Vibrato sounds bad

[kirnuarp]

Regarding: #1822
I think this isn't about taste. When you go to https://next.alphatab.net/ and listen to the demo song the vibrato sounds like someone's cat was tortured right from the first bar.
This doesn't give good image about the product.
The developer suggested to set player.vibrato settings which I did and got fairly good results with these settings:
vibrato: {
noteSlightAmplitude: 0.6,
noteWideAmplitude: 0.6,
noteSlightLength: 405,
}
The problem now is I don't know what the number 405 represents in relation to tempo and the note length.

I would suggest the default vibrato values were changed to more musical.

[Danielku15]

There are many factors around vibratos and one of them is taste. The way it is exactly played depends on many factors and there is no clear definition on how fast/slow wide/slight a vibrato is played.

The vibrato is simply adjusting the pitch of the note in a wave (sine wave adjusting the note up and down). The settings there are configuring the waveform: how big the amplitude is in semitones and the wave length is in midi ticks (the time used internally in midi to time events).

These settings might be closer to how GP8 is playing for the different vibratos (when using midi playback). But as their MIDI export doesn't include vibratos it's hard to get the real numbers:

vibrato: {
    noteWideLength: 240,
    noteWideAmplitude: 1,

    noteSlightLength: 360,
    noteSlightAmplitude: 0.5,

    beatWideLength: 480,
    beatWideAmplitude: 2,

    beatSlightLength: 480,
    beatSlightAmplitude: 2
}