Sorry about the wooly title, but I couldn't think of a concise way to describe this question.
I have a ZX Spectrum emulator project which can visualise the output from the sound chip example here. I think it's an accurate depiction, but I'm outputting the waves just as they are generated in real time from left to right. This makes the waves jump around a lot in the visualisation. Whereas other visualisations I've seen and in oscilloscopes for example, the wave stay in place.
I guess I'd like to achieve an effect similar to this.
Could anyone point me at the terminology I need or any resources that I could look for for algorithms that would make the visualisation more stable?
Thanks in advance,
Steve.