We made Oscilloscope for After Effects
Hello! We just release Oscilloscope plugin which emulates oscilloscope. You can use 3 types of signal, combined or separately: Picture, Audio and Path. All signals are converted to 2-channel waveform signal and are used for oscilloscope drawing. We also emulate beam and phosphor behavior as it is in real oscilloscope screen. And all of that for reasonable price $30! (Now it on sale for $22).
Please check it on https://aescripts.com/oscilloscope/
Thank you! Please share your opinion or ask question freely. We have a lot of ideas and plans for updates, so you opinion is also important.