smfText at tick(0) does not appear in output
keithxemi opened this issue · 5 comments
.smfText('@TMary Was A Little Lame') // Karaoke player will recognize this track by the "@T" tag
.tick(0).smfText('\\Ma') // New verse starts with a backslash "\"
.tick(75).smfText('ry ')
.tick(25).smfText('was ')
Seems to works properly for me...
Can you please provide more details on how to reproduce the error?
When I use the Page source html from this https://jazz-soft.net/demo/WriteMidiFile.html and change the first tick from 100 to 0 as shown in my first comment, the text "Ma" is missing. I see this in both MuseScore and Cakewalk event list. Changing the tick to 1 makes it work.
.tick(0).smfText('\Ma') //text is missing
.tick(1).smfText('\Ma') //text appears
.tick(100).smfText('\Ma') // New verse starts with a backslash ""
I don't have MuseScore or Cakewalk.
For testing, I have added a new test at https://github.com/jazz-soft/test-midi-files
Here is the script that generates the midi file: https://github.com/jazz-soft/test-midi-files/blob/main/code/test-karaoke-kar.js
Here is the midi file contents (obtained by running node index midi/test-karaoke-kar.mid print)
SMF:
type: 1
ppqn: 100
tracks: 3
MTrk:
0: ff03 -- Sequence Name: Karaoke .KAR Test
0: ff02 -- Copyright: https://jazz-soft.net
0: ff01 -- Text: Testing Karaoke in .kar format.\n
0: ff51 -- Tempo: 90 bpm
0: ff2f -- End of Track
MTrk:
0: ff03 -- Sequence Name: Lyrics
0: ff01 -- Text: @TMary Was A Little Lame
0: ff01 -- Text: \Ma
75: ff01 -- Text: ry
100: ff01 -- Text: was
150: ff01 -- Text: a
200: ff01 -- Text: lit
250: ff01 -- Text: tle
300: ff01 -- Text: lame,
400: ff01 -- Text: /Lit
450: ff01 -- Text: tle
500: ff01 -- Text: lame,
600: ff01 -- Text: /Lit
650: ff01 -- Text: tle
700: ff01 -- Text: lame,
800: ff01 -- Text: /Ma
875: ff01 -- Text: ry
900: ff01 -- Text: was
950: ff01 -- Text: a
1000: ff01 -- Text: lit
1050: ff01 -- Text: tle
1100: ff01 -- Text: lame,
1150: ff01 -- Text: /A
1200: ff01 -- Text: lit
1250: ff01 -- Text: tle
1300: ff01 -- Text: lame
1350: ff01 -- Text: was
1400: ff01 -- Text: she!
1400: ff2f -- End of Track
MTrk:
0: c0 0b -- Program Change
0: 90 40 7f -- Note On
75: 80 40 40 -- Note Off
75: 90 3e 7f -- Note On
100: 80 3e 40 -- Note Off
100: 90 3c 7f -- Note On
150: 80 3c 40 -- Note Off
150: 90 3e 7f -- Note On
200: 80 3e 40 -- Note Off
200: 90 40 7f -- Note On
250: 80 40 40 -- Note Off
250: 90 40 7f -- Note On
300: 80 40 40 -- Note Off
300: 90 40 7f -- Note On
390: 80 40 40 -- Note Off
400: 90 3e 7f -- Note On
450: 80 3e 40 -- Note Off
450: 90 3e 7f -- Note On
500: 80 3e 40 -- Note Off
500: 90 3e 7f -- Note On
590: 80 3e 40 -- Note Off
600: 90 40 7f -- Note On
650: 80 40 40 -- Note Off
650: 90 43 7f -- Note On
700: 80 43 40 -- Note Off
700: 90 43 7f -- Note On
790: 80 43 40 -- Note Off
800: 90 40 7f -- Note On
875: 80 40 40 -- Note Off
875: 90 3e 7f -- Note On
900: 80 3e 40 -- Note Off
900: 90 3c 7f -- Note On
950: 80 3c 40 -- Note Off
950: 90 3e 7f -- Note On
1000: 80 3e 40 -- Note Off
1000: 90 40 7f -- Note On
1050: 80 40 40 -- Note Off
1050: 90 40 7f -- Note On
1100: 80 40 40 -- Note Off
1100: 90 40 7f -- Note On
1150: 80 40 40 -- Note Off
1175: 90 40 7f -- Note On
1200: 80 40 40 -- Note Off
1200: 90 3e 7f -- Note On
1250: 80 3e 40 -- Note Off
1250: 90 3e 7f -- Note On
1300: 80 3e 40 -- Note Off
1300: 90 40 7f -- Note On
1350: 80 40 40 -- Note Off
1350: 90 3e 7f -- Note On
1400: 80 3e 40 -- Note Off
1400: 90 3c 7f -- Note On
1500: 90 40 64 -- Note On
1500: 90 43 64 -- Note On
1500: 90 48 7f -- Note On
1590: 80 3c 40 -- Note Off
1590: 80 40 40 -- Note Off
1590: 80 43 40 -- Note Off
1590: 80 48 40 -- Note Off
1590: ff2f -- End of Track
As you can see, "\Ma" on the clock 0 IS there.
Perhaps, MuseScore/Cakewalk have a problem handling two Text metaevents on the same clock.
It appears that midi standards for lyrics are incomplete as noted in RP-017 "several companies have implemented lyric events in incompatible ways." I see the same behavior with vanBasco's Karaoke player. Replacing the @t text with ('') results in the desired display of the tick(1) text in all three of these applications and they do not appear to make use of the @t string. Of course it would be very unusual for Karaoke to actually place lyrics at this location, since it is expected to have an introduction to establish tempo and pitch before the vocal portion. I am very appreciative of your efforts to support midi in all applications with your well written and comprehensive software.
Thanks a lot, it was an interesting discussion!
And, btw, "tick(0)" does nothing, you can just remove it.