Minecart sound no longer increases in pitch the longer the minecart is rolling

In version 1.6.4 and before, the sound of minecarts increases in pitch the longer the minecart rolls.

Expected behaviour

When a minecart starts rolling, the sound is slowed down, and the longer it rolls for, the more the sound speeds up.

Demonstration of this behaviour in 1.6.4, the last version where this was happening:
How it should sounds 1.6.4.mp4

Observed behaviour

The minecart always has the same sound, no matter its speed

Video Example (1.19.3):
1.19.3 How it sound now.mp4

Steps to reproduce

1. Use snapshot 13w42a or newer (1.19.3)
2. Place minecart
3. Push it and listen