A sound producing package structure configured to produce sound includes a substrate, a sound producing component and a conductive adhesive layer. The sound producing component is disposed on the substrate, and the sound producing component is configured to generate an acoustic wave corresponding to an input audio signal. The conductive adhesive layer is disposed between the substrate and the sound producing component by a surface mount technology.

A sound emitting apparatus includes a speaker unit and an enclosure of the speaker unit having an aperture configuring a Helmholtz resonator. A resonance frequency Fr of the Helmholtz resonator is set to be equal to or higher than a reproducible lower limit frequency of the speaker unit.

A loudspeaker device comprises first and second diaphragms (12, 14) arranged co-axially in an opposed relation to each other to cancel mechanical vibrations. Each diaphragm has multiple voice coils, with the voice coils of the first and second diaphragms (12, 14) arranged in the same plane to reduce the height of the loudspeaker device.

A loudspeaker includes a first electro-acoustic transducer, a horn acoustically coupled to the first electro-acoustic transducer, and a first acoustic leak that is acoustically coupled to the horn. The first acoustic leak is positioned so as to reduce a peak in a frequency response of the loudspeaker at the targeted frequency without removing the targeted frequency from the output of the loudspeaker.

A speaker is provided, including a speaker housing and a speaker body. The speaker body is connected to the speaker housing, the speaker body and the speaker housing form a cavity, the cavity includes a first inner cavity and a second inner cavity, and the first inner cavity and the second inner cavity are connected through a connecting hole.

This disclosure provides a speaker and a terminal device. The speaker includes a speaker housing and a speaker body, where the speaker body is disposed in the speaker housing, the speaker body and the speaker housing form a speaker front cavity and a speaker rear cavity, the speaker housing is provided with a sound output channel, the sound output channel communicates with the speaker front cavity, the speaker rear cavity includes a first sub-cavity, the speaker housing includes a first spacer disposed in the first sub-cavity, the first spacer splits the first sub-cavity into a resonance tube and a resonance cavity, the resonance tube communicates with the resonance cavity, a first connecting hole is provided in a side wall of the speaker front cavity, and the speaker front cavity communicates with the resonance tube through the first connecting hole.

A sound producing package structure configured to produce sound includes a substrate, a sound producing component and a conductive adhesive layer. The sound producing component is disposed on the substrate, and the sound producing component is configured to generate an acoustic wave corresponding to an input audio signal. The conductive adhesive layer is disposed between the substrate and the sound producing component by a surface mount technology.

An omnidirectional loudspeaker box comprises a plurality of loudspeaker modules uniformly disposed in an annular configuration. Each loudspeaker module comprises one or more active vibration units and one or more passive vibration units. The one or more active vibration units are uniformly disposed in an annular configuration. The one or more passive vibration units are uniformly disposed in an annular configuration. The one or more active vibration units can respond to the input of external signals and drive the one or more passive vibration units to vibrate together, thereby generating improved sound quality and effect.

A hearing assisting (10) device including a receiver (1) for generation of acoustic signals and a fixture (3, 8, 9) for positioning the receiver. A suspension (2, 21, 22) supports the receiver to the fixture. The combination of the receiver and the suspension has a mechanical resonance frequency in the range from 6 kHz to 10 kHz.

The present disclosure provides a speaker assembly. The speaker assembly includes: a frame, a magnetic circuit system, a vibration system, and a flexible circuit board. The flexible circuit board includes a first mounting portion, a second mounting portion spaced from the first mounting portion for being fixed to the frame, and a pair of elastic arms. Each elastic arm includes a first fixing end connected to the first mounting portion, a first connecting arm extending from the first fixing portion, a second fixing end connected to the second mounting portion, a second connecting arm extending from the second fixing end, and a connecting portion connecting the first connecting arm to the second connecting arm. The two connecting portions of the two elastic arms are connected with each other at the corresponding portions.