Changes

* Mind that completion of an allophone doesn't mute the voice generator (it'll keep repeating the end of the allophone until receiving a new allophone). To mute the voice generator, output a short pause (eg. PA1) after your last allophone. * The above timings are taken as-is from the SP0256-AL2 data sheet (unlike as on real hardware, these values are rounded to 10ms boundaries, and aside from that inaccuracy, some timing values may be wrong).