{"id":2910,"date":"2020-12-23T22:41:00","date_gmt":"2020-12-23T22:41:00","guid":{"rendered":"http:\/\/mp4gain.com\/mp4gain\/?p=2910"},"modified":"2020-12-23T22:41:00","modified_gmt":"2020-12-23T22:41:00","slug":"audio-encoding-and-processing-2","status":"publish","type":"post","link":"https:\/\/mp4gain.com\/mp4gain\/audio-encoding-and-processing-2\/","title":{"rendered":"Audio encoding and processing."},"content":{"rendered":"

Audio encoding and processing.<\/strong><\/p>\n

\"MP3<\/p>\n

Parameters that affect digital sound quality Minimum and maximum sound quality.<\/p>\n

\"Audio<\/p>\n

My grandfather was listening to a gramophone. My father’s youth turned to music coming from the speaker of a reel-to-reel tape recorder. The heyday and decline of cassette recorders fell upon my youth. My son is growing up in the age of digital audio. To keep up to date and give my son a good “sound”, I decided to find out what determines the quality of the digital audio signal reproduction.<\/p>\n

I talked to my music loving friends. He did an information search on the Internet. As a result, I came to the conclusion that high-quality sound can be achieved in the digital age by choosing the right 7 basic elements of modern music centers:<\/p>\n

the format in which the music is recorded;
\nplayer;
\ndigital to analog converter;
\namplifier;
\nacoustics;
\ncables;
\nfood.<\/p>\n

Below I will share my observations and conclusions on achieving high quality sound recordings in digital formats.<\/p>\n

Lyrical digression, experts don’t need to read.<\/p>\n

In a nutshell, I will explain where digital sound comes from. During the recording process, the microphone converts mechanical vibrations (the sound itself) into an analog electrical signal. An analog signal is, in the most general case, similar to a sinusoid that has been familiar to all of us since high school. In the age of analog sound, it was this signal that was recorded on various media and then played back.<\/p>\n

With the development of microprocessor technology, it became possible to record and store audio information in digital formats. These formats are obtained through an analog-to-digital conversion (ADC) process.<\/p>\n

During the ADC, the analog signal (our high school sine wave) becomes a discrete one (in other words, it is cut into pieces). In the next stage, the discrete signal is quantized, that is, each resulting segment of the sinusoid is assigned a digital value. In the third step, the quantized signal is digitized, ie encoded in the form of a sequence of 0 and 1. With respect to digital sound recording, the information about the amplitude and frequency of the sound is digitized.<\/p>\n

To record and store digital audio information, digital audio formats are used. The audio format is understood as a set of requirements for the digital representation of audio data.<\/p>\n

When it comes to sound quality, digital formats are divided into 3 categories:<\/p>\n

Formats without additional compression (CDDA, DSD, WAV, AIFF, etc.);
\nLossless compressed formats (FLAC, WavPack, ADX, etc.);
\nLossy compression formats (MP3, AAC, RealAudio, etc.).<\/p>\n

High-quality sound is obtained when playing music saved in formats of the first and second category. In the formats of the third category, to reduce the amount of data, part of the information is deliberately excluded. For example, information about hidden frequencies.<\/p>\n

Latent frequencies are those that are outside the range of perception of the average person: 20 Hz – 22 kHz. For audiophiles, this range is wider due to individual psychophysiological characteristics.<\/p>\n

To complete your home audio library, you must select records saved in files with the following extensions:<\/p>\n

* .wav, * .dff, * .dsf, * .aif, * .aiff are uncompressed sound files;
\n* .mp4, * .flac, * .ape, * .wma are the most common lossless compressed audio files.
\nFrom history. They say that the first experiments on the preservation of sound were carried out by the ancient Greeks. They tried to keep the sound in amphorae. It looked something like this: words were spoken into the amphora and it was quickly sealed. Unfortunately, none of those records have survived to this day.<\/p>\n","protected":false},"excerpt":{"rendered":"

Audio encoding and processing. Parameters that affect digital sound quality Minimum and maximum sound quality. My grandfather was listening to a gramophone. My father’s youth turned to music coming from the speaker of a reel-to-reel tape recorder. The heyday and decline of cassette recorders fell upon my youth. My son is growing up in the … Continue reading “Audio encoding and processing.”<\/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":[45907,45908,45813,45906,45798,45797,45796,45844,45795,45791,57337,45805,45804,45880,45803,45790,45802,45808,45811,45812,45814,45809,45810,57338,45816,45817,45822,45823,45824,45829,45832,45831,45830,45825,57340,45787,6891,45835,45834,45840,45846,57341,45855,45793,45856,47375,57342,45859,45872,57343,45873,57344,45876,45879,45886,45881,45885,45884,57345,45794,45792,45788,45850,57346,45890,45789,45893,45819,47735,45898,45897,57347,45860,45862,45848,45891,45858,45894,45899,23008,45807,45815,29703,45821,45820,45892,45799,45800,47733,45887,45900,45852,45870,45871,45827,45828,45867,45837,45838,45836,45842,45843,45841,45845,45901,45853,57339,45854,45861,45851,45863,45864,45865,45869,45868,47734,45875,45878,45883,45882,45806,45896,45895,45902,45903,45905],"class_list":["post-2910","post","type-post","status-publish","format-standard","hentry","category-audio-video","tag-24-bit-audio-encoding","tag-32-bit-audio-encoding","tag-audio-cd-encoding","tag-audio-encoding-128kbps","tag-audio-encoding-aac","tag-audio-encoding-ac3","tag-audio-encoding-ac3-not-supported","tag-audio-encoding-ac3-not-supported-huawei","tag-audio-encoding-algorithms","tag-audio-encoding-and-decoding","tag-audio-encoding-android","tag-audio-encoding-base64","tag-audio-encoding-benchmark","tag-audio-encoding-bit-rate","tag-audio-encoding-bit-rate-quality","tag-audio-encoding-bitrate","tag-audio-encoding-bitrate-android","tag-audio-encoding-channels","tag-audio-encoding-check","tag-audio-encoding-code","tag-audio-encoding-compression","tag-audio-encoding-conversion","tag-audio-encoding-converter","tag-audio-encoding-data","tag-audio-encoding-data-size","tag-audio-encoding-dts","tag-audio-encoding-eac3-not-supported","tag-audio-encoding-error","tag-audio-encoding-examples","tag-audio-encoding-ffmpeg","tag-audio-encoding-file","tag-audio-encoding-flac","tag-audio-encoding-format-ac3-not-supported","tag-audio-encoding-format-eac3-not-supported","tag-audio-encoding-format-pcm","tag-audio-encoding-formats","tag-audio-encoding-formats-explained","tag-audio-encoding-g-726","tag-audio-encoding