Comparison of analog and digital recording | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-01-13

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Comparison_of_analog_and_digital_recording


00:01:53 1 Dynamic range
00:04:25 1.1 Overload conditions
00:07:08 2 Physical degradation
00:09:31 3 Noise
00:11:21 3.1 Rumble
00:11:54 3.2 Wow and flutter
00:12:03 4 Frequency response
00:13:16 4.1 Aliasing
00:13:25 5 Sampling rates
00:14:21 6 Quantization
00:17:34 6.1 Quantization in analog media
00:19:49 6.2 Dither as a solution
00:23:09 7 Timing jitter
00:25:28 8 Signal processing
00:26:21 8.1 Analog hardware
00:27:44 8.2 Digital filters
00:31:26 8.3 Analog modeling
00:32:11 9 Sound quality
00:33:10 9.1 Subjective evaluation
00:34:46 9.2 Early digital recordings
00:35:35 9.3 Super Audio CD and DVD-Audio
00:35:45 9.4 Analog warmth
00:37:43 10 Hybrid systems
00:39:15 11 See also
00:42:48 12 References
00:44:15 13 Bibliography
00:47:06 14 External links



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SUMMARY
=======
Sound can be recorded and stored and played using either digital or analog techniques. Both techniques introduce errors and distortions in the sound, and these methods can be systematically compared. Musicians and listeners have argued over the superiority of digital versus analog sound recordings. Arguments for analog systems include the absence of fundamental error mechanisms which are present in digital audio systems, including aliasing and quantization noise. Advocates of digital point to the high levels of performance possible with digital audio, including excellent linearity in the audible band and low levels of noise and distortion.Two prominent differences in performance between the two methods are the bandwidth and the signal-to-noise ratio (S/N). The bandwidth of the digital system is determined, according to the Nyquist frequency, by the sample rate used. The bandwidth of an analog system is dependent on the physical capabilities of the analog circuits. The S/N of a digital system may be limited by the bit depth of the digitization process, but the electronic implementation of conversion circuits introduces additional noise. In an analog system, other natural analog noise sources exist, such as flicker noise and imperfections in the recording medium. Other performance differences are specific to the systems under comparison, such as the ability for more transparent filtering algorithms in digital systems and the harmonic saturation and speed variations of analog systems.