Mistral Solutions Pvt. Ltd. Offers Automotive Digital Radio with Audio DSP. Mistral Solutions Pvt. Ltd. Has been awarded ISO 9001:2008 certifications. Automotive Digital Radio with Audio DSP is a hardware reference design to demonstrate the capabilities of a low cost digital radio with car kit functionalities. Automotive Digital Radio with Audio DSP is designed around a single black fin BF53x processor. The hardware reference design of this radio is based on BF53x