def clear(self):
        for cacheItemId in self._cacheItems.keys():
            cacheItem = self._cacheItems[cacheItemId]
            cacheItem.clear()
            del self._cacheItems[cacheItemId]
This function converts the WAV files stored in a folder to WAV using a different sampling freq and number of channels.
dataset/ETHPy150Open skyostil/tracy/src/generator/Cheetah/CacheRegion.py/CacheRegion.clear--crossover with--dataset/ETHPy150Open tyiannak/pyAudioAnalysis/audioBasicIO.py/convertFsDirWavToWav