Novel automobile audio Digital Chime player

A technology for players and automobiles, which is applied to instruments, static memory, digital memory information, etc. It can solve the problems of cumbersome changes, complex configuration register operations, and single sound quality of Chime sound, etc., to reduce transmission time, fast data transmission speed, and structure Reasonable and stable effect

Active Publication Date: 2020-08-11
YANFENG VISTEON ELECTRONICS TECH NANJING
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  • Application Information

AI Technical Summary

Problems solved by technology

At present, Chime playback on cars mainly relies on the existing modules provided by DSP chip suppliers to realize prompt sound effects in various scenarios. Generally, common sine waves are used to modulate chord sounds, and the output Chime sounds are relatively single and the sound quality is poor. , while the configuration register operation is complicated and the change is cumbersome

Method used

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  • Novel automobile audio Digital Chime player
  • Novel automobile audio Digital Chime player
  • Novel automobile audio Digital Chime player

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Embodiment Construction

[0025] In order to deepen the understanding and recognition of the present invention, the present invention will be further described and introduced below in conjunction with the accompanying drawings.

[0026] Such as figure 1 As shown, a new type of car audio Digital Chime player is mainly designed based on the HiFi Core architecture, supports the playback of high-resolution lossless audio files, can meet the requirements of low latency and fast sound output, and plays high-quality sound. The Digital Chime player includes the main control MCU, data processor DSP, Wav Chime Flash, and HiFi Core Flash. Data transmission mainly exists between the main control MCU, data processor DSP, and Flash. Since the SPI transmission is stable and the transmission speed is relatively fast Fast, it is preferable to use the SPI channel of the data processor DSP as a separate data transmission channel, and the communication between the main control MCU and the data processor DSP only has instr...

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Abstract

The invention relates to a novel automobile audio Digital Chime player, which belongs to the technical field of automobile electronics and comprises an MCU, a DSP, a first Flash and a second Flash, the MCU is connected with the DSP and the first Flash, and the DSP is connected with the first Flash and the second Flash. During initialization, the DSP serves as a host, the second Flash serves as a slave computer, the HiFi processing program of the second Flash is loaded into the HiFi kernel of the DSP; after initialization, communication between the DSP and the second Flash is cut off, the DSP mounts the SPI data channel to the SPI data channel between the MCU and the first Flash, the MCU is a host, the first Flash is a slave, the DSP is switched from the host to the slave, and dual-slave data transmission is achieved. According to the player, the tone quality of the Chime can be effectively improved, diversified sound effects can be customized freely, and dependence on a specific DSP chip module is overcome.

Description

technical field [0001] The invention relates to the technical field of automotive electronics, in particular to an automotive audio Digital Chime player based on a dual-slave digital transmission strategy. Background technique [0002] With the development of automotive electronics technology, major automakers have more and more application scenarios for Chime, and users are increasingly pursuing high-quality sound. The demand for Chime is also gradually developing from single to high-quality and diversified. At present, the Chime playback on the car mainly relies on the existing modules provided by the DSP chip supplier to realize the prompt sound effects in various scenarios. Generally, the common sine wave is used to modulate the chord sound, and the output Chime sound is relatively single and the sound quality is poor. , and the configuration register operation is complicated and the change is cumbersome. Contents of the invention [0003] The object of the present in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B20/10G11C7/16
CPCG11B20/10527G11B2020/10546G11B2020/10629G11C7/16
Inventor 韦玮郭宁之杨勇陈亮曹乐千张勇崔立业张歆钰姜杨
Owner YANFENG VISTEON ELECTRONICS TECH NANJING
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