pranjal

Active since 2014

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Question

how to get confusion matrix when neural network toolbox is used?
i have used NN toolbox for classification. after network is trained, "performance plot", "regression plot" and "training state p...

meer dan 9 jaar ago | 2 answers | 0

2

answers

Question

how to find variance of audio signal?
i have cry signal as my audio input in .wav format. want to find its variance. pls help

meer dan 9 jaar ago | 1 answer | 0

1

answer

Question

how to find variance of audio signal?
i am working on cry samples of infants to classify jaundice and Apnea ailment(based on cry analysis). Using STFT pitch is tracke...

meer dan 9 jaar ago | 0 answers | 0

0

answers

Question

want to display output in the form of texts in neural network.pls help
my project is classifying audio signals as normal, jaundice or apnea ailment baby cry signals. i have constructed neural network...

meer dan 9 jaar ago | 1 answer | 0

1

answer

Question

what type of input is given for ANN (neural network)?
i have audio files of 3 different types and want to classify them. planning to use neural network for this which will automatica...

meer dan 9 jaar ago | 2 answers | 0

2

answers

Question

which classifier is suitable for classifying audio signals using MFCC?
I am working on audio signals(infant cry signals).I have extracted mel frequency cepstral coefficients (MFCCs) of all samples. n...

meer dan 9 jaar ago | 0 answers | 0

0

answers

Question

what are "frequency bins"?
when spectrum of signal is plotted at many places term frequency bins is used instead of frequency.what it means?how is it diffe...

meer dan 9 jaar ago | 1 answer | 0

1

answer

Question

how to convert audio signal into binary signal for using in classifier?
i have audio signals and want to classify them in 3 categories. what type classifier i can use? for that my audio files needs to...

meer dan 9 jaar ago | 0 answers | 0

0

answers

Question

what does blue colour in frequency representation of audio signal indicates?
i have audio signal which is baby's cry signal. it is plotted in frequency domain. signal is shown in green colour but some part...

meer dan 9 jaar ago | 1 answer | 0

1

answer

Question

anyone has matlab code of classifier for audio classification?pls help
I have 3 sets of audio signals in .wav format. one set is healthy infant cry signal. other with Jaundice and Apnea disease. i wa...

meer dan 9 jaar ago | 0 answers | 0

0

answers

Question

how to change the frequency scale of spectrogram?
i have plotted spectrogram of 'cry signal' and want to observe the exact frequencies on it.is it possible to change the scale o...

meer dan 9 jaar ago | 0 answers | 0

0

answers

Question

what is the unit of amplitude when 'cry signal' is represented in time domain?
when cry signal(audio signal)is represented in time domain, what is the unit of amplitude(y-axis)? At many places i found diagra...

meer dan 9 jaar ago | 1 answer | 0

1

answer

Question

how many training samples are required for knn classifier? (minimum number of samples)
for knn classifier to be used what is the minimum required number of training data or samples needed?

bijna 10 jaar ago | 1 answer | 0

1

answer

Question

how to use knn classifier for classifying cry signals of infants?
i am working on cry signals of new born babies. mainly i want to classify normal baby and babies with apnea and jaundice ailment...

bijna 10 jaar ago | 1 answer | 0

1

answer

Question

need help in plotting mel frequency cepstral coefficients.
audio signal is inputted in .wav format and its mel frequency cepstral coefficients are extracted(MFCCs). these are stored in va...

bijna 10 jaar ago | 1 answer | 0

1

answer

Question

how to assign variable for an array?
i have got cepstral coefficients as 13x1728. i want to store dem in a variable N1.how to do that?

bijna 10 jaar ago | 1 answer | 0

1

answer

Question

how to do clustering of MFCCs?
i was trying MFCC code from one website in which following parameters are defined. % Define variables Tw = 25; ...