"Tiu estas aparta voĉo, ĉu ne?"

Translation: That is a particular voice, isn't it?

[salivanto]

My perspective is a little different from those who have already commented. "Tiu" is the better choice in this sentence. The iu-correlatives are used when mentioning one item (or a comparatively small number of items) out of a closed set. "Tiu estas aparta voĉo" calls to mind a discussion about a number of voices under consideration - and pointing out one as standing out somehow.

With "tio" (tio estas aparta voĉo, ĉu ne") no clear context springs to mind. "Tio" generally answers the question "Kio" which is in turn generally used when you don't know what something is. So with "tio" we imagine someone asking "what is that" and the answer being "that is a particular voice, isn't it?" It's a very odd thing to say, at the very least.

[nim_numb]

why "tiu" and not "tio"?

[Mutusen]

This sentence could also work with tio. Think of tiu as "that one."

[nim_numb]

Thanks.:-)

[cd1]

if only Duolingo accepted "that one" here...

[tommylinsley]

Actually, "that one" would make more sense. The sentence does use the word "particular"!

[salivanto]

I disagree. See the longer of my other replies in this thread.

[ChuckBaggett]

What does this mean? Seem like it might be supposed to be "That is a peculiar voice, isn't it?".

[tommylinsley]

Per La Vortaro: stranga (strang·a) = strange, odd, peculiar
aparta (apart·a) = separate, particular, special, apart

[domsalazar0]

I agree - that sentence doesnt really seem to be saying anything. And everyone's voice is "particular" technically

[hardcoregeoffy]

I wrote, 'That one is a particular voice, isn't it?' Specifically because of the tiu = that one/that x

[kiddo-depido]

La vocxo de la esperanta kurso? Gxi estas amuza.