As a rule, in a recording studio, we use professional apparatus, including dedicated clock sources, (a Word Clock as an example). If music was recorded with jitter errors we can’t compensate it further. after restoration to analog form (playback) signal, captured with and without jitter, they have different waveforms of the analog signal. We can see that samples for both of these cases have different values. In the lower-left part of the picture, the signal captured with jitter. In the upper left part of the picture, the signal is captured without jitter. Let’s compare capturing with jitter and without If the periods will vary, it causes time distortions in recorded audio samples. Digital music signal comes to DAC and converted to analog with time errors (read details below).Ĭapturing of music is the periodical measurement of an analog signal.Then digital signal pass thru the digital audio system without time errors.The first jitter source can be a clock generator of an analog-digital converter (ADC).To understand jitter issues fully we need to learn more about the full recording-playback system. When we use recorded stuff, we already have a jittered sequence of digital samples. Unfortunately, jitter is not a pure DAC issue. However, clocking in not ideal and the restored signal is distorted like it is shown in the picture. The distance is defined by what we call clocking. In the ideal case, the same time distance between the samples should be provided. Below we will discuss why jitter exists, who it is estimated, and suppressed.ĭigital-analog converters (DAC) transform sample sequences (digital values) to analog voltage level sequences. Many audiophile digital audio system owners worries about jitter. Jitter is the time distortions of recording/playback of a digital audio signal. All copyright belongs to said website and any reproduction of this information below can only be done with the express permission of Yuri Korzunov. This article was reproduced from the educational archives of Yuri’s Sample Rate Converter website with his kind permissions. Yuri ends the year with a more detailed explanation of what jitter actually is, measured, and suppressed in audio components. You hear this term jitter quite a lot in audiophile discussions, particularly with reference to digital audio conversions or DACs.

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