Mo Yunxiu's voice data extraction went very smoothly.
But it's very difficult to perform voice print identification!
When the voice print identification for Gu Yi'an was conducted previously, the part of the recording belonging to Gu Yi'an was extracted, and then Gu Yi'an was asked to say the same words with similar intonation.
Because voice print identification is most accurate between identical words and phrases. Otherwise, if the words and phrases are completely different, many elements would be different, making identification impossible.
But now, doing voice print identification for Mo Yunxiu was not that easy. Firstly, the sound data extracted from Bo Yi's phone, which belonged to Mo Yunxiu, was very everyday and mundane.
However, the words Mo Yunxiu spoke when she called the police to confess were calm but frantic, even with a hint of a manic tone.