Sensory Voice Extreme

[SounDuke]

Surfing the internet I found a sensory Voice recognizer module http://www.elettroshop.it/dettagli.asp?pid=375

Is it possible to "tell" the pic in the core  to go an octave up by simply saying in the mic in "UP"? I think voice recognizing technology could be of great help to musicians on the stage.. Think of a midibox controlled by voice :D Well I had this idea, I looked to the datasheet of the VE module (32 pins) but i'm totally unprepared to work on it, what do you think?

[SounDuke]

The VE module has 11 general purpose I/O.

Connecting these outputs to the DINx4 module should work as a vocal input (the program written in the flash memory of the VE module should be able to send 5V 0V output). Then with midi learn the PIC should recognize the command , not sent with a button or encoder, but with vocal command. I'm a newbie in electronics, so it  may be something impossible, if someone could help me in this effort, thanks

P.S. have a look there http://www.sensoryinc.com/ for more informations

[SounDuke]

The dinx4 I built is low active, the input pins when no buttons are connected stay at 5V. To send a signal to the pic I should send 5V to a digital input from the VE module in order to have 0V on that input and thereby 0V=on  right? I noticed that VE module is supplied by 3V. The problem is that I can supply only 3V from the VE module. Do you think it will work or i need absolutely 0V?

[Duggle]

hi,

I had a quick look.

It seems that both the VE module and Toolkit are required (thats 50 + 120 euro).

As far as interfacing, the VE module uses logic 0..3V while MBHP Din needs 0..5V input. This can be achieved by driving the base of an NPN transistor so that a logic 1 from the VE is like pushing a button on the Din.

I would be more concerned with the software required by VE. Do they have lots of demo programs that you can hack to suit your needs or do you have to go through a big learning curve just to get it running?

cheers

[SounDuke]

Well, since VE is programmable in C language, I should only train it with 11 different words and then write an app which activate the 3V output in the output assigned to the uttered word. I think the most difficult part for me is the integration to DINx4. What do you mean by "driving the base of an NPN transistor? I have to supply that transistor with another 5V supply?

[Duggle]

Hi,

The transistor provides an inverting and level shifting function.

The transistor connections: (pity I cant give a drawing)

1. emitter connected to common ground.

2.  base connected to resistor (any value from about 1k up to 47k ), other end of resistor connected to o/p port of VE.

3. collector connected to DIN port.

There are many signal NPN's that can do this job BC547 is a commonly available one.

cheers

[Duggle]

Also,

of course one transistor is required per line so if your designing 11 lines, a transisor array in an IC package will be neater.

There is a device that is fairly common that has 7 transistors per chip ULN2003 (often used to drive relays or lamps from logic pins) also called DS2003.

http://www.ece.osu.edu/~passino/DS2003.pdf

It also has 2.7k base resistor buit in.

cheers

[SounDuke]

Thanks for the advice, but there's something I can't catch: I have to supply the transistor array with another power supply of 5V right? So I'll have a power supply for the VE module (3V) and a power supply (5V) for the DS2003 right?

[Duggle]

The +V connection  is not necessary in this application. It is for the clamping diodes which are not needed here.

If it is connected, it should be to +5V (this is available from the Din power-in connection.).

cheers