A voice activity detection apparatus for determining a voice activity detection decision, VADD, for an input audio signal, wherein the voice activity detection apparatus comprises: a state detector adapted to determine a current working state, WS, of at least two different working states of the voice activity detection apparatus dependent on the input audio signal wherein each of the at least two different working states is associated with a corresponding working state parameter decision set, WSPDS, including at least one voice activity decision parameter, VADP; and a voice activity calculator adapted to calculate a voice activity detection parameter value for the at least one VADP of the WSPDS associated with the current WS and to determine the VADD by comparing the calculated voice activity detection parameter value of the respective VADP with a threshold, wherein: said VADP is based on sub-band segmental signal to noise ratio, SNR, said voice activity detection apparatus comprises a normal working state, NWS, and an offset working state, OWS, said voice activity detection apparatus is switched from the NWS to the OWS if the VADD determined by the voice activity calculator of said voice activity detection apparatus in the NWS using a voice activity detection processing algorithm and the normal working state parameter decision set, NWSPDS, provided for said NWS indicates an absence of voice in the input audio signal and a soft hangover counter, SHC, exceeds a predetermined threshold counter value, and said voice activity detection apparatus is switched from the OWS to the NWS if the SHC does not exceed a predetermined threshold counter value. a state detector adapted to determine a current working state, WS, of at least two different working states of the voice activity detection apparatus dependent on the input audio signal wherein each of the at least two different working states is associated with a corresponding working state parameter decision set, WSPDS, including at least one voice activity decision parameter, VADP; and a voice activity calculator adapted to calculate a voice activity detection parameter value for the at least one VADP of the WSPDS associated with the current WS and to determine the VADD by comparing the calculated voice activity detection parameter value of the respective VADP with a threshold, wherein: said VADP is based on sub-band segmental signal to noise ratio, SNR, said voice activity detection apparatus comprises a normal working state, NWS, and an offset working state, OWS, said voice activity detection apparatus is switched from the NWS to the OWS if the VADD determined by the voice activity calculator of said voice activity detection apparatus in the NWS using a voice activity detection processing algorithm and the normal working state parameter decision set, NWSPDS, provided for said NWS indicates an absence of voice in the input audio signal and a soft hangover counter, SHC, exceeds a predetermined threshold counter value, and said voice activity detection apparatus is switched from the OWS to the NWS if the SHC does not exceed a predetermined threshold counter value. said VADP is based on sub-band segmental signal to noise ratio, SNR, said voice activity detection apparatus comprises a normal working state, NWS, and an offset working state, OWS, said voice activity detection apparatus is switched from the NWS to the OWS if the VADD determined by the voice activity calculator of said voice activity detection apparatus in the NWS using a voice activity detection processing algorithm and the normal working state parameter decision set, NWSPDS, provided for said NWS indicates an absence of voice in the input audio signal and a soft hangover counter, SHC, exceeds a predetermined threshold counter value, and said voice activity detection apparatus is switched from the OWS to the NWS if the SHC does not exceed a predetermined threshold counter value.