Update readme for KFest presentation URL

[xandark]

Hello! I just watched the KFest 2022 presentation and I was blown away by the audio quality you achieved!

1. Where can we hear about the progress of this project? Slack?
2. Yes, your readme should definitely link to your presentation: https://www.youtube.com/watch?v=o7zE7rPMarU

[xandark]

For example, did you manage to adapt your model to reflect the lower frequency ~480Hz ringing?

[KrisKennaway]

Thanks very much! I've updated the README to link to the video and audio, thanks for the reminder.

I haven't done much with this in the last year - I did think of an improved scheme for the audio player which should improve the quality (better waveform tracking during the periodic "slow path" end-of-TCP-buffer processing) but I didn't find the time to finish implementing it.

I haven't done more to explore the speaker modeling - my intuition is that it probably isn't worthwhile as the current modeling seems to be "good enough".

I know that some folks on the Apple II slack have investigated implementing the speaker model in emulators with (I think) mixed results - I haven't caught up on that in quite a while though.

I think it probably makes sense that it doesn't sound great in emulation - it's true of the Apple II speaker itself (especially if you amplify it). For emulation it's probably the case that using an "inaccurate" speaker model gives better results for typical Apple II audio.

If/when I do something more with this project Slack would be the place to watch, and/or enabling a watch for this github project