Transcoding options similar to air video or qloud...

I have an android tablet and a phone which I am wanting to stream from my pc at home. I am in Korea and I am subscribing to LTE connection which offers up to tens of mega bps speed. However, I would like to stream right around at 2~3 mbps (which offers good quality when transcoding to h.264 while maintaining the original resolution for both video and audio. Air video and Qloud allows choosing the streaming bitrate and they work very well).
The current options on the serviio has following problems for me:
1. Original - Alot of my video files are at 8 mbps (too high).
2. Medium - The resolution is scaled down which there is a noticeable deterioation.
3. Low - The video quality is not acceptable at all.
Also, I would like to ask that the audio bit rate to be not compromised when selecting the bit rate (audio is very important for the viewing experience IMO) and offer volume boost when down coding from AC3/DTS to stereo.
Thank you for your work and I look forward to your reply.
The current options on the serviio has following problems for me:
1. Original - Alot of my video files are at 8 mbps (too high).
2. Medium - The resolution is scaled down which there is a noticeable deterioation.
3. Low - The video quality is not acceptable at all.
Also, I would like to ask that the audio bit rate to be not compromised when selecting the bit rate (audio is very important for the viewing experience IMO) and offer volume boost when down coding from AC3/DTS to stereo.
Thank you for your work and I look forward to your reply.