Hi-RES audio transfer with INIC? ? ?

question!

Is it possible to transfer Hi-RES audio over the network using INIC's streaming port?

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answer

yes. Is possible!

INIC's network clock operates at 48KHz, and it is difficult to transfer data directly to the streaming port (I2S/TDM). How do I transfer it? Hi-RES audio transfer is possible by dividing the 96KHz sample data into 2 samples and transferring the 2 sample data into a 48KHz streaming port. Decomposition processing is required on the source side, and merging processing is required on the sink side.

What is important here is that the data format to be transferred on the source side and the sink side must be matched and transferred. When INIC is used, it becomes data transfer between ECUs, so it is important to consider the specifications in advance for the entire system.

By using INIC as described above, it is possible to achieve Hi-RES and multi-channel audio transfer. INIC is also capable of transferring audio streaming data between nodes in a synchronous manner with low latency.

Premium sound system using MOST® and ISO21806

Many mass-produced cars have already been released with digital transmission to external amplifiers and multi-channel compatible premium sound systems such as 5.1CH. Many vehicles with multi-channel audio have already been released for infotainment systems equipped with INIC as standard. It is thought that the evolution of sound systems in vehicles will continue, such as system control and noise cancellation systems that use voice recognition, which is also in the infotainment field.

As for the premium sound system, many cars have been released that can be installed as standard equipment in premium brand vehicles or can be selected as a manufacturer option. When choosing a car in the future, if you look at the car from the viewpoint of the sound system, such as Hi-RES support and multi-channel audio support, you may make new discoveries.

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