eqtr_virt_srcs eqtr_folddown[][] (-135,0,1)... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.9 GroupEquatorOrUpper8 | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.9.1 Channel Layouts in GroupEquatorOrUpper8 | Channel layout bitmasks that use GroupEquatorOrUpper8 fold-down coefficients are listed in Table 25. Table 25: GroupEquatorOrUpper8 list_of_channel_masks[] list_of_channel_masks[] 0x00304006 0x0030F800 0x0036A600 0x30300006 0x3030B800 0x30361800 0x3036A600 0x00304007 0x0030F801 0x0036A601 0x30300007 0x3030B801 0x303618... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.9.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper8 | Fold-down coefficients for virtual speakers in the equatorial plane are derived from Table 26. Table 26: GroupEquatorOrUpper8 Fold-down Coefficients for Virtual Speakers in Equatorial Plane Physical Speakers eqtr_functions LeftLargestEqtr () RightLargestEqtr () Virtual Speakers eqtr_virt_srcs eqtr_folddown[][] (-135, 0... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.10 GroupEquatorOrUpper9 | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.10.1 Channel Layouts in GroupEquatorOrUpper9 | Channel layout bitmasks that use GroupEquatorOrUpper9 fold-down coefficients are listed in Table 28. Table 28: GroupEquatorOrUpper9 list_of_channel_masks[] 0x00700006 0x01B00006 0x01F00006 0xC0300006 0xC0700006 0xC1B00006 0xC1F00006 0x00700007 0x01B00007 0x01F00007 0xC0300007 0xC0700007 0xC1B00007 0xC1F00007 0x00700606... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.10.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper9 | Fold-down coefficients for virtual speakers in the equatorial plane are derived from Table 29. Table 29: GroupEquatorOrUpper9 Fold-down Coefficients for Virtual Speakers in Equatorial Plane Physical Speakers eqtr_functions PrefOrder (Lhr, Split (Lss,Chr,-3 dB), ClosestElv (0, ClosestAzUH(-90))) PrefOrder (Rhr, Split (R... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.11 GroupEquatorOrUpper10 | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.11.1 Channel Layouts in GroupEquatorOrUpper10 | Channel layout bitmasks that use GroupEquatorOrUpper10 fold-down coefficients are listed in Table 31. Table 31: GroupEquatorOrUpper10 list_of_channel_masks[] 0x0040A006 0x01C6FE00 0x31865E00 0xC000B800 0xC186E000 0xF0301E00 0xF1861E00 0x0040A007 0x01C6FE01 0x31865E01 0xC000B801 0xC186E001 0xF0301E01 0xF1861E01 0x0040A6... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.11.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper10 | Fold-down coefficients for virtual speakers in the equatorial plane are derived from Table 32. Table 32: GroupEquatorOrUpper10 Fold-down Coefficients for Virtual Speakers in Equatorial Plane Physical Speakers eqtr_functions PrefOrder (Lhr, Split (Lss,Chr,-3 dB), ClosestElv (0, ClosestAzUH(-90))) PrefOrder (Rhr, Split (... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.12 GroupEquatorOrUpper11 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.