The 44.1KHz sampling frequency specified for Red Book CDs sample the amplitude of the music 44,100 times each second. Sampling rate is the frequency at which the amplitude of the analog sound wave is sampled. In the graphic below the white wave form represents the musical signal being quantized and the green step pattern overlaid represents the quantized values. The horizontal X axis represents time or sampling frequency and the vertical Y axis represents amplitude or bit depth. The process of converting analog sound waves into a digital format is known as “quantization,” which is often represented as points plotted on an XY axis. Historical note: The 16-bit format existed long before 16-bit digital-to-analog converters (DACs) were available. Both 16 bits and 24 bits became standards because each represented the next digital word. So 16 bits = 2 bytes and 24 bits = 3 bytes. This is why everything in the digital world is divisible by 8. There are 8 bits to a byte and a byte is known as a digital word. When digital data is transferred and manipulated it is moved in bytes rather than as individual bits. So why did 24-bit become the new standard?
You also may want to refer to my other blog on
EXTREME SAMPLE CONVERTER 64 BITS FULL FREE
If you're not sure if you should believe the statements in this blog which contradict much of the marketing hype, myth, and legend in the audiophile industry, feel free to check the references at the end. This blog will explain the math and physics of digital recording and musical reproduction in layman's terms so that you can decide for yourself if this is progress or simply marketing madness. Interestingly enough, not everyone agrees that greater bit depth and higher sampling rates are good things. Now I hear talk about developing a new 32-bit 384KHz standard for HD music. More and more music has become available in “high-definition” (HD) digital formats, such as 24-bit 192KHz downloads, 24-bit 88.2KHz MQA streaming, and DSD.
0 kommentar(er)
