speech-to-text

Is any software with speech to text, but not listening to the microphone, only the system sound. For example a webinar or other live audio stream from internet. It is available online as stream and it is live - this is the key. I can hear it but not have a recording file. As a output is enought...

Hey all! I'm helping my mom pick out a new laptop (i.e. telling her which one to buy) but am finding it challenging - her preferences & requirements are completely different than mine. Was hoping some of you folks might have recommendations so I can find her something she'll be happy with...