{"id":3950,"date":"2021-08-11T00:18:55","date_gmt":"2021-08-11T00:18:55","guid":{"rendered":"http:\/\/mp4gain.com\/mp4gain\/?p=3950"},"modified":"2021-08-11T00:18:55","modified_gmt":"2021-08-11T00:18:55","slug":"relationship-between-human-audible-range-and-sample-rate","status":"publish","type":"post","link":"https:\/\/mp4gain.com\/mp4gain\/relationship-between-human-audible-range-and-sample-rate\/","title":{"rendered":"Relationship between human audible range and sample rate"},"content":{"rendered":"

Relationship between human audible range and sample rate<\/strong><\/p>\n

\"Audio<\/p>\n

The two main factors that indicate the performance of an audio interface are the number of sample bits and the sample rate.<\/p>\n

\"sample<\/p>\n

Of these, the number of sample bits is expressed as a numeric value, such as 16 bits or 24 bits, and last time I introduced that the dynamic range differs based on the difference in the number of sample bits. In other words, we have also used graphs to show that the difference in the number of bits is the precision with which very quiet sound can be expressed.
\nSo what about the other sample rate? The sampling frequency is also called the sampling frequency, but the unit is usually kHz. The most commonly used are 32 kHz, 44.1 kHz, 48 kHz, and 96 kHz.
\nThe Roland audio interfaces introduced last time, such as the UA-1X and UA-3FX, as well as the UA-1D and UA-20, are models that support 44.1 kHz and 48 kHz.<\/p>\n

UA-1X dal_4007_s.jpg dal_4002_s.jpg UA-20
\nUX-1X UA-1D UA-3FX UA-20
\nAs many of you will know, CDs, which can be said to be representative of digital audio, are compatible with 44.1 kHz and with 44.1 kHz, that clear sound can be expressed. But why is it 44.1 kHz? Here is a clear medical basis. It is the relationship with the human audible range, that is, the audible frequency band.
\nGenerally, the highest pitch that can be expressed is said to be half the sample rate. In other words, 44.1 kHz is up to 22.05 kHz and 48 kHz is up to 24 kHz. On the other hand, the range that humans can hear is said to be 20 Hz to 20 kHz for healthy people. Therefore, according to the theory, recording of 20 kHz or more does not make sense because humans cannot perceive it. However, considering a small margin, it is the CD standard that can be expressed up to 22.05kHz. However, the reason it became a medium number like 44.1kHz is that when CD was standardized, the VTR was used for digital recording, and the TV’s horizontal and vertical sync signal was 44.1kHz., It is said which was by using it.<\/p>\n

\u25a0 Can humans really detect sounds above 20 kHz?<\/p>\n

However, if you can’t really hear more than 20 kHz, there is no point in picking up frequencies above that. But is that true?
\nThe answer is clear from the appearance of DVD-Audio, which has a sound quality superior to that of CDs. Yes, it is certainly difficult to recognize 20 kHz or more as a single signal, but when signals of various frequencies, such as music, are expressed in an overlapping way, the atmosphere of the sound that can be heard depends on whether 20 kHz or more is being output. o No. It makes a difference. When I listen to a CD and an analog record, sometimes I feel that the sound of the record is better, but it can also be said that this is the result of not setting an upper limit on the frequency in the case of analogs.
\nHere, let’s experiment a bit to see if it is true that “the highest pitch that can be expressed is half the sample rate.”<\/p>\n

48 kHz 96 kHz 48 kHz 96 kHz
\nWhite noise expressed at a sampling frequency of 48 kHz (left) and a sampling frequency of 96 kHz (right). In the case of 48 kHz, the sound is output only up to about 24 kHz, but in the case of 96 kHz, all the sound is output flat. In the two graphs above, the horizontal axis was only up to 48kHz, so it looked completely flat at 96kHz, but when the horizontal axis is up to 96kHz and expressed in exponential notation, it is 48k, which is almost the same as the theoretical . value. You can see exactly what comes out.
\nThe graph shown here shows the extent to which frequency is expressed by creating white noise that mixes evenly from low to loud sounds at 48 kHz and 96 kHz. If you look at this, you can see that the 48 kHz sample rate is up to about 24 kHz and the 96 kHz sample rate is up to 48 kHz. However, the two charts on the right side have an index on the horizontal axis, so it might not seem like much of a difference, but it does have a double number range.
\nYou can say that this is the difference between 48kHz and 96kHz.<\/p>\n

\u25a0 If you want to make a CD last, do you need 24-bit \/ 96 kHz specifications?<\/p>\n

By the way, some people may have some doubts about the story so far? Yes, I would like to digitally record analog recordings and tapes and eventually convert them to a CD, but if the CD itself is 16-bit \/ 44.1 kHz, the specs, such as 24-bit \/ 96 kHz, are above spec. Is it unnecessary?
\nIt certainly may not be necessary if you burn the recording as is to CD without any processing.<\/p>\n","protected":false},"excerpt":{"rendered":"

Relationship between human audible range and sample rate The two main factors that indicate the performance of an audio interface are the number of sample bits and the sample rate. Of these, the number of sample bits is expressed as a numeric value, such as 16 bits or 24 bits, and last time I introduced … Continue reading “Relationship between human audible range and sample rate”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[27872,24553,62451,27884,27883,33005,27885,27881,27878,27836,27882,62450,27887,27886,27824,27869,27870,27876,27877,27879,27874,27892,27888,27890,27889,27895,27894,42112,27896,62704,27900,50512,27901,27893,51146],"class_list":["post-3950","post","type-post","status-publish","format-standard","hentry","category-audio-video","tag-audio-compression-can-be-used-for","tag-does-audio-compression-help","tag-does-zoom-compression-audio","tag-how-audio-compression-is-carried-out-in-mp3","tag-how-audio-compression-works","tag-how-audio-file-compression-works","tag-how-compression-audio","tag-how-does-audio-compression-ratio-work","tag-how-does-audio-compression-work","tag-how-does-lossless-audio-compression-work","tag-how-does-lossy-audio-compression-work","tag-how-to-do-audio-compression","tag-how-to-hear-audio-compression","tag-how-to-use-audio-compression","tag-is-lossless-audio-compression","tag-what-are-audio-compression-format","tag-what-are-the-audio-compression-techniques","tag-what-does-audio-compression-do","tag-what-does-audio-compression-do-in-camtasia","tag-what-does-audio-compression-mean","tag-what-is-audio-compression","tag-what-is-audio-compression-in-camtasia","tag-what-is-audio-compression-in-multimedia","tag-what-is-audio-compression-sonos","tag-what-is-audio-compression-used-for","tag-when-to-use-audio-compression","tag-when-was-audio-compression-invented","tag-which-audio-compression","tag-which-is-the-best-audio-compression-format","tag-which-lossy-method-for-audio-compressi-on-is-responsible","tag-who-invented-audio-compression","tag-why-audio-compression","tag-why-audio-compression-is-needed","tag-why-is-audio-compression-important","tag-why-is-digital-audio-compression"],"yoast_head":"\nRelationship between human audible range and sample rate - mp4gain.com<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mp4gain.com\/mp4gain\/relationship-between-human-audible-range-and-sample-rate\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Relationship between human audible range and sample rate - mp4gain.com\" \/>\n<meta property=\"og:description\" content=\"Relationship between human audible range and sample rate The two main factors that indicate the performance of an audio interface are the number of sample bits and the sample rate. 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