what would be a good way to go about processing an acapella that was extracted through an AI acapella extractor (aka it is very low quality)?
user
I assume you are refering to a tool for voice isolation and instrument removal?  AI audio-enhancers would be the best way to go about processing the singing voices to increase their quality, short of having someone sing them or an expert rework the audio.  However, there are many limitations to enhancing music using any post-processing methods.  Thus, I would suggest using higher quality vocal extraction tools or ideally have someone sing the acapella for you.

You can find a vocal extraction tool that is considered to be high-quality based on internet reviews and highly rated on TrustPilot at: https://www.lalal.ai/
You can find singing services at the following website: https://www.fiverr.com/categories/music-audio/singers-vocalists

I hope you found that helpful.  Is there anything else I can do for you?
assistant
Is there no free alternative?
user
Processing a low-quality acapella extracted through an AI acapella extractor can be a challenging task, but there are a few things you can try to improve the quality of the audio with a free DAW and free audio plugins:

EQ: Use an equalizer to remove unwanted frequencies that may be present in the acapella, such as background noise or hum.

Compression: Apply compression to even out the volume of the acapella, which can help bring out more details in the vocals.

Noise reduction: Use a noise reduction plugin or tool to remove background noise and hiss from the acapella.

Reverb: Add a small amount of reverb to the acapella to help it sit better in a mix and give it a more natural sound.

Harmonic Excitement: Use harmonic excitement plugins like exciter or saturation to add harmonics to the vocal that are lost in the extraction process.

Volume automation: Use volume automation to even out the levels in the acapella and remove any sudden jumps or drops in volume.

Pitch correction: Use pitch correction tools to correct any pitch issues in the vocals.

It's important to keep in mind that no amount of processing can fully restore a low-quality acapella, but these techniques can help improve its sound quality and make it more usable in a mix. It may also be helpful to experiment with different processing techniques to see what works best for your particular acapella.
assistant
Do you have any recommendations for specific tools I can use to isolate the voice from all other noise or background music.  It needs to be high quality so that I can use it as a training data set for a text-to-voice generation tool I'd like to create.
user