Обновился эмулятор ZX Spectrum для Android. Изменения:
- fixed loading of files with spaces in their names; 
- MIDI recordings are now named after original program files;
- fixed audio latency controls. Try setting your latency to 100ms;
- fixed MIDI soundtrack logging;
- reduced minimal audio latency.
Источник: 
http://fms.komkon.org/Speccy/