Audio matching method and system

The invention provides an audio matching method which is used for detecting an audio segment matched with an audio sample in a standard audio library from an audio stream segment to be tested; the invention comprises that: on an energy envelope card unit diagram of the audio stream segment to be tested, a starting point of each energy envelope card unit is selected as a point of matching operation; each audio sample and the audio stream segment to be tested are expressed in a number pair form consisting of a segmentation point and a probability pair; the number pairs of the audio stream segment to be tested is compared with each audio sample in turn to achieve a matching point and a corresponding matching probability; a comparability metric function is adopted to calculate the matching point and the corresponding audio sample and get a similarity value; the similarity value is compared with a preset threshold value; if the similarity value is more than the threshold value; the audio segment corresponding to the matching point is considered to be matched with the audio sample corresponding to the matching point. The invention has the advantages of simple calculation and rapid calculating speed.