"Create long-form audio" generates two files in the cloud bucket.

Performing a POST to the API
https://texttospeech.googleapis.com/v1beta1/projects/XXXX/locations/global:synthesizeLongAudio

It is an endpoint to generate an audio file from text.

It generates two files in the cloud of the same size. One looks like a temporary or backup file (xxxxx_bucket/file2_name.wav_1693492156934030543_0000.wav).

Is this normal?

I have requested a simple text on my replication, But produces only one file only ( I have followed the steps here for my replication ) One possible causes might be there is parameter in your request body(for my replication I used Json request body) when you are posting this to the api.

Does the extra file is the same exact audio for the request?