2014/10/15 下午 10:14:20

iphone Programming Glossary: spl

How to get a volume measurement of iPhone recording in dB, with a limit of at least 120dB

http://stackoverflow.com/questions/2548238/how-to-get-a-volume-measurement-of-iphone-recording-in-db-with-a-limit-of-at-le

a dynamic range of 96 dB but I suspect you may be getting confused between dB which is a relative measurement and dB SPL which is an absolute measurement of sound pressure level . To measure dB SPL though you will need to calibrate your microphone.. dB which is a relative measurement and dB SPL which is an absolute measurement of sound pressure level . To measure dB SPL though you will need to calibrate your microphone and audio hardware with some kind of reference. Once you have your input.. input calibrated then it may well be that your 96 dB of dynamic range translates to an absolute range of say 44 dB SPL to 140 dB SPL . See also my answer to a previous similar question on SO http stackoverflow.com questions 2445756 how can..

How to read data structure from .plist file into NSArray

http://stackoverflow.com/questions/749504/how-to-read-data-structure-from-plist-file-into-nsarray

@ 102 @ id nil NSDictionary league3 NSDictionary alloc initWithObjectsAndKeys @ Scottish Premier League @ name @ SPL @ shortname @ 201 @ id nil NSDictionary league4 NSDictionary alloc initWithObjectsAndKeys @ Champions League @ name @ UCL.. Scottish string key leagues key array dict key name key string Scottish Premier League string key shortname key string SPL string key id key string 201 string dict array dict dict key category key string Tournaments string key leagues key array..