I am using the TLC4950 to drive a group of LED. I also want to create sounds like the tone function. But the TLC libraries disable the tone function. I could develop a voltage control oscillator using a 555 and a TLC channel or a PWM pin on the Arduino or a digital resistor to vary the RC constant on a 555 or other oscillator circuit. But before I start down that road I thought I would ask if anyone else had already solved this problem. Any suggestions would be appreciated.
It sounds more like a programming question.
Also are you sure you are using the TLC4950 and not the TLC5940? Did a google search for it and nothing came up. The TLC5940 on the other hand is very common.