A couple of days ago Vogtinator released an audio player for the TI-Nspire.

The audio player utilizes the GPIO pins at the dock connector, allowing it to achieve a sample rate of 10kHz! This is already quite impressive, as you can see in the video below.



At the moment you can load WAV files of max 2MB, and there are still several bugs. But Vogtinator is still working on it, and he even said that higher sample rate are possible!
Not only is this a milestone in calculator audio history, but it's also the first time that the GPIO ports have been used. The GPIO ports don't only allow audio, but a great range of things are possible with them.

This is a little better than your lua one Jim
And also, it can have WAV files of any size (less than your available ram, of course), and it works, because I have a 15 minute song on mine.

The audio player utilizes the GPIO pins at the dock connector, allowing it to achieve a sample rate of 10kHz!

With the newest version you can load wav files with any samplerate you want.
The limit is the pwm-frequency (64 kHz), it starts to sound nasty then (but untested, 44,1 kHz works perfectly)

music should've been rickroll

Without the video it's boring

I think someone should try to build a custom dock for the nspire, that would allow people to use GPIO without soldering.

I think someone should try to build a custom dock for the nspire, that would allow people to use GPIO without soldering.

Yeah it was brought up a while ago, including the idea that someone could maybe sell them online. But the problem is that if TI changes the Dock port then the custom dock might no longer fit and a lot of money would be wasted. Another issue is the possible disappearing of that dock port one day (it's already gone from the TI-Nspire CM)