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A new car audio digital Chime player

A player and car technology, applied to instruments, static memory, digital memory information, etc., can solve the problems of cumbersome changes, complex configuration register operations, single chime sound quality, etc., to reduce transmission time, freely customize diverse sound effects, Reasonable and stable structure

Active Publication Date: 2020-11-20
YANFENG VISTEON ELECTRONICS TECH NANJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • 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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  • A new car audio digital Chime player
  • A new car audio digital Chime player
  • A new car audio digital Chime player

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Embodiment Construction

[0024] 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.

[0025] 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 new type of car audio Digital Chime player, which belongs to the technical field of car electronics and includes MCU, DSP, a first Flash, and a second Flash. The MCU is connected to the DSP and the first Flash, and the DSP is connected to the first and second Flash; During initialization, the DSP is the master, and the second Flash is the slave. The HiFi processing program of the second Flash is loaded into the HiFi core of the DSP. After initialization, the communication between the DSP and the second Flash is cut off, and the DSP mounts the SPI data channel On the SPI data channel between the MCU and the first Flash, the MCU is the master, the first Flash is the slave, and the DSP is switched from the master to the slave to realize dual-slave data transmission. This player can effectively improve the sound quality of Chime, and can freely customize diversified sound effects, overcoming the dependence on specific DSP chip modules.

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 Patents(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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