Borland c++ builder draw waveform

How can i display the pcm wavform by using BCB.

Just like "Gold Wave" and "CoolEdit".

I have tried to use some vcl components(e.g teechart) but they store data in memory.

So when displaying huge data, the system will run out of memory.

I don'n know how to do it in a better way.Please give some help.


thanks for any help you can give

For reference -> Borland c++ builder draw waveform - C++

What do you mean by "huge data"?
You're not trying to display the waveform for 60+ minutes of a CD on say 1280 pixels of horizontal resolution are you?

I would expect that the controls you have would work just fine, if you did a bit of filtering work up front yourself.