2007:Score File Format

$Id: score-file-format.txt,v 1.2 2007/06/25 15:35:06 schwarz Exp $

Score File Format

MIREX text score file format = alignment reference format! = alignment output!

one line per note, tempo change, or signature change

notes are time-ordered, tempo or signature changes can come at any place

NOTE EVENTS

template:

event-id onset-position onset-ms type pitch interval duration-beat duration-ms cue-num stream-id

example:

1 1	 0	note	72	0	2	4000	1	0
2 3+1/4	 4500	note	60	0	0+1/4	500	2	0	
3 3+3/4	 5000	note	58	0	0+1/2	1000	3	0	
4 3+3/4	 5000	note	48	0	0+1/2	1000	0	0	

columns for note events:

1. event ID [int > 1]
2. event onset position [measure+rational] (ex. 42+1/4, 28+3/7)
3. event onset clock time [ms] (must be consistent with the onset position)
4. event type [symbol: note, trill, tremolo, ...] (for tempo and signature, see below)
5. event pitch [float MIDI note number]
6. event interval [float halftones] (0 for non-trill)
7. event duration [measure+rational]
8. event duration [ms]
9. cue number [int > 0, 0 = no cue]
10. stream ID [int]

TEMPO CHANGES

template:

0 onset-position onset-ms tempo tempo - - - - stream-id

example:

0 1	0	tempo	120	-	-	-	-	0

columns for tempo changes:

1. event ID [constant int = 0]
2. event onset position [measure+rational] (ex. 42+1/4, 28+3/7)
3. event onset clock time [ms] (must be consistent with the onset position)
4. event type [constant symbol = tempo]
5. tempo [float bpm]
6. unused
7. unused
8. unused
9. unused
10. stream ID [int]

SIGNATURE CHANGES

template:

0 onset-position onset-ms signature numerator denominator - - - stream-id

example:

0 1	0	signature	4	4	-	-	-	0

columns for signature changes:

1. event ID [constant int = 0]
2. event onset position [measure+rational] (ex. 42+1/4, 28+3/7)
3. event onset clock time [ms] (must be consistent with the onset position)
4. event type [constant symbol = signature]
5. signature numerator [int]
6. signature denominator [int]
7. unused
8. unused
9. unused
10. stream ID [int]

Evaluation Metrics

times:

• t_a reference alignment time
• t_r reporting time
• t_e estimated time

measures:

• d_l = t_r - t_e system latency (between reporting and estimation)
• d_o = t_a - t_r offset or lag between reporting time and reference
• d_e = t_a - t_e error between estimation time and reference