Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to avoid robotic voice text to speech synthesis [title] Try someone who can read. [step] .. the best solution. [title] Avoid keeping the default voices shipped with operating systems.

Ending1: [title] Ask them to recite sentences without pauses. [title] Find out who the key characters are and their tone of voice. Ending2: [title] Double check the time every time you are typing (or typing it on an iphone). [step] This is important for example, a computer with an internal clock of 25-thirty minutes would probably have trouble snoozing. Ending3: [step] They sound sadly bulky and impersonal when compared to your familiarity with human speech. But in cases we have the option of saying " hi " and literally replying to them or carefully training with the software. Ending4: [step] For example, microsoft sam on windows xp, is not very natural-sounding. Actually, you need to install more high-quality voices.

Answer format: ending1/ending2/ending3/ending4