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Kcire L


Last seen: 9 meses hace |  Con actividad desde 2021

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Problem finding "valleys" in signal
Hello, I am using the findpeaks function to find the valleys in a signal, but it is not consistent and was wondering if there w...

11 meses hace | 3 respuestas | 0

3

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text in subplot with large font
Thanks for that answer. One thing, however, I am updating this supblot periodically and need to clear the respiratory rate for ...

alrededor de 1 año hace | 0

Pregunta


text in subplot with large font
Hello, I'm trying to add text in a subplot instead of a chart that displays respiratory rate. I am using the code below, how...

alrededor de 1 año hace | 1 respuesta | 0

1

respuesta

Pregunta


Output variables of different Class to csv or xls file.
Hello I have a few variables that I would like to output to a .csv or .xls file but am having difficulty accomplishing this. T...

alrededor de 1 año hace | 1 respuesta | 0

1

respuesta

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Findpeaks based on signal frequency
Hello, I am trying to use findpeaks on a signal that has a specific frequency component. This signal is repiratory audio, and ...

más de 1 año hace | 0 respuestas | 0

0

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Get column E based on transition in Column I
Hello, I have imported a spreadsheet into Matlab and am trying to look at where column I transitions from a 1 to a 0. When tha...

más de 1 año hace | 1 respuesta | 0

1

respuesta

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extract a section of a vector and plot
This is most likely a very trivial question but I am having difficulty getting the outcome I would like. I have created a time ...

más de 1 año hace | 1 respuesta | 0

1

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Detect signal clipping and remove
I'd like the areas highlighted in red to be removed (or zeroed out) but without altering the time domain. I am not able to use ...

más de 2 años hace | 0

Pregunta


Detect signal clipping and remove
Hi, I have a signal from a microphone that is listening for respiratory audio. When the test subject talks or moves too much, ...

más de 2 años hace | 3 respuestas | 0

3

respuestas

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Evaluating multiple MEMS microphones
Hello, I need to evaluate multiple MEMS microphones to weed out which one is the best for my application. I am looking for som...

casi 3 años hace | 0 respuestas | 0

0

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Looking for a Low Pass Filter ( < 100 Hz) that will work in Octave
Hello, I am looking for a low pass filter with a cutoff of 100Hz that will work in Octave. I have used the butter function, bu...

casi 3 años hace | 1 respuesta | 0

1

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Amplitude increase after filter
and how is this applied to the raw siganl? filtfilt(sos, g, raw)?

alrededor de 3 años hace | 0

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Amplitude increase after filter
I appreciate your assistance.. Unfortunately I don't have access to MATLAB until late next week and am currently using GNU Octav...

alrededor de 3 años hace | 0

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Find beginning and end points from a pulse
Hello, I am trying to determine the beginning and end points of a pulse like the plot below. I have seven of these pulses save...

alrededor de 3 años hace | 1 respuesta | 0

1

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Amplitude increase after filter
It isn't amplifying anymore but it is now reduced reduced amplitude. You say it shouldn't be off at all, but doesn't a filter ...

alrededor de 3 años hace | 0

Respondida
Amplitude increase after filter
Now it is off by about a factor of 10, but is it safe to assume that is the normal reduction from the filtering? step4 = filtfi...

alrededor de 3 años hace | 0

Pregunta


Amplitude increase after filter
Hello, I am using a moving average to filter and find the envelope of a raw signal. I am curious as to why the amplitude of th...

alrededor de 3 años hace | 5 respuestas | 0

5

respuestas

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Text output from script
Hello, I was wondering if there was a way to output a text report of certain values and variables from my matlab script. I am ...

alrededor de 3 años hace | 1 respuesta | 0

1

respuesta

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Label point on FFT plot
Hi, I have a plot of an FFT of a signal, I did a findpeak to find the pronounced frequencies, and now I would like to add a lab...

alrededor de 3 años hace | 1 respuesta | 0

1

respuesta

Pregunta


Use findpeaks on specific frequency range
Hello, I am trying to find the two peaks just under 1Hz in the plot attached. I wasn't sure how to use findpeaks to do this, b...

alrededor de 3 años hace | 1 respuesta | 0

1

respuesta

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Automate pulse duration measurements
Hi, I need to find the beggining and end of pulses like the image attached. With those points, I'd like to find the duration o...

alrededor de 3 años hace | 0 respuestas | 0

0

respuestas

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Estimate volume from extracted pulse
Hello, I have extracted a pulse from an audio signal and would like to see if I can determine volume from each pulse. Does any...

alrededor de 3 años hace | 1 respuesta | 0

1

respuesta