As it stands, voice notes in WhatsApp just show a “Play” button along with a progression bar. Admittedly there’s really nothing wrong with the current design, but the introduction of waveforms is a nice touch. This means that you can sort of see the peaks in the audio levels in the message itself.
As WABetaInfo notes, this isn’t the first time WhatsApp has tested out this feature. The company was testing out the feature earlier this year, but later disabled it, but now it looks like they’ve brought it back. The website also points out that this feature might not work all the time either as depending on the version of WhatsApp a user uses, those coming from older builds will not see these waveforms and the messages they send will not include it either.
We’re not sure how useful such a feature is and how functional it will be, but if you think you can appreciate seeing the waveforms in the voice messages you receive on WhatsApp, this could be something to look forward to once the feature has been released to the public.