Method of processing a signal

Method of processing an input sound signal according to claim 1 or 28, wherein at least two of the said predefined directivity patterns (PDP1, PDP2, PDP3, PDP4) form partial components of a desired directive sound source characteristic.

Method of establishing a room response model (RR) and a corresponding desired directive sound source (DDSS), said method comprising the steps of

• representing said desired directive sound source (DDSS) by at least two partial sound source components (PSSC),
• establishing a partial room response model (PRR) for each of the at least two partial sound source components (PSSC),
• establishing the room response model (RR) as a combination of said partial room responses (PRRS).

Room response model (RR) of a room excited by a sound source having a desired directive sound source (DDSS), said model comprising at least two partial sound source components (PSSC),

• said model further comprising a partial room response model (PRR) for each of the at least two partial sound source components (PSSC),
• a combination of said partial room responses (PRRS) forming the resulting room response model (RR).

Room simulation processing apparatus (RSPA),

• said apparatus comprising at least two user selectable sound source directivity patterns (USD).

Room simulation processing apparatus (RSPA),

• said apparatus comprising sound source pattern designing means (SPDM) for establishing at least two different selectable sound source directivity patterns (USD).

Method of establishing a partial room response model (PRR), said method comprising the steps of

• exciting a physical room (R) having certain desired acoustical characteristics by means of a physical sound source (PHSS) having a certain directivity pattern,
• measuring the room response provided by said exciting, and
• storing the measured room response or a modified response as a partial response model (PRR).

Method of establishing a room response comprising the steps of

• establishing a sound source (S) model comprising a plurality of source representing elementals (SRE),
• simulating the room response corresponding to the established source representing elementals (SRE) at a given sound source position and a given listener's position (LP),
• said room response of the source representing elementals (SRE) comprising at least a mapping of at least one delay time representation (DT).