The Waveworn Phenomena is believed to alter matter, information, and energy by converting them into vibrating "frequencies", referred to as "Reverberations". This process has been observed through experimental evidence in the academic community.
The in-game description refers to Reverberations as if they were Frequencies, but:
From the original Chinese text:
In the academy, some people believe that when the Waveworn Phenomenon occurred, matter, information, and energy are all reduced to vibrating frequencies. The residual, ever-decaying frequency energy that remains afterward is called "reverberations."
When the First Lament occurred, it led to the manifestation of the Waveworn Phenomenon. This phenomenon transformed matter, information, and energy into frequencies. However, only the third, namely energy, by decaying, generates what scientists call Reverberation.
To fully understand what a Reverberation is, we must therefore understand the properties of energy, frequency and especially Remnant, its direct origin: Waveworn Residue 210
In many cases, Reverberations are present in the air Streams and they can be perceived by resonators that have the capabilities, such as Yangyang: Reverberations
When Reverberations merge with the chaotic frequencies of a Tacet Field they acquire the form of Tacet Discords, which inherit the characteristics and nature of the original Reverberation present in the place where the Tacet Field was formed.
This leads us to say that Reverberation is that phase in the life cycle of sound in which the decayed energy frequency contains within itself all the characteristics resulting from the merging of all the frequencies with which it has come into contact. This can lead to the Reverberation itself taking on a form.
As we mentioned, frequency-based energy has the intrinsic property of merging. The Remnant can merge with external frequencies and naturally alter reality. Reverberations can merge with the chaotic frequencies of Tacet Fields.
Through a natural process, an agglomeration of Remnant can give rise to Sonoro Spheres—true fields of sound (声之领域). While an agglomeration of Reverberations can give rise to small Laments.
When someone dies, their Reverberations linger. Normally, persistent Reverberations merge into the chaotic cacophony that generates new Tacet Discord, but in rare cases, in the mist, Reverberations can merge with the frequencies left behind by those who have passed away, creating the Golden Phantoms.
The external influence of a frequency conductor (Tuner) could disrupt the natural Reverberations process, causing Reverberations to merge together and form general integrated spaces (集成空间).
Depending on the type of Reverberation frequency, if tuned to a certain vibration, the massive merging of these frequencies seems to lead to the creation of a Threnodian.