Here are all the vowel sounds of the Modern Irish language. I have pronounced them alone.

Here are all the consonant sounds of Modern Irish (I hope I have not forgotten any !) too, I have pronounced them between two a’s sounds everytime, so it is clearer (sometimes sounds are not that clear at the beginning or at the end of a word). So, you will get every time:

● /aba/ (broad b)
● /ab’a/ (slender b)
● /aka/ (broad c)
● /ak’a/ (slender c)
etc...

My dialect is the Northwestern Ulster one. But the set of sounds is almost the same in all dialects, but some sounds exist in certain dialects, not in others, and certain consonants have a different sound according to the dialect.

Ex : /L/ (broad ll) does exist in Connemara and in Ulster Irish, but not in Munster Irish. In Munster, it is replaced by /l/ (broad l). In Connemara, the only broad l-sound that is known is the double one /L/.

It means that geal (clear, white, pale) and geall (to promise) will have two different l-sounds (/l/ and /L/) in Ulster, but they will be both pronounced with an /L/ in Connemara, and both pronounced with an /l/ in Munster (single broad l).

In the first column, the letters (l), (L) etc are the symbols that are used for the sounds in most learning books (ex : Learning Irish, by M. Ó Siadhail). /L/ = double broad l, etc

In the other columns, I will give examples of contexts in which you would hear that sound in the dialects. Maybe things are missing in Connemara and Munster columns.

