| - Dynamic adjustment of energy quantisation | |
| - Psychacoustics | |
| * Error shaping within each band | |
| * Desisions on the rate | |
| - Intensity stereo option (e.g. threshold) | |
| - Dynamic (intra-frame) bit allocation | |
| - Joint encoding of stereo energy | |
| - Disable intra-frame prediction for more than X pulses | |
| - Remove contraction? | |
| - Simplify search? | |
| - Remove pulse spreading? | |
| - Encode band shape (or just tilt)? | |
| - Make energy encoding more robust to losses? |