Ongoing issues with custom sound fonts on NXTs

[jramboz]

See jramboz/py2saber#2

[jramboz]

Seems like there's definitely something on the firmware side that needs to be updated to fully address this issue. I know LdL is working on it.

[jramboz]

Based on a tip from Mitriax on Discord, it seems that custom sound fonts work as long as the lengths of sound files are less than:

• Hum: 20 seconds
• Smoothswings: 6 seconds
• Poweron: 3 seconds

I'm doing some more testing, but so far at least a few sound fonts that formerly locked up the NXT appear to be working stably.

[mrseeker]

I have a power-on sound that is 10sec long, and that worked?

[jramboz]

Yeah. These numbers definitely are not perfect. I have some sound fonts that still cause problems even with these values, and others that are longer and work fine. So far, I haven't been able to figure out a pattern. But these settings seem to work for the majority of sound fonts.

[mrseeker]

So, from what I have witnessed, the power-on and power-off sound fonts really depend on the fact that they are interposed on each other. So, the hum and power-on will play at the same time, however if the power-on is longer than the hum, the power-on will play first, followed by the hum being added to the power-up, making it so that they both finish at the same time. The power-off works in a similar way, but the light will stop at the same time the power-off starts playing. I also found out that I can have a power-off for as long as I want, as long as it ends with a sound. You need to export your sounds with Mono PCM 16Bit 44100hz (use audacity export).