{"id":1901,"date":"2020-09-12T15:35:24","date_gmt":"2020-09-12T15:35:24","guid":{"rendered":"http:\/\/mp4gain.com\/mp4gain\/?p=1901"},"modified":"2020-09-12T15:35:24","modified_gmt":"2020-09-12T15:35:24","slug":"samplerate-what-is-sample-rate","status":"publish","type":"post","link":"https:\/\/mp4gain.com\/mp4gain\/samplerate-what-is-sample-rate\/","title":{"rendered":"Samplerate, what is sample rate"},"content":{"rendered":"<p>The sampling frequency is the time that results from the time between two samples. It is given in samples per second (S \/ s).<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" src=\"https:\/\/www.researchgate.net\/profile\/Robert_Johnston20\/publication\/309718589\/figure\/fig1\/AS:680041646137344@1539145971090\/Resetting-the-Sampling-Rate-according-to-a-Period-of-Disturbance-Signal.png\" alt=\"Sampling Rate\" width=\"445\" height=\"347\" \/><\/p>\n<p>The level of the sampling frequency is a criterion for the reproducibility of the frequency of the sampled signal. The closer the sampling times are, the better the signal can be reproduced.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" src=\"https:\/\/www.themusictelegraph.com\/imgdata\/themusictelegraph_com\/201903\/2019030703254534.jpg\" alt=\"Sampling rate\" width=\"352\" height=\"180\" \/><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_81 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/mp4gain.com\/mp4gain\/samplerate-what-is-sample-rate\/#Relationship_between_frequency_and_sampling_frequency\" >Relationship between frequency and sampling frequency<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/mp4gain.com\/mp4gain\/samplerate-what-is-sample-rate\/#Audio_sampling_frequencies\" >Audio sampling frequencies<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Relationship_between_frequency_and_sampling_frequency\"><\/span>Relationship between frequency and sampling frequency<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>For example, if an analog signal is sampled once per millisecond (ms), the sample rate is 1 kHz and the sample rate is 1000 samples per second. If the sampled signal has a frequency of 1 kHz, the signal is sampled once per period. It cannot be played. If, on the other hand, the frequency of the signal is 100 Hz, the signal is sampled ten times with the same sample rate. Therefore, the signal is easily reproducible. Therefore, the sampling frequency must be in a certain relation to the frequency of the signal. This relationship is through the given sampling theorem. Accordingly, the reproduction of the signal requires a sampling frequency that is at least twice the frequency of the signal. This applies to sine-type signals for their 1st harmonic, but not to square wave or pulse signals.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Audio_sampling_frequencies\"><\/span>Audio sampling frequencies<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>In the case of voice transmission over ISDN with a maximum frequency range of 4 kHz, the sampling frequency is 8 kHz, which corresponds to a sampling interval of 125 \u00b5s. For audio with a maximum frequency range of 20 kHz, the sampling frequency is 44.1 kHz (22.67 \u00b5s) and 48 kHz (20.83 \u00b5s). For high-quality multi-channel audio, the sample rate can be up to 192 kHz. Much higher values \u200b\u200bare found for video and HDTV. For digital video, this results in a 6.5 MHz bandwidth for the luminance signal, a sampling frequency of more than 13 MHz and a sampling interval of 74 ns. The sample rate for HDTV is even higher with 74 MHz and a sample rate of 13.5 ns.<br \/>\nIn the case of pulse-shaped signals, the sampling frequency must be many times greater than its fundamental oscillation, since otherwise important pulse parameters cannot be determined. If the sample rate is many times higher than the theoretically required sample rate, we are talking about oversampling.