Sound name	Phonological symbol (used in most books)	Ulster	Connachta	Munster
a	a	stressed a, unstressed á	stressed a	stressed a
nasalised a		a beside broad mh	a beside broad mh	a beside broad mh
unstressed a (schwa)	ə	unstressed a (schwa)...	unstressed a (schwa), unstressed final -igh, -idh....	unstressed a (schwa)...
stressed aidh, aigh	ai	stressed aidh, aigh	stressed aidh, aigh, adh	stressed aidh, aigh, adh
stressed á (Ulster)	a: , æ:	stressed á	(doesn’t exist)	(doesn’t exist)
á (Connemara & Munster)	a: , α:	(doesn’t exist)	á	á
ae	e:	ae	ae	ae
ao (parts of Ulster)		ao	(doesn’t exist)	(doesn’t exist)
ao (Connemara and parts of Ulster)	i:	ao	ao
ao (Munster)	e:			ao
stressed e in monosyllables	e	stressed e in monosyllables	stressed e in monosyllables	stressed e in monosyllables
unstressed e	ə	unstressed e	unstressed e	unstressed e
é	e:	é, éi, éa, -agh-, -adha-	é, éi, éa	é, éi, éa, ao
i	i	i	i	i
stressed í	i:	stressed í	stressed í, ao, aoi	stressed í
unstressed í	i:	unstressed í, aoi	unstressed í, aoi	unstressed í, aoi
ia	iə	ia	ia	ia, sometimes éa
open o	o,	all o’s except beside n, m, mh, u except before mh, bh, th	all o’s except beside n, m, mh	all o’s except beside n, m, mh
closed o	o		all o's?	all o's?
open ó	o:,	all ó’s except beside n, m, mh	(doesn’t exist?)	(doesn’t exist?)
closed ó	o:	ó before or after n or m	all ó’s	&all ó’s
nasalised o		o beside broad mh	o beside broad mh	o beside broad mh
u	u, o̤	except before mh, bh, th	except before mh, bh, th	except before mh, bh, th
nasalised u		u beside broad mh	u beside broad mh	u beside broad mh
stressed ú	u:	stressed ú	stressed ú	stressed ú
unstressed ú	u:	u +mh, bh, th, unstressed ú	u +mh, bh, th, unstressed ú	u +mh, bh, th, unstressed ú
ua	uə	ua	ua	ua
broad b	b	broad b	broad b	broad b
slender b & bp	b'	slender b & bp	slender b & bp	slender b & bp
broad bh & mh (Munster)	v	(doesn't exist)	(doesn't exist)	broad bh & mh
broad bh & mh (Ulster & Connemara)	w	broad bh & mh mostly at the beginning of a word	broad bh & mh mostly at the beginning of a word	(doesn't exist?)
slender bh & mh	v'	slender bh & mh	slender bh & mh	slender bh & mh
broad c	k	broad c	broad c	broad c
slender c	k'	slender c	slender c	slender c
broad ch	x	initial broad ch	broad ch	broad ch
slender ch	x'	slender ch, sh before –eá- and –iú-	initial slender ch, initial sh before –eá- and –iú-	initial slender ch, initial sh before –eá- and –iú-
broad d & initial dt	d	broad d & initial dt	broad d & initial dt	broad d & initial dt
slender d & initial dt (Ulster and Connemara)	d'	slender d & initial dt	slender d & initial dt	(doesn't exist)
slender d & initial dt (Munster)	d'	(doesn't exist)	(doesn't exist)	slender d (Munster)
initial broad gh & dh	ɣ	initial broad gh & dh	initial broad gh & dh	initial broad gh & dh
slender gh & dh	ɣ', j	slender gh & dh	slender gh & dh (except at the end of a word)	slender gh & dh (except at the end of a word)
broad f & ph	f	broad f & ph	broad f & ph	broad f & ph
slender f & ph	f'	slender f & ph	slender f & ph	slender f & ph
broad g & gc	g	broad g & gc	broad g & gc	broad g & gc
slender g & gc	g'	slender g & gc	slender g & gc	slender g & gc
h, sh, th	h	h, sh (except before eá, iú), th	h, sh (except before eá, iú), th	h, sh (except before eá, iú), th
broad l (l)	l	single broad l’s and lenited broad l’s (do lón)	(doesn't exist)	all broad l's and ll's
broad ll (L)	L	double broad l’s and unlenited broad l’s (lón)	all broad l’s and ll’s	(does'nt exist)
devoiced broad l		broad l before or after th or sh, and before f (in future & conditional)	broad l before or after th or sh, and before f (in future & conditional)	broad l before or after th or sh, and before f (in future & conditional)
slender l (l’)	l'	single slender l’s and lenited slender l’s (do leabaidh)	single slender l’s and lenited slender l’s (do leabaidh)	all slender l’s and ll’s
slender ll (L’)	L'	double broad l’s and unlenited broad l’s (leabaidh)	double broad l’s and unlenited broad l’s (leabaidh)	(doesn't exist)
devoiced slender l		slender l before or after th or sh, and before f (in future & conditional)	slender l before or after th or sh, and before f (in future & conditional)	slender l before or after th or sh, and before f (in future & conditional)
broad m & initial mb	m	broad m & initial mb	broad m & initial mb	broad m & initial mb
slender m & initial mb	m'	slender m & initial mb	slender m & initial mb	slender m & initial mb
broad n (n)	n	single broad n’s and lenited broad n’s (do nós)	(doesn't exist)	all broad n’s and nn’s
broad nn & initial nd (N)	N	double broad n’s and unlenited broad n’s (nós), initial broad nd	all broad n’s and nn’s, initial broad nd	(doesn't exist)
devoiced broad n		broad n before or after th or sh and before f (in future & conditional)	broad n before or after th or sh and before f (in future & conditional)	broad n before or after th or sh and before f (in future & conditional)
broad ng	ŋ	broad ng	broad ng	broad ng
slender n (n’)	n'	single slender n’s and lenited slender n’s (do nead)	single slender n’s and lenited slender n’s (do nead)	all slender n's and nn's
slender nn (N’)	N'	double slender n’s and unlenited slender n’s (nead)	double slender n’s and unlenited slender n’s (nead)	(doesn't exist)
devoiced slender n		slender n before or after th or sh and before f (in future & conditional)	slender n before or after th or sh and before f (in future & conditional)	slender n before or after th or sh and before f (in future & conditional)
slender ng	ŋ’	slender ng	slender ng	slender ng
broad p	p	broad p	broad p	broad p
slender p	p'	slender p	slender p	slender p
broad r (r)	r	single broad r’s and lenited r’s (do rós, do rí)	all broad r’s and all initial r's	all broad r’s and initial unlenited r's
broad rr (R)	R	double broad r’s and unlenited r’s (rós, rí)	(doesn't exist?)	(doesn't exist)
devoiced broad r		broad r before or after th or sh and before f (in future & conditional)	broad r before or after th or sh and before f (in future & conditional)	broad r before or after th or sh and before f (in future & conditional)
slender r (r’) and rr (R’)	r'	single slender r’s except at the beginning of words	single slender r’s except at the beginning of words	single slender r’s and all lenited r's
devoiced slender r		slender r before or after th or sh and before f (in future & conditional)	slender r before or after th or sh and before f (in future & conditional)	slender r before or after th or sh and before f (in future & conditional)
broad s	s	broad s	broad s	broad s
slender s	s'	slender s	slender s	slender s
broad t & initial ts	t	broad t & initial ts	broad t & initial ts	broad t & initial ts
slender t & initial ts (Connachta and Ulster)	t'	slender t & initial ts	slender t & initial ts	(doesn't exist)
slender t & initial ts (Munster)	t'	(doesn't exist)	(doesn't exist)	slender t & initial ts