Apparatus for merging spatial audio streams

1. The hardware unit (100) for combining the first spatial audio stream with a second spatial audio stream to obtain a merged audio stream comprising a judging unit (120) for estimating a first wave representation comprising a first wave direction dimension Incoming Characterizing the direction of the first wave, and the measurement of the first wave field It is the relative magnitude of the first wave, the first spatial audio stream having a first audio representation comprising a pressure measurement or magnitude of the first audio signal (P(1)), And the first direction revenue And to assess the presentation of the second wave, comprising measuring the direction of receipt of the second wave, which characterizes the direction of the second wave And the measurement field of the second wave It is the relative magnitude of the second wavelength for the second spatial audio stream having a second audio representation comprising a pressure or measuring the magnitude of the second audio signal (R(2)), And the second direction revenue ; and a processor (130) for processing the first and second waves of the submission and receipt of submission of the combined wave containing a combined measurement of the wave field, Measuring the combined areas of revenue and the combined diffuseness parameter , And the combined diffuseness parameter obtained using the combined measurement of the wave field , The first audio representation (P(1)) And the second audio representation (P(2)), And combined with the measurement of the wave field based on the measurement field of the first wave, the second wave field measurements, the measurement direction of the first wave Incoming and the direction of the second wave of revenue , Wherein the processor (130) adapted for processing the first audio representation (P(1)) And the second audio representation (P(2)) And obtain a combined audio representation (P), and to form a combined audio stream comprising combined audio representation (P), the combined measurement direction Incoming and the combined diffuseness parameter . 2. The hardware unit (100) according to claim 1, wherein the evaluation unit (120) adapted for estimating the first wave field measure in terms of a first wave field amplitude and for estimating the second wave field measure in terms of a second wave field amplitude and for estimating the difference phase measurements between the first and second wave field and / or for estimating the first wave field phase and a second wave field phase. 3. The hardware of claim 1, comprising a block (110) for determining a first audio representation for the first spatial audio stream the first measuring direction and the receipt of the first diffuseness parameter, and for determining the second audio representation for the second spatial audio stream the second direction dimension income and second diffuseness parameter. 4. The hardware of claim 1 wherein the processor (130) adapted for determining the merged audio representation, measuring receipt joint direction and diffuseness parameter of the combined considering the time-frequency relationship. 5. The hardware unit (100) according to claim 1, wherein the estimator (120) is adapted for estimating the first and / or second wave representations, wherein the processor (130) adapted to obtain a combined audio representation in terms of a pressure signal p (t), or frequency -Time converting the pressure signal P (k, n), where k denotes a frequency index and n denotes a time index. 6. The hardware unit (100) according to claim 5, wherein the processor (130) adapted to process the first and second measurement directions of receipt and / or combined to provide a measurement direction proceeds in terms of unit vectors eDOA(K, n), where eDOA(K, n) = - eI(K, n) and . where P (k, n) is the pressure of merged stream and U (k, n) = [Ux(K, n), Uy(K, n), Uz(K, n)] denote the time-frequency transform u (t) = [ux(T), uy(T), uz(T)] the velocity vector particles combined audio stream, where Re {·} denotes the real part. 7. The hardware unit (100) according to claim 6, wherein the processor (130) adapted to process the first and / or the second diffuseness parameters and / or for the combined diffuseness parameter in terms of . where U (k, n) = [Ux(K, n), Uy(K, n), Uz(K, n)] denote the time-frequency transformation of the velocity vector of the particles combined audio stream, where Re {·} denote u (t) = [ux(T), uy(T), uz(T)] the real part, P (k, n) denotes the time-frequency converting the pressure signal p (t), k denotes a frequency index, n denotes a time index, c is the speed of sound, and denotes the energy of the sound field, ρ0 indicates air density and <·>t denotes averaging over time. 8. The hardware unit (100) according to claim 7, wherein the evaluation unit (120) adapted for estimating a plurality of N wave representations and presenting diffuse field as approximations for a plurality of N spatial audio streams Where 1≤i≤N, and wherein the processor (130) adapted for determining the merged direction of arrival of sound, based on the evaluation, . . . . . . with real numbers α(I)(K, n), β(I)(K, n) ∈ {0 ... 1}, U (k, n) = [Ux(K, n), Uy(K, n), Uz(K, n)] denote the time-frequency transform u (t) = [ux(T), uy(T), uz(T)] the velocity vector particles combined audio stream, where Re {·} denotes the real part, P(I)(K, n) denotes the time-frequency converting the pressure signal p(I)(T), k denotes a frequency index, n denotes a time index, c is the sound speed, N the number of spatial audio streams, c is the sound velocity, and ρ0 denotes the air density. 9. The hardware unit (100) according to claim 8, wherein the estimator (120) adapted to determine α(I)(K, n) and β(I)(K, n) in accordance with α(I)(K, n) = β(I)(K, n) . 10. The hardware unit (100) according to claim 8, wherein the processor (130) adapted to determine α(I)(K, n) and β(I)(K, n) in accordance with the formulas α(I)(K, n) = 1 . 11. The hardware unit (100) according to claim 9, wherein the processor (130) adapted for determining the merged diffuseness parameter by the formula 12. The hardware unit (100) according to claim 1, wherein the first spatial audio stream further comprises a first diffuseness parameter (Ψ(1)), With a second spatial audio stream further comprises a second diffuseness parameter (Ψ(2)) And a processor (130) adapted to calculate the diffuseness parameter of the combined using a first diffuseness parameter (Ψ(1)) And the second diffuseness parameter (Ψ(2)). 13. The method combining the first spatial audio stream with a second spatial audio stream to obtain a merged audio stream comprising the first estimate of the wave representation comprising a first wave direction dimension Characterizing the direction of the first wave, and the measurement of the first wave of the field It is the relative magnitude of the first wave, the first spatial audio stream having a first audio representation comprising a pressure measurement or magnitude of the first audio signal (P(1)), And the first direction of arrival of sound ; and evaluation of the second wave representation comprising a second wave direction, which characterizes the direction of the second waveAnd the measurement field of the second wave It is the relative magnitude of the second wavelength for the second spatial audio stream having a second audio representation comprising a pressure or measuring the magnitude of the second audio signal (R(2)), And the second direction of arrival of sound ; and processing the first wave representation and the second wave representation to obtain the merged wave representationContaining a combined measurement of the wave field, measuring the combined areas of income and merged diffuseness parameter , And the combined option diffuseness obtained by measuring the direction of the first wave and the second wave of the measurement direction; processing the first audio representation (P(1)) And the second audio representation (P(2)) To obtain a combined audio representation (P) and forming a combined audio stream comprising combined audio representation (P), the combined measurement direction Incoming and the combined diffuseness parameter . 14. The method of claim 13, wherein the first spatial audio stream further comprises a first diffuseness parameter (Ψ(1)); second spatial audio stream further comprises a second diffuseness parameter (Ψ(2)), And the combined option diffuseness calculated in step further processing using a first diffuseness parameter (Ψ(1)) And the second diffuseness parameter (Ψ(2)). 15. Computer program having a program code for performing the method to claim 13 when the program is run on a computer or processor.