In the following we give you some tips for the settings of nanoDVR:
1. Pictureformat
2. Framerate
3. Bitrate
4. Coding Speed
5. HQ or not HQ
6. Motion Estimation
7. Audio Offline and Fast
Audio
1. Picutureformat:
A typical resolution to use is 352x288 pixels. This is a quarter of the full
PAL TV-Resolution.
Higher resolutions are not supported by most TV-Capture boards, so that a good
encoding is not possible. Small resolutions do not look good if you zoom them
up.
2. Framerate:
Films do have a fine motion from 25 frames per second on. Please use this
framerate first.
If your CPU is not fast enough, or your priority is the picturequality, lower
the framerate under 25, but the MPEG-1 and MPEG-2 standard does not support
framerates lower than 25.
Sure is, that you will have errors in the speed, when playing a MPEG-2 film
encoded with a framerate lower than 25.
3. Bitrate:
The entered bitrate determines the size of the output file. Beside that the
Quality rises at higher bitrates.
The disadvantage is, that your outputfile will become larger.
4. Coding Speed:
The Codingtempo influences the pictureuality of the creating film. The different between the levels is not big, so that these settings can be used for finetuning.
5. HQ or not HQ:
The setting "HQ" (High Quality) influences the picturequality much. Mostly the speed of the used PC decides if you can use HQ or not.
The kind of the Motion Estimation can be set in three different levels. The
level "slow" is extrem slower as the other one and should only be used
on very fast machines.
The qualitydifferent between the three levels is not big.
7. Audio Offline and Fast Audio:
Audio Offline means, that your audio datas will be encoded after the
recording process. During the recording, the audio datas will be uncompressed
stored in a WAV File on your HDD. This gives you a speeding tuning of about 10
%, but needs more diskspace.
If you are using this, turn off "Fast Audio" to get the best possible
audio quality.