How do you say "the audio says..."


Because I suspect 音声は〇〇と言う is wrong.




First, 言う/言います usually sounds like it's about something habitual or something
in the future. In this case, you have to use the progressive form and say
言っている or 言っています (see [this](https://japanese.stackexchange.com/q/6538/5010)).

Most of the time, you can simply omit the subject and say 〇〇と言っています.
Alternatively, you can change the subject and say ～さんは〇〇と言っています (if you know
the speaker) or この人は〇〇と言っています (if you don't know who is speaking).

If you want to use 音声:

  * この音声は〇〇と言っています: This is not wrong, but it sounds like the focus is the deciphering/transcribing (e.g., of a noisy audio, a foreign language, a single word) rather than the message itself.
  * この音声によれば、〇〇と言っています: This is natural if the message in the audio is important (e.g., an anonymous political propaganda). ～によれば means "according to ～".

