- {
- Translator *t = unsmob_translator (scm_car (p));
- Performer *eng = dynamic_cast<Performer *> (t);
- if (eng && eng != info.origin_trans_)
- eng->acknowledge_audio_element (info);
- }
+ {
+ Translator *t = unsmob<Translator> (scm_car (p));
+ Performer *eng = dynamic_cast<Performer *> (t);
+ if (eng && eng != info.origin_trans_)
+ eng->acknowledge_audio_element (info);
+ }