According to a JTBC exclusive report on June 26, the Supreme Prosecutors’ Office forensic science division analyzed the audio file submitted by Kim Se Eui, head of the controversial YouTube channel Garo Sero Institute.

The analysis reportedly found indications of editing and re-recording within the audio, raising doubts about its authenticity. Investigators noted disruptions in the audio signal as well as differences in frequency patterns between male and female voices recorded in the file.

Based on forensic findings, prosecutors suggested that the recording may not be a direct conversation.

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Instead, they raised the possibility that a female voice recorded on a separate device was played back and then re-recorded to simulate a real conversation. “It cannot be ruled out that a pre-recorded female voice was played and re-recorded to make it sound like an actual dialogue,” the forensic report reportedly stated. This has led investigators to question whether the audio was artificially constructed rather than captured in real time.

The controversy began in May when Kim Se Eui held a press conference claiming he had obtained an audio recording of Kim Sae Ron speaking with an acquaintance. The file allegedly included statements that Kim Sae Ron had been in a relationship with Kim Soo Hyun since middle school, causing a major online backlash and renewed debate over the actor.

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Kim Soo Hyun’s side immediately denied the allegations, stating that the audio appeared to be AI-generated or manipulated. Kim Se Eui, however, continued to insist the recording was authentic.

In addition to the audio controversy, prosecutors are reportedly examining whether profits were made from disseminating such content. The Seoul Central District Prosecutors’ Office is said to be tracking donation flows linked to accounts associated with Kim Se Seui as part of a broader investigation into alleged “cyber-racketeering” activities. South Korea’s Minister of Justice also recently emphasized strict enforcement against online rumor-driven crimes, stating that authorities will aggressively pursue cases involving financial exploitation.

Kim Se Eui is also currently facing trial for alleged stalking and intimidation against YouTuber Tzuyang. He reportedly failed to appear at his first court hearing, prompting warnings from the court regarding a potential arrest warrant.

Sources: Daum | 스포츠조선