Timeline for Does the audio an instrument emits above 20 KHz affect how the instrument sounds?
Current License: CC BY-SA 4.0
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| S Mar 31, 2023 at 11:48 | history | mod moved comments to chat | |||
| S Mar 31, 2023 at 11:48 | comment | added | Doktor Mayhem♦ | Comments have been moved to chat; please do not continue the discussion here. Before posting a comment below this one, please review the purposes of comments. Comments that do not request clarification or suggest improvements usually belong as an answer, on Music: Practice & Theory Meta, or in Music: Practice & Theory Chat. Comments continuing discussion may be removed. | |
| Mar 31, 2023 at 8:40 | comment | added | Lazy | @ojs Why should I be confused about digital audio? Because I do not use the terminology you prefer? Turntables have nothing to do with digital audio, it’s just that the supposed benefits of ultrahigh frequency range are usually advocated by either turntable fanatics or people selling suff for turntable fanatics (of course completely ignoring that anything from a PVC disc above 14KHz is simply distortion). | |
| Mar 31, 2023 at 8:19 | comment | added | ojs | @Lazy well, you brought up the subject of turntables and it seems that you're a bit confused about digital audio so it might be a good time to learn. | |
| Mar 31, 2023 at 8:14 | comment | added | Lazy | @ojs Call it what you will, but what makes you believe I’m looking for information here? It is you who brought up this topic under my answer. | |
| Mar 30, 2023 at 21:17 | comment | added | ojs | @Lazy "quantization along the time dimension" is usually called just sampling, and the "the nonuniqueness of representation" is known as warping effect. If you use the standard terminology you'll find a lot of information and might learn how the filtering is involved. | |
| Mar 30, 2023 at 19:44 | comment | added | Lazy | @ojs Bit depth is a result of quantization along the elongation dimension, sample rate a result of quantization along the time dimension. The first leads to noise in the sense of rounding error, the second leads to noise in the sense of nonuniqueness of representation for not rate/2 bandwidth limited signals. | |
| Mar 30, 2023 at 19:08 | comment | added | ojs | @Lazy I agree that the question is not about digital audio but the subject often comes up with these unusually high sample rates, and usually it's not about few KHz but twice or four times the usual rate. Quantization noise however is related to bit depth, not sample rate. Steep lowpass filters have different problems. | |
| Mar 30, 2023 at 17:02 | comment | added | Lazy | @ojs The benefit of slightly higher sampling rate than necessary is to give more head space for the necessary low pass filter, required to avoid quantization noise. Having a few KHz more space for your low pass filter to operate may in fact make an audible difference. But this question is not about digital audio. | |
| Mar 30, 2023 at 16:29 | comment | added | ojs | The more technically minded audio marketing people usually claim that the benefit of higher sample rates is that filtering artifacts are shifted outside the hearing range. | |
| Mar 30, 2023 at 15:22 | comment | added | Todd Wilcox | I agree that ultrasonic content in the air has no affect when it’s heard by a human. It’s possible that ultrasonic signal levels in audio electronics could contribute to intermodulation distortion and generate new non-ultrasonic artifacts. But I wouldn’t expect that to be a factor 99% of the time and only a very minor factor that other 1% of the time. | |
| Mar 30, 2023 at 12:53 | history | answered | Lazy | CC BY-SA 4.0 |