synthesize_speech on fixed input text

[CloudApiStudy]

Hi,

I come from a research team which works on bugs in real-world applications.

I want to make a report about a few potential performance improvement in your project.

In file examples/google-voicekit-snippets-mark/cloudspeech_demo.py, synthesize_speech is called to generate audio files in each run. However, its input is a (or from a set of) fixed string. This behavior increases execution time and brings unnecessary service cost. A caching mechanism could help such situation, e.g. save audio file on disk at first API call, and re-use that file later.

Perhaps someone might be able to confirm if these seem reasonable. Also, if you need any help, I'm happy to provide some code snippet for fixing.

If you are not offended by it, we may include your response as a percentage number (e.g. xx% of applications faces xx problem, and xx% of them confirms it) in our research paper.

Thanks.