Prototype of audio for help to people that have auditory disability
mauricio
Posts: 4
Cordial greetings
I am Mauricio Quitama of Ecuador, student of electronic and control, I am carrying out a project that it is a prototype of audio for help to
people that have auditory disability.
To the person with disability is made an audiogram to know in that frequencies and width has problem, by means of the demo board
propeller start kit the programming is made to amplify in this frequencies, like it is small the person will take it in the chest, she also
has microphone and exit of audio in which will be used headsets.
But or less as an equalizador of the voice that he/she enters to the demo board and it leaves amplified where has problems all this in
real time.
Favor if they can help me with information and suggestions.
Thank you
I am Mauricio Quitama of Ecuador, student of electronic and control, I am carrying out a project that it is a prototype of audio for help to
people that have auditory disability.
To the person with disability is made an audiogram to know in that frequencies and width has problem, by means of the demo board
propeller start kit the programming is made to amplify in this frequencies, like it is small the person will take it in the chest, she also
has microphone and exit of audio in which will be used headsets.
But or less as an equalizador of the voice that he/she enters to the demo board and it leaves amplified where has problems all this in
real time.
Favor if they can help me with information and suggestions.
Thank you
Comments
Welcome to the Parallax forum!
I believe that you will be able to do what you want with a PASM-based FIR (finite-impulse-response) filter. Here's a link to a thread I started about an online service that writes the PASM code for you, given the filter coefficients obtained elsewhere:
If you use the TFilter online service mentioned there, you can craft the passband of your filter to fit the needs of the person with the hearing disability. Then plug the coefficients it computes into my online service and download the PASM code. You will need to write some code to feed the microphone ADC data to the FIR filter and some more code to feed the output of the FIR filter to the headphones.
-Phil
Please you can help me where I can find information about the algorithms used for digital filters this link http://forums.parallax.com/showthread.php?133173
Thanks
This is exactly how my hearing aids work....