Zhongguancun online data shows that Android system limits all audio output sampling rate to 44. 1KHZ, while IOS does not. The speaker configuration and performance are different, so the sound quality oppo of Apple mobile phone is also different.
OPPO is Guangdong Opal Mobile Communication Co., Ltd., which was renamed from Dongguan Opal Mobile Communication Co., Ltd., and the company completed the renaming formalities at the end of February 2009. Dongguan Opal Mobile Communication Co., Ltd. was formerly known as Dongguan Ming Sheng Electronics Co., Ltd. and was established in April 2003.