If you practice every day. 1-2 month 1-NN1D5 's voice will change immediately. Time to talk out differences begin to sound when spoken tongue begin to light than normal time, say K, t, it will take more than strength.
I practice every day for 1-2 months sounds about 1-1.5 turns away. The voice begins to speak his tongue out at the start rather than the usual time, say K, t is a force greater than normal.
If you practice everyday 1-2 about 1-1.5 months sound will change immediately. When the voice begins to break ออกมาเวลา said, tongue will begin to light than usual. When you say, K T will use force more than usual.