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;;;                                                                       ;;
;;;                Centre for Speech Technology Research                  ;;
;;;                     University of Edinburgh, UK                       ;;
;;;                       Copyright (c) 1996,1997                         ;;
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;;;                         Author: Alan W Black
;;;                         Date:   December 1996
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;;;  An xwaves display function for utterances
;;;
;;;  Requires Xwaves to be running, saves labels etc and sends 
;;;  messages to Xwaves to display the utterance.
;;;
;;;  This can be a model for other display functions.
;;;

(define (display utt)
"(display utt)
Display an utterance's waveform, F0 and segment labels in Xwaves.
Xwaves must be running on the current machine, with a labeller for
this to work."
  (let ((tmpname (make_tmp_filename)))
    (utt.save.wave utt (string-append tmpname ".wav"))
    (utt.save.segs utt (string-append tmpname ".lab"))
    (utt.save.f0 utt (string-append tmpname ".f0"))
    (system (format nil "send_xwaves make file %s name %s height 150"
		    (string-append tmpname ".f0") tmpname))
    (system (format nil "send_xwaves make name %s file %s height 200"
		    tmpname (string-append tmpname ".wav")))
    (system (format nil "send_xwaves send make file %s name %s color 125"
		    (string-append tmpname ".lab") tmpname))
    (system (format nil "send_xwaves send activate name %s fields 1"
		    tmpname))
    (system (format nil "send_xwaves %s align file %s"
		    tmpname (string-append tmpname ".wav"))))
 )

(provide 'display)