Note (3)

Recommendation on Hi-Res Audio upsampling settings

The Hi-Res Audio player software plays an important role when one trying to archive the best sounding experience. It is often a muddy business to setup things right. Here we present our recommended condition for our customer to save some time. 1. Audirvana First order of business, make sure upsampling is enabled. Under upsampling panel: 2. Foobar2000 Under DSD Processor Settings Panel, set up the output and SDM type so that PCM audio stream can be upsampled to DSD before sending to the DAC.

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Notes on Evaluating Our Motional-Feedback Headphone Amplifier

Here are a few notes: Start with the HiBy R1 DAP (Digital Audio Player) to minimize configuration work on computer software or smartphone. Hold Power button of HiBy R1 DAP until the device power up. Power Button is on the upper left corner. Plugin the USB-C cable to HiBy R1 DAP and the headphone amplifier. Connect the headphone with the amplifier via 3.5mm plug. Adjust Volume to 10%. Volume Buttons are on the right middle. On HiBy R1 DAP, Click Music, Albums and find the songs you like to hear. (If HiBy DAP does not boot into home screen, sweep…

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Side Note: Why we based many our products on Analog Discovery 

Digilent Analog Discovery is a series of devices that being sold by Digilent. Digilent was bought by National Instrument many years ago, and again, bought by Emerson. It was originally marketed as a device meant for Electronics Engineering Student with subsidies from Analog Devices and Xilinx. The original Analog Discovery (the black one) was sold at $99 to students. The founder of SpecialtyCircuits used it when he was fighting to learn Verilog. Although that battle failed in 2012, but the founder learnt the capacities of it. Later, Digilent released many more updated versions, Analog Discovery 2, Analog Discovery 3, Analog…

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