Couldn't find differences between synthesized voices of default, en, en_gb, northern_eng, scottish_eng

[sriharsha0806]

Hi all, Thanks for sharing the library. I am trying to synthesize different English voices using espeak. But the generated voices are all sounding the same. https://drive.google.com/file/d/1yrxrZfwcohzvA6O2isrLrA2EbsdzXUKZ/view?usp=sharing

I mean in terms of accent, voice of the person. May I know what am I doing wrong?

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