Soundscape ecology is an emerging area in landscape ecology. Soundscape characteristics can provide information that complements landscape characteristics. The study of soundscapes is based on an understanding of how sound from various biological, geophysical, and anthropogenic sources can be used to understand coupled natural-human dynamics across different spatial and temporal scales. The audio characteristics emitted from an ecosystem provide unique insights into the spatial and temporal patterns of ecosystem responses to human disturbances. The biological composition and the audio characteristics of different parts of the ecological environment, such as wetland, forest, and city parks. Furthermore, the soundscape changes throughout the day and throughout the seasons. Acoustic signal diversity, which refers to the patterns of frequency and temporal use of the acoustic spectrum, reflects biocomplexity and human activities. Previous research divided the soundscape into three primary components within the acoustic frequency spectrum, defined as biophony, anthrophony, and geophony. Biophony is the part of soundscape that consists of the sounds produced by all the organisms in a particular landscape. The biophony composition can be used to indicate community biodiversity. Several sound (or soundscape) diversity indicators have been developed. In this study, we introduced an object-oriented classification approach for analyzing sound diversity using bird communities as a case study. The bird sound characteristics were used to extract a patch index that included the number of patches, the frequency range and standard deviation, and the area-to-perimeter ratio. This approach was able to distinguish between the soundscape scenarios recorded at different locations in Hangzhou Botanical Garden, China.The results showed that bird diversity was closely related to the particular features of different landscapes. The central frequency for birds ranged between 2.5 and 4.5kHz;the lowest frequency was between 0.67 and 2.1kHz, and the highest frequency between 7.6 and 8.9kHz.The stronger the human interference, the shorter the bird songs and calls. In addition, bird sound characteristics quantitatively reflected the complexity of the bird songs and calls using the patch area-to-perimeter ratio parameter..