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The sampling frequency is the time that results from the time between two samples. It is given in samples per second (S \/ s). The level of the sampling frequency is a criterion for the reproducibility of the frequency of the sampled signal. The closer the sampling times are, the better the signal can be &hellip; <a href=\"https:\/\/mp4gain.com\/mp4gain\/samplerate-what-is-sample-rate\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Samplerate, what is sample rate&#8221;<\/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":[42665,18798,42661,42662,42663,42664,18736,18784,18776,42653,42646,18771,18737,9258,42660,9260,18789,18788,18742,9273,39079,18746,18749,42647,39078,9280,9275,42652,9287,18770,18753,9257,9262,18755,39082,18787,18741,39084,39083,42648,39098,18785,18758,39096,18768,39088,9357,9354,39089,39087,9351,39086,42650,9353,39090,9259,39091,9407,9411,9415,9409,9413,9410,9408,39093,42651,18732,18727,18730,18728,18729,18731,39092,18766,39100,39099,18777,18778,39107,18795,18791,9424,18792,18803,18752,18800,18799,9468,39111,18801,39110,9475,9471,39116,18804,39121,9491,9261,9497,9493,15579,42654,42655,42656,39097,18738,18740,18750,18764,18759,42649,18781,18802,42659,42658,42657],"class_list":["post-1901","post","type-post","status-publish","format-standard","hentry","category-audio-video","tag-audacity-change-sample-rate-without-resampling","tag-change-sample-rate-pro-tools-session","tag-change-sample-rate-without-changing-pitch","tag-change-sample-rate-without-changing-pitch-logic","tag-change-sample-rate-without-changing-speed","tag-change-sample-rate-without-resampling","tag-changing-sample-rate-after-recording","tag-col_sample_rate_per_tree","tag-over-sample-rate","tag-preamp-sample-rate","tag-pro-tools-sample-rate","tag-sample-dropout-rate","tag-sample-rate-after-downsampling","tag-sample-rate-and-bit-depth","tag-sample-rate-and-bit-depth-windows-10","tag-sample-rate-and-buffer-size","tag-sample-rate-audio-post","tag-sample-rate-audio-post-production","tag-sample-rate-before-mastering","tag-sample-rate-bit-depth","tag-sample-rate-bit-depth-ableton-live","tag-sample-rate-bit-depth-cd","tag-sample-rate-bit-depth-headphones","tag-sample-rate-bit-depth-quality","tag-sample-rate-bit-depth-reddit","tag-sample-rate-bit-depth-windows","tag-sample-rate-bit-rate","tag-sample-rate-bytes-per-second","tag-sample-rate-conversion-pro-tools","tag-sample-rate-digital-out","tag-sample-rate-during-mastering","tag-sample-rate-for-audio","tag-sample-rate-for-audio-itunes","tag-sample-rate-for-microphone","tag-sample-rate-for-podcast","tag-sample-rate-for-post-production","tag-sample-rate-for-recording","tag-sample-rate-for-recording-vocals","tag-sample-rate-for-spotify","tag-sample-rate-for-video","tag-sample-rate-for-voice-over","tag-sample-rate-frames-per-second","tag-sample-rate-from-fft","tag-sample-rate-greyed-out","tag-sample-rate-greyed-out-windows-10","tag-sample-rate-in-ableton","tag-sample-rate-in-audacity","tag-sample-rate-in-audio","tag-sample-rate-in-fl-studio","tag-sample-rate-in-garageband","tag-sample-rate-in-logic","tag-sample-rate-in-logic-pro-x","tag-sample-rate-in-music","tag-sample-rate-in-pro-tools","tag-sample-rate-into-pro-tools","tag-sample-rate-logic-pro-x","tag-sample-rate-of-an-audio-system-dictates","tag-sample-rate-of-audio","tag-sample-rate-of-cd","tag-sample-rate-of-microphone","tag-sample-rate-of-mp3","tag-sample-rate-of-spotify","tag-sample-rate-of-vinyl","tag-sample-rate-of-wav-file","tag-sample-rate-on-arduino","tag-sample-rate-on-blu-ray","tag-sample-rate-on-iphone","tag-sample-rate-on-logic","tag-sample-rate-on-logic-pro","tag-sample-rate-on-mac","tag-sample-rate-on-reaper","tag-sample-rate-on-recording","tag-sample-rate-on-spotify","tag-sample-rate-out-of-tune","tag-sample-rate-per-buffer","tag-sample-rate-per-channel","tag-sample-rate-per-second","tag-sample-rate-per_class","tag-sample-rate-pro","tag-sample-rate-pro-recording","tag-sample-rate-pro-tools","tag-sample-rate-pro-tools-error","tag-sample-rate-pro-tools-first","tag-sample-rate-pull-up","tag-sample-rate-pull-up-down","tag-sample-rate-to-bit-rate-conversion","tag-sample-rate-to-frame-rate","tag-sample-rate-to-frequency","tag-sample-rate-to-frequency-calculator","tag-sample-rate-to-kbps","tag-sample-rate-to-record","tag-sample-rate-to-seconds","tag-sample-rate-to-time","tag-sample-rate-versus-bandwidth","tag-sample-rate-vs-bandwidth","tag-sample-rate-vs-bandwidth-sdr","tag-sample-rate-vs-bit-depth","tag-sample-rate-vs-bitrate","tag-sample-rate-vs-buffer-size","tag-sample-rate-vs-frame-rate","tag-sample-rate-vs-frequency","tag-sample-rate-vs-latency","tag-sample-rate-vs-resolution","tag-sample-rate-vs-symbol-rate","tag-sample-size-dropout-rate","tag-sampling-rate-as","tag-sampling-rate-at","tag-sampling-rate-by","tag-sampling-rate-cut-off","tag-sampling-rate-from-bandwidth","tag-sampling-rate-from-signal","tag-sampling-rate-per-cycle","tag-sampling-rate-up","tag-sampling-rate-with","tag-sampling-rate-with-audio","tag-sampling-rate-with-oscilloscope"],"yoast_head":"<!-- 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