Huawei Technologies Co., Limited

Huawei Device (dongguan) Co., Ltd.

Yanhui Ren

Fushun Chen

Ligang Yu

Fang-Ching Lee

Haibo Shan

Jianwei Zhu

Meimei Han

Zhengbin Sun

Embodiments of the present invention disclose an audio play apparatus and a device. The audio play apparatus includes a loudspeaker, a loudspeaker container, and a cavity expansion material, where the loudspeaker and the cavity expansion material are disposed in the loudspeaker container, the cavity expansion material is a fabric made of fibers with irregular holes on a surface, and holes are formed between fibers of the fabric. The fabric made of the fibers with the irregular holes on the surface is disposed in the audio play apparatus. In this way, when the audio play apparatus plays audio, by using gaps between the fibers of the fabric and the irregular holes on the surface of the fibers, a resonance frequency f0 of the audio play apparatus is reduced, and a frequency band width is increased.

Audio play apparatus and device

A terminal device includes: an access unit, connected between a headset or an audio speaker and a digital-to-analog converter, and configured for insertion of a detachable second power amplifier; a processor, configured to: detect whether the second power amplifier is inserted into the access unit, output a first digital signal when detecting that the second power amplifier is inserted, and output a second digital signal when detecting that the second power amplifier is not inserted; the digital-to-analog converter, connected to the processor, and configured to: when receiving the first digital signal, convert the first digital signal to a first analog signal, and send the first analog signal to the second power amplifier; and when receiving the second digital signal, convert the second digital signal to a second analog signal, and send the second analog signal to a first power amplifier.

Terminal device, and signal sending method and apparatus

The present invention relates to a sound effect control method and apparatus, where the method includes: when a hands-free call is performed for a mobile terminal, detecting whether a hands-free call channel of the mobile terminal is shielded; and adjusting a configuration of the hands-free call channel of the mobile terminal and/or outputting an alarm signal to inform a user that the hands-free call channel is shielded, when it is detected that the hands-free call channel of the mobile terminal is shielded. According to the method, when a hands-free call is performed for a mobile terminal, whether a hands-free call channel of the mobile terminal is shielded is detected; when it is shielded, a configuration of the hands-free call channel of the mobile terminal is adjusted and/or an alarm signal is output, which can effectively improve quality of the hands-free call of the mobile terminal.

Sound effect control method and apparatus

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Tampere, Finland

Yanhui Ren