aacPlusEnc No valid SBR configuration found, Tunning table Options

[wowrz]

When i add
tuningTable[] = {
.
.
.

{ 60000, 68000, 22050, 2, 12, 9, 3, 0, -3, SBR_SWITCH_LRC, 2 }, /* nominal: 64 kbit/s */
{ 68000, 76000, 24000, 2, 12, 9, 3, 0, -3, SBR_SWITCH_LRC, 2 }, /* nominal: 72 kbit/s */

.
.
.

into the tunning table,then i can make up 64 72 kbps .3gp ( STEREO )

but it can't make up the 96 kbps in the same way.....>< ("{ 92000, 100000, 24000, 2, 12, 9, 3, 0, -3, SBR_SWITCH_LRC, 2 }, /* nominal: 72 kbit/s */") <=Failed


By the way ,how can i make up the "48" "64" "96" kbps .3gp ( MONO )