speech interference level

en-GB/ˈspiːt͡ʃ ˌɪntəˈfɪəɹəns ˈlɛvl/
en-US/ˈspit͡ʃ ˌɪnɚˈfɪɹəns ˈlɛvəl/

دسته بندی ها:

unit of measurementloudness