This is a follow up to this question.
If I record my own work (original texts, phrases, sentences, etc.) using Amazon's Polly, who owns the copyright on those recordings?
In the AWS TOS section 65.5, they say:
The distribution of audio output files created by Amazon Polly may require that you obtain license rights from third-party owners or licensors of content that you include in your text inputs into Amazon Polly. You are solely responsible for obtaining these licenses and paying any necessary royalties or fees.
From this excerpt, should I infer that I'm the owner of the copyright on the audio files, if I own the content used as input?