The host of Canada's 91.5 The Beat struggled to keep her role as TikTok's text-to-speech voice a secret. Listeners began to point out the similarities when her voice appeared on the app. Are you aware of this? Listeners said it sounded like you.

She said in a video that she could tell you guys, the first time she had ever done that. I am the one who is it. Since it went live, the video has amassed more than 45 million hits.

Callaghan's voice, known as "Jessie" in the app, is a popular way for creators to convey their thoughts. All creators have to do is type whatever they want to say, and Callaghan's voice will read it line for line in a cheery manner.

It's been interesting to see how people use the voice over the last year and a half.

After her radio fans asked to use her voice in their projects, Callaghan realized she had a talent for voiceovers. There was a light bulb that went off. I'm like, 'Of course, why don't I do that?'. I would like to do that more. She started her own business.

Since launching the business, Callaghan has landed a number of voiceover jobs, including on e-learning content, YouTube videos, and commercials, but she says the biggest job she has ever done is with TikTok. It's different than anything I've done before. Working with TikTok has been great.

Users weren't sure how to react to Callaghan's voice first appearing on the platform While some were taken aback at the cheerfulness of the voice, others began testing the limits of what it can and can't say. Sometimes the text-to-speech tool doesn't know how to say a word or phrase. Callaghan created a TikTok video to prove that she knows how to say "lawl" correctly after the voice said "lol" as "lawl"

There were some negative reactions to the initial mix. I decided to sit back and see how people use it.

TikTok wasn't the first to use text-to-speech. Beverly Standing, the artist behind TikTok, claimed that the company used her voice without her permission. She objected to how users could make her voice say anything they wanted, including curse words and offensive language, which could cause her "irreparable harm" in the process. She reached a settlement with TikTok in September of last year.

The part of me that is in the app.

While users almost immediately started using Callaghan's voice to say silly things and some nasty remarks, she says she has a way of Separating herself from that kind of content.

I never said that but I understand that it is not me. If that is what people want to do on their own platform, that is fine, but it is not something I would ever say. I can separate that from that. That is just a person named Jessie. The part of me that lives in the app, but not the part that says all those things, is the content creators.

Callaghan's voice on TikTok has become so popular that it's become known among some non-TikTok users I can't remember the number of times I've heard the text-to-speech voice in videos sent to me by friends and family It is close to becoming the voice of TikTok like it is the voice of Apple.

The voice ofJessie isn't just for making videos. Text-to-speech can be used to help users with impaired vision understand a video. One of the most popular text-to-speech options on TikTok is called "Jessie", and it's the most lively of the bunch.

People are using the fact thatJessie is different as a reason to be cheerful. Thank you if you allowJessie to speak for you. I am glad to do it.