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Institute of Technical Acoustics (ITA)
toolbox
Commits
4ebf02cd
Commit
4ebf02cd
authored
Jan 23, 2018
by
Michael Kohnen
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further renaming, added warnings for older version, new functions
parent
95af82fe
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applications/SpatialAudio/ita_ctc_channelSeparation.m
applications/SpatialAudio/ita_ctc_channelSeparation.m
+18
-0
applications/SpatialAudio/ita_ctc_loudspeaker_signals.m
applications/SpatialAudio/ita_ctc_loudspeaker_signals.m
+52
-0
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applications/SpatialAudio/ita_ctc_channelSeparation.m
0 → 100644
View file @
4ebf02cd
function
[
varargout
]
=
ita_ctc_channelSeparation
(
HRTF_real
,
CTCFilter
,
varargin
)
%ITA_CTC_CHANNELSEPARATION Returns and plots channelseparation for ctc
%systems
% HRTF_real represent the real HRTFs that will occure in the CTC system,
% either as multi-instance itaAudio or coded in channels
% HRTF.ch(1) = HRTF_LS1_Left;
% HRTF.ch(2) = HRTF_LS1_Right;
% HRTF.ch(3) = HRTF_LS2_Left;
% HRTF.ch(4) = HRTF_LS2_Right;
% HRTF.ch(5) = HRTF_LS3_Left;
%
%
end
applications/SpatialAudio/ita_ctc_loudspeaker_signals.m
0 → 100644
View file @
4ebf02cd
function
LSSignals
=
ita_ctc_loudspeaker_signals
(
CTCFilter
,
binauralInput
)
%ITA_CTC_LOUDSPEAKER_SIGNALS Combines binaural input and ctc filter to
%calculate the loudspeaker signals
%
% CTCFilter a multi-instance of itaAudio [ CTC-1L CTC-1R; CTC-2L CTC-2R; ...]
% binauralInput has to be itaAudio with 2 channels
%
%
% Example: loudspeakerSignals=ita_ctc_loudspeaker_signals(CTCFilters_Calculated, BinauralSignalInput)
%% Initialization
if
nargin
<
2
error
(
'CTC:InputArguments'
,
'This function requires two input arguments.'
)
end
binauralInput
=
ita_merge
(
binauralInput
(:));
if
~
isa
(
binauralInput
,
'itaAudio'
)
||
~
isa
(
CTCFilter
,
'itaAudio'
)
error
(
'CTC:InputArguments'
,
'The input variable must be itaAudio objects.'
)
end
% Frequency vectors for the binaural input
if
binauralInput
.
nChannels
~=
2
error
(
'CTC:InputArguments'
,
'The binaural signal must contain two channels.'
)
else
inL
=
binauralInput
.
ch
(
1
);
inR
=
binauralInput
.
ch
(
2
);
end
% Frequency vectors for the CTC filters.
% e.g.: CTC_LR -> transfer function for the filter from the left signal to
% the right loudspeaker.
if
size
(
CTCFilter
,
2
)
~=
2
error
(
'CTC:InputArguments'
,
'The CTC filter must contain two rows.'
)
end
%% CTC filtering
LSSignals
=
itaAudio
(
size
(
CTCFilter
,
1
),
1
);
for
k
=
1
:
size
(
CTCFilter
,
1
)
LSSignals
(
k
)
=
ita_convolve
(
inL
,
CTCFilter
(
k
,
1
))
+
ita_convolve
(
inR
,
CTCFilter
(
k
,
2
));
end
%% Return in time domain as multichannel audio
LSSignals
=
ita_merge
(
LSSignals
(:))
'
;
end
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