International sound regulation is:
Odd track: CH1: Mixture sound (sow phonate) CH2: International sound
Stereo: CH1: L channel CH2: R channel
The assess branch that the TV program heads quality measures quantity and subjective opinion objectively. Current, subjective evaluation still undertakes assess by the person, the criterion for evaluation of the quality of image of criterion for evaluation has the following sides:
* clutter and interference visibility;
* picture definition;
* brightness administrative levels;
* color fidelity;
* makes difficulty.
Audio quality is subjective the evaluation is to press volume, acoustic quality, sound the processing of harmonious, artistic effect, skill that make and integral effect undertake evaluating.