## Should I hear be able to a difference in pronunciation between "or" and "all", and if so, what is it?

1

I’m not a native speaker of English; I’m Vietnamese. When I listen to a voice sample of or vs all, I can’t hear any difference between those two words.

Do they really have the same pronunciation? If so, does this happen everywhere? How can native speakers hear them as different words? Please clarify.

@nnnnnn Note that many speakers (such as myself) pronounce "l" differently depending on its position in a syllable. – CJ Dennis – 2020-02-29T04:50:42.147

@CJDennis - Yes, I do too. Also when a word ends in L its pronunciation can be affected by the beginning of the next word. But I don't think I ever say "all" without some variation of an L sound, it's not the same as "or". – nnnnnn – 2020-02-29T05:49:24.127

2I just had a brief look at Vietnamese phonology. It looks like any answer to this question would need to delve deeply into how Vietnamese and English phonology are quite different. For example, I'm not sure if Vietnamese has any syllables ending in /r/ or /l/, and only one of the two main varieties of Vietnamese has /r/ anyway although they both have /l/. The OP probably can't hear the difference between /r/ and /l/ having never been exposed to the two sounds in their native speech. – CJ Dennis – 2020-02-29T06:03:14.530

1In British English, which is non-rhotic, the two are close. In American English they are very distinct. – Mitch – 2020-02-29T16:24:12.537

@Mitch There's a lot more to it than that. Many—and perhaps most—Americans have the ‘close-o’ of ɢᴏᴀᴛ = /got/ in ‹or›= [oɻ] but the ‘open-o’ of ᴛʜᴏᴜɢʜᴛ = /θɔt/ in ‹all›= [ɔɫ]. Whether our asker can perceive the *tense–lax distinction* between the two *mid-back vowels* [o–ɔ] let alone the *retroflex–velar distinction* of the two *liquid approximants* [ɻ–ɫ] is an entirely different matter. Many ESL listeners unattuned to English phonemic distinctions within those two pairs can easily ‘mis-perceive’ them as identical, even though we ourselves mostly do not. – tchrist – 2020-02-29T21:01:53.740

Can you give links to the sound samples you're using? – Acccumulation – 2020-02-29T22:04:12.040

What region of Vietnam are you from? – Acccumulation – 2020-02-29T22:36:21.720

@Acccumulation, I'm on the south of Vietnam. This is the sample voices I used. https://dictionary.cambridge.org/dictionary/english/or https://dictionary.cambridge.org/dictionary/english/all

– Co Worker – 2020-03-02T08:23:21.000

3You explain r by reference to the sounds an animal might make, you define l by reference to the position and movements of the tongue. Couldn't you do that for r too ? Your answer would be much improved if you did. – None – 2020-02-28T10:03:19.797