The voice prompt of Huawei cygnet has been translated into English. How to change it?

AM08 Bluetooth speaker has three kinds of prompts: Chinese girl, English girl and ringtone prompt. Switching mode between the three: in the pairing mode, or when the Bluetooth pairing key is pressed for a long time to enter the pairing mode, short pressing the up and down keys can realize free switching.

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At present, there are many Bluetooth headsets on the market, but there are relatively few Bluetooth speakers. The so-called Bluetooth speaker actually refers to the speaker that relies on Bluetooth transmission protocol as the carrier for data transmission.

Because most mobile devices (mobile phones, notebooks, tablet computers) are equipped with Bluetooth chips, they can be quickly identified without data lines or audio lines, and the operation is simple and the connection is convenient.

From the point of view of sound quality, the effective audio data volume of CD sound quality data (44. 1KHz sampling rate, 16bit sampling accuracy) is about 1.4Mbit to transmit CD sound quality music signals, and the transmission rate can only be kept at 2Mbit per second, so the Bluetooth "2. 1+EDR" specification is enough.

Moreover, because this kind of products often follow the mature acoustic structure of traditional speakers, they can be played wirelessly after integrating Bluetooth module, and the sound quality performance is equivalent to that of speakers of the same level.

From the specification point of view, although the Bluetooth 3.0/4.0 standard is put forward, the former is mainly reflected in the fact that the radio frequency modulation mode of Bluetooth conforms to Wi-Fi, and the latter is reflected in the application of automatic power control.

That is, in terms of low power consumption, these two versions reflect the progress of Bluetooth technology, but have little connection with audio applications. From the point of chip-level application, it is suitable for version 3.0/4.0.

The mainstream Bluetooth speakers all adopt A2DP stereo protocol, while 20 12 smartphones, tablets and other devices all support A2DP protocol, so there is no obstacle to using Bluetooth speakers.