Audio waveform missing when sending voice notes via Evolution API, impacting user experience and perception.

[admdanielspalma]

Welcome!

• Yes, I have searched for similar issues on GitHub and found none.

What did you do?

When using the Evolution API to send audio messages, I noticed that the audio messages previously displayed a waveform graphic in the player. However, now the graphic is no longer visible.

This issue was observed under the following context:

• Audio messages sent through the Evolution API
• Messages tested under the same configurations and expected behavior as before
• The absence of the waveform significantly impacts the user experience, making the audio feel less natural and potentially causing end users to perceive the message as a mass broadcast rather than a personalized voice note. This perception negatively affects marketing efforts and reduces the effectiveness of the campaign.

What did you expect?

I expected the audio player to display the waveform graphic (as shown in earlier versions) for voice notes sent via the Evolution API.

This visual cue is essential to create a sense of authenticity and personalization for the recipient. The waveform graphic helps make the voice note feel more natural and less like an automated or mass-distributed message. Maintaining this user experience is critical for effective marketing and engagement.

What did you observe instead of what you expected?

Instead of the waveform graphic, the audio messages now appear with a plain audio player interface, lacking the visual waveform.

This absence reduces the natural look and feel of the message, making it seem more like a mass-distributed or generic message. Clients who receive these messages may interpret them as less personal, which can undermine trust and engagement in marketing campaigns.

Screenshots/Videos

Look the difference

Which version of the API are you using?

2.2.0 (latest)

What is your environment?

Linux

Other environment specifications

Ubuntu Server with Docker install (swarm mode)

If applicable, paste the log output

No response

Additional Notes

The absence of the waveform graphic impacts the user experience and reduces the effectiveness of marketing campaigns that rely on a personal touch. Specifically:

Perceived authenticity: Clients may feel the message is mass-produced, reducing its impact.
Trust and engagement: Personalized messages typically build stronger relationships, and the lack of a natural look can harm this effort.