on speech recognizance and authentication

we doing project on speech based commend wheel chair.we done speech recognizance and authentication .Now we send octat commend to port to rotate and move the wheel chair .we are beginners in matlab. our code..

if DecisionValue == 1
output = '0 0 1';
msgbox('authorized forward');

likewise 6 commends .how to send our output to parallel port ,we doing project on windows .

please anyone help us .

[saad aslam]

Mr vageesh kulkarni my group is also working on similar project"Voice recognition and authentication based home automation" as you have said you have done working on voice recognition and authentication can you pls provide me the code?I will be thankful to you.

Answer 1

[Walter Roberson]

On MS Windows Vista and later, it is effectively not possible to send directly to a parallel port. With MS Windows XP, it is just difficult, not impossible. Windows 98 was the last version in which it was easy.

For all versions of MATLAB for a number of years now, there have been three basic work-arounds:

1. Use a serial to parallel converter device. This has fallen out of favour as they have mostly stopped installing serial ports on computers (but you can still get serial cards for desktops.)
2. Use a USB-based parallel port that you communicate with as if it a serial port. This has some trade-offs that make it usable for some low-demand situations, but not for higher demand devices
3. Use a data acquisition device. This can be used both for the digital lines of a parallel port and for the analog lines (because parallel ports have a number of important analog lines.)

More recently, another work-around has become common:

• connect to an arduino or Raspberry Pi and transfer the data to them and have them write to a parallel port.

(Amazing how things go out of fashion and back into fashion in computing. In the 60s and 70s, programmable I/O cards were common for mainframe computers, but they fell out of favour due to the CPU overheads required, replaced by special purpose ICs and Direct Memory Access (DMA))

[vageesh kulkarni]

sir ,if possible please provide us ,code to send our output to serial port . Thanks for your response.

[Walter Roberson]

There is an example in the File Exchange here. You probably want to look over the Serial_GUI_noICT function there.

Answer 2

[saad aslam]

Mr vageesh kulkarni my group is also working on similar project"Voice recognition and authentication based home automation" as you have said you have done working on voice recognition and authentication can you pls provide me the code?I will be thankful to you.