(QCIF) for videos longer than one minute. Lowering the resolution reduces the number of pixels the encoder has to track, which preserves sharpness. 2. Manage the Frame Rate
Use AAC-LC (Low Complexity) instead of AMR. AMR audio sounds like a scratchy telephone call. AAC provides acceptable mono or stereo sound even at incredibly low bitrates. 4. Configure Audio Bitrates Economically 3gp king only 1mb video better