SYLT frame not detected/parsed

Support
1

Issue description:

While testing different variations of lyrics I found that Symfonium does not display the embedded SYLT lyrics for a test file.

Logs:

Upload description: 655321 SYLT not parsed

Additional information:

 
I’ve zipped up the song and a log of me starting to play it. MusicBee shows it in the properties and displays it while playing, ImHex also shows that the frame is present.
 

Reproduction steps:

 

  1. Copy mp3 file with SYLT frame to the internal storage of the smartphone.
  2. Sync the local device provider in Symfonium.
  3. Play the track in question.
     

Media provider:

Local Device

Screenshots:

 

Screenshot 1
Screenshot 11364×378 80.7 KB
 
Screenshot 2
Screenshot 2528×550 192 KB
   

2

Yes SYLT frame have a few encoding issues + frame sync is not possible from where I handle this, so I do not support it.

3

Playing with the file you sent can you confirm it’s not correctly synced?

Or can you show the timestamps in musicbee to compare ?

4

That would surprise me as I’ve synced it myself and it is in sync when played in MusicBee. Here’s how MusicBee displays it internally:

grafik
grafik259×652 10.6 KB

This was the source .lrc file I embedded as SYLT:

[0:20.928]Come find me in discomfort
[0:26.612]Light me up and put me out
[0:33.040]Can you read my mind

[0:37.795]Let me in on all of you
[0:43.365]It can't be this hard all the time
[0:49.915]Can't forget the truth

[0:54.660]'Cause I saw you
[0:59.270]Light as grass
[1:03.650]Floating high above the atmosphere
[1:09.110]And I saw you
[1:13.250]Falling fast
[1:17.870]Quietly hiding from reality

[1:27.463]Hold me up and tear me down
[1:32.923]I lost track of the certainties
[1:39.286]Evaporate this calm

[1:44.256]Never knew the doubt I feel
[1:49.776]You'd never understand it's pain
[1:56.285]Do you know me well

[2:00.638]'Cause I saw you
[2:05.078]Light as grass
[2:09.578]Floating high above the atmosphere
[2:14.978]And I saw you
[2:19.598]Falling fast
[2:24.098]Quietly hiding from reality

[2:29.466]'Cause I am me and you are you
[2:34.686]Well, there's a greatness in our view
[2:40.232]I saw the future in your eyes
[2:45.932]Don't confuse the thoughts inside

[2:52.326]'Cause I saw you
[3:02.766](I saw you, I saw you)
[3:04.986](I saw you, I saw you)
[3:09.656]And I saw you
[3:20.216](I saw you, I saw you)
[3:22.376](I saw you, I saw you)
[3:27.404]I saw you
[3:29.444](I saw you, I saw you)
[3:31.004](I saw you, I saw you)
[3:37.868](I saw you, I saw you)
[3:39.908](I saw you)

And this is the line of my script that decides the encoding used with mutagen.

audio.tags.setall("SYLT", [SYLT(encoding=Encoding.UTF8, lang=language, format=2, type=1, text=sylt_lyrics)])

The id3v2.3 spec explains that format 2 means time in ms and type 1 means lyrics.

I’ve never encountered an mp3 file that used frame sync in SYLT. Only time in ms + text.

5

Yes chatGPT missread the specs :stuck_out_tongue:

Will add support for the common cases.

1 Like
6

Lovely.
Btw. which lyrics does Symfonium choose if a file has multiple sources?
Let’s say an .mp3 file has a SYLT frame, a TXXX LYRICS tag and an external .lrc file?

I think either the .lrc file or the LYRICS tag should be prefered as they support all tags, empty lines and multi-lines while the SYLT frame only supports the language tag, a description (that no program I know uses/sets) and time in ms + text pairs.

7

It’s random, it tries to take the worse :stuck_out_tongue:

It tries to find a synced lyrics and with the addition of the sylt if there’s multiple will take the one with the most entries.

8

Since the latest beta finally made it onto my phone I’ve tested this.
All combinations of SYLT, LYRICS and .lrc work in the local provider now.
Good job!