About transcription using the API

About transcription using the API
I implemented it, but the output is not in Japanese.

What I did

  • Created Server-to-Server OAuth
    Scopes:

    • phone:read:list_call_logs:admin

    • phone:read:list_call_recordings:admin

    • phone:read:call_recording:admin

    • phone:read:call_log:admin

    • phone:read:call:admin

    • phone:read:recording_transcript:admin

    • phone:read:audio:admin

  • Obtained an access token

curl -s -X POST https://zoom.us/oauth/token....

  • Retrieved the list
curl -s https://api.zoom.us/v2/phone/recordings?...

  • Obtained the URL
"transcript_download_url": "https://zoom.us/v2/phone/recording_transcript/download/cc...9c",

  • Fetched the text (TRS_DL has the download URL set)
curl -L "$TRS_DL" -H "Authorization: Bearer $ACCESS_TOKEN" --output transcript.out

I am Japanese. The conversations are in Japanese, so I want to obtain the text in Japanese, but I’m getting it in English.
From what I’ve looked into, I found some articles suggesting that the API only recognizes English. It seems that even if the conversation is in Japanese, it is treated as English, resulting in an English transcript.

Is this true?
Is there any way to obtain it in Japanese?

I am a Japanese engineer.
I haven’t asked questions like this very often.
If I have used any inappropriate expressions, I apologize in advance.

I would appreciate your response.