Don't forget for each sound you need to put double slash or bracket.
/ p /, / b /[ p ] [ b ]
/ p /
Lips : Pressed
together
Airstream : Stopped
and then exploded
Vocal cord : Not
vibrating
For Example : Pain,
pepper, and soap
/ b /
Lips : Pressed
together as for /p/
Airstream : Stopped
and then exploded
Vocal cord : Vibrating
For Example : Begin,
Label, and Rob
And here are the video on Youtube to hear clearly each sound
American style
/ p / https://www.youtube.com/watch?v=V_n_rUKQSew
/ b / https://www.youtube.com/watch?v=LbCOXRz7Uf8
British Style
/ p / https://www.youtube.com/watch?v=W3bI_PE_kNc
/ b/ https://www.youtube.com/watch?v=MPdBni6svgQ&t=7s
Let’s next to / t / and / d /