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摘要： 【转至： http://goog-perftools.sourceforge.net/doc/cpu_profiler.html】This is the CPU profiler we use at Google. There are three parts to using it: linking the library into an application, running the code, and analyzing the output.Linking in the LibraryTo install the CPU profiler into your executable, a 阅读全文

摘要： 【转至： http://goog-perftools.sourceforge.net/doc/heap_profiler.html】Profiling heap usageThis document describes how to profile the heap usage of a C++ program. This facility can be useful forFiguring out what is in the program heap at any given timeLocating memory leaksFinding places that do a lot of 阅读全文

摘要： 【好久没做音频开发了，公布一年半年前在上一家公司做的瑞士军刀里的重采样算法定点化系数xCoeff定点化查表表格，如果底层没有变动的化，目前手机通通里的升采样处理用的就是这套算法做定点化好久没做音频开发，现在都陌生了。。。。】【只是隐隐约约记得当时是花了整整两个星期加班把那套浮点的重采样处理算法实现了定点化，定点化的过程全忘记了。当时用原始的低音质8k/16k wav文件先用SSRC Upsample到高采样率，再基于这套定点的重采样处理算法把它们 低音质的 wav升到高采样率，再基于PEAQ/PEMOQ来对比分值，当时记得效果还可以，至少用PEMOQ求得的相关性为0.9+】/** add by 阅读全文

摘要： 转至链接：http://www-mmsp.ece.mcgill.ca/Documents/Software/index.html#AFspTelecommunications & Signal Processing LaboratoryMultimedia Signal ProcessingSoftware PackagesAudio File Programs and RoutinesThe AFsp package is a library of routines for reading and writing audio files of various formats. It 阅读全文