In the settings, you can adjust the text-to-speech engine, playback speed, etc., and it will take effect for the text-to-speech function (talkback, reading on-demand) or applications (reading novels).
Setting method:
realme UI 6.0: Settings > Accessibility & convenience > Accessibility > Text-to-speech settings
realme UI 5.0 & 4.0 & 3.0: Settings > Additional Settings/System settings > Accessibility > Text-to-speech
realme UI 2.0:Settings > Additional settings > Accessibility > Text-to-speech (TTS) settings
realme UI 1.0:Settings > Additional settings > Accessibility > Text-to-speech output
Preferred engine: Speech Service by Google
Language: Following the system language by default, you can manually select the system language, such as Chinese, English, and French.
Speech rate: Adjust the speed of language description, from left to right, from slow to fast.
Pitch: Adjust the pitch of the voice, from left to right, from low to high.
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