Is this happening?
Auto-captions miss words. Names and key terms get mangled. Quiet speakers create bad transcripts. You spend time correcting captions.
How the problem shows up
Caption engines struggle when the mic feed is low or noisy. If you boost gain to help, you add artifacts that can confuse speech recognition.
The problem
Captions need clean speech. Noise and hot gain reduce accuracy.
The fix
Strengthen the mic signal so captions get a clearer feed without extreme gain.
Mic → Cloudlifter → Interface/Mixer (phantom power +48V ON) → Recording/Captions
Note: Cloudlifters work with passive dynamic and passive ribbon microphones. They are not compatible with condenser microphones that require phantom power through their XLR connection.
Choose your Cloudlifter
If you want the simplest setup: use the CL-25 Mini. It's the quickest "one connection" way to add clean gain. With the CL-25 Mini, it plugs directly onto the mic's XLR output, and your single XLR cable connects from the CL-25 Mini to the interface or mixer.
If you already own a Cloudlifter: the CL-1, CL-2, and CL-4 do the same job (clean mic activation). They use the standard inline connection in your mic chain.
A quick example
A teacher's recordings had captions that were "close but wrong." With a Cloudlifter and lower gain, captions improved and correction time dropped.
FAQs
Will this guarantee perfect captions? No, but it improves the input quality captions rely on.
Where does it go? Mic → Cloudlifter → interface/mixer (phantom power +48V ON).
Does my interface or mixer need to supply phantom power? Yes. The Cloudlifter requires +48V phantom power from your interface or mixer to operate. Enable phantom power on the channel the Cloudlifter is plugged into. The Cloudlifter uses that phantom power to provide up to +25dB of clean gain — without it, no signal passes.
Quick takeaway
If your class captions are unreliable, a Cloudlifter helps you get more mic and less preamp—cleaner audio for better transcripts.
