44,100 Hz Audio CD, most commonly used rate with MPEG-1 audio (VCD, SVCD, MP3). Covers the 20 kHz bandwidth. 48,000 Hz Standard sampling rate used by professional digital video equipment, could ...

By targeting users’ smartphone lock screens, push notifications can drive higher Click-Through-Rates (CTRs). So, anyone who’s trying to determine the cost of mobile app advertising should also make ...