Support

If you have a problem or need to report a bug please email : support@dsprobotics.com

There are 3 sections to this support area:

DOWNLOADS: access to product manuals, support files and drivers

HELP & INFORMATION: tutorials and example files for learning or finding pre-made modules for your projects

USER FORUMS: meet with other users and exchange ideas, you can also get help and assistance here

FlowStone Basic Concepts

Step-by-step guides on how to use the software

FlowStone Basic Concepts

Postby admin » Wed Jun 23, 2010 12:55 pm

EXAMPLE: Imagine wanting to do this simple programming process: Take an analog input signal (sound) from a soundcard and change the volume with a slider then output it at the new level. Then make a custom GUI and your first .exe file!

In FlowStone this is easy; here is a mono example (left channel only):
Image
Simple Voltage Controlled Amplifier (VCA) using the PC Soundcard

From left to right we have an external input module (ASIO in)that auto detects my Soundcards, this then connects (Left Channel) to a VCA module (Voltage Controlled Amplifier), we also have a graphical slider that sends a slider value through a de-zipper (to smooth out the slider steps) into the control input of the VCA. The output then goes to our output module (ASIO out)which has my soundcard outputs on it. Thatís it! We can move the slider with the mouse and the volume changes!

Now lets make it stereo (Left and Right):
Image
Now a Stereo VCA device (Left and right)

We have just added another VCA and wired it up to the Right channel of my Soundcard. Done!

So what's in the VCA module?
Image
Inside the VCA module - A simple Audio Multiplier

Like most of the FlowStone Modules that are made up of other smaller modules or primitives to make complex high level modules that you can edit freely!

OK so now we want to make a custom General User Interface (GUI):
Image
Select All and click make module

We first need to make our design into a high level module, so we select everything and click the make module button:
Image
Click 'G' then 'exe'

Now we have our complete module we just need to tell FlowStone that we want to make the module graphical by clicking the G button (Step 1). That it we now have our very own GUI!

Now the difficult step, how to deploy our application and make a stand alone program (.exe)? Just Click the EXE button (Step 2) fillout the name and press ok.
Image
Name your project and make an EXE file!

Image
Finished Standalone EXE file

Imagine this in a normal computer language this would take a lot of specialist programming knowledge about the language you were using and a lot of experience. In FlowStone it only took less than 5 minutes!

Note: This example uses FlowStone Pro and the ASIO Audio I/O , you could make the same project using FlowStone FREE and use the Direct Sound (DS) Audio I/O. However you will need FlowStone Pro or FlowStone Enterprise in order to make stand alone EXE files.
User avatar
admin
Site Admin
 
Posts: 232
Joined: Tue May 11, 2010 6:30 pm

Return to Tutorials

Who is online

Users browsing this forum: No registered users and 1 guest