Once over of text to speech circuit

I’ve been working in my spare time on a device that uses an Epson S1V30120F01A100 text to speech driver to speak. The problem is that the audio quality isn’t fantastic.
If you have any experience working with audio circuits I’d love to hear from you to see if there’s anything I can do to improve it’s quality before I make another order for boards.
I’m happy to pay for the help.

Why not have a chat at electronics night tonight (online) @emuboy has quite some audio experience I believe

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Hey Dermot.

I’m afraid I’m not gonna be able to make it at 7, I’ve got an evening thing.