The microphone is turned off
Some camgirls mute their microphones, making it difficult to determine whether their webcam video is live or pre-recorded. Additionally, if you can’t see the camgirl’s hands, it’s impossible to tell if she’s typing on her keyboard or not. Some scammers replace ambient sound of the room with background music. It is just a way to fool visitors and prevent the room to have no audio at all when you enter.
To confirm if she is live, ask her to stand up, clap her hands or do anything easy that would prove she is real.
It’s possible that she has muted her microphone because she’s not proficient in English and is using a translation website. An easy way to check if it’s a recording is by asking her to stand up via text message.
Regardless of her English proficiency, there’s no reason she can’t unmute her microphone.
Background music may replace microphone sound:
Occasionally, you might hear music instead of the room’s ambient sound, which could also suggest that the video is pre-recorded.
Camgirl website where we’ve never encountered fake live streamings:
I think the website team of Livejasmin is very efficient at looking after live streamings, I have never spotted muted mic or background music in Livejasmin chatrooms.