Zeroth Directive

Tianshi Bu Yuan asks you to perform audio scanning at 3 locations in Wuling City and gather different audio samples.

Bu Yuan
Endmin? Tianshi Ge never told me that you'll be helping us in person!
You
Audio frequencies and the Heart? How are they linked?
You
Your idea is very bold.
You
Leave it to us!
Bu Yuan
But this is most wonderful... Your presence is very reassuring. Everyone will be getting some nice tea from me.
You
Do such samples exist?
Perlica
Tianshi Bu, Ge briefed us. You're validating a new frequency with the Cardiograph.
Bu Yuan
Yes. Tianshi Zhuang assigned plenty of disciples to help me with audio scans and sample gathering.
Bu Yuan
Different things have very different audio frequencies. To improve Cardiograph output accuracy, we must narrow the sample scope.
Bu Yuan
If only we could find the perfect audio sample, and keep the Feranmut Heart running stably in perpetuity.
Bu Yuan
Oh, I really hope for a permanent solution. The old HAS standards ... are no longer usable.
Bu Yuan
Right now, none of the mentors who designed the Feranmut Heart are here, so I've got no one to discuss it with. A proxy did activate the Heart but no one can get a hold of her...
Perlica
Endfield can help with the sample collection. Tianshi Bu, mind if we use Techno-Protocol to adjust the Cardiograph?
Perlica
I did my own research when I learned about these instruments. Perhaps I can help you filter out the noise.
Bu Yuan
Music to my ears! Once you're done, try some audio scanning nearby to find the target.
Bu Yuan
This is the audio scanner of the cardiograph.
Bu Yuan
Now for the best locations... Let's go for these three: the Core AIC Area, the Technological Production Office, and the Tianshi Pillar Array.
Bu Yuan
My deductive algorithms came up with these locations. They're the closest to the standards and should be the easiest for collecting suitable audio samples...
Bu Yuan
The Feranmut Heart dissipates energy while operational. Such energy fluctuations can resonate with different audio frequencies.
Bu Yuan
Audio samples are analyzed by the Cardiograph, which then outputs a special sound frequency that positively influences the Heart's energy dissipation.