Don't forget for each sound you need to put double slash or
bracket.
/ t /, / d /
[ t ] [ d ]
/ t /
Tongue tip : Firmly
pressed against gun ridge behind upper front teeth
Airstream :
Stopped and then exploded
Vocal cord : Not vibrating
For Example : Try,
Empty, and Ate
/ d /
Tongue tip : Firmly
pressed against gum ridge behind upper
front teeth
Airstream :
Stopped and then exploded
Vocal cord :
Vibrating
For Example : Down,
Order, and Card
And here are the video on Youtube to hear clearly each sound
American style
/ t / https://www.youtube.com/watch?v=mLlotV_0dRI
/ d / https://www.youtube.com/watch?v=N73xPe0x79g
British Style
/ t / https://www.youtube.com/watch?v=8gP9ygo2988
/ d / https://www.youtube.com/watch?v=6R6hh1aKDiE
Let’s next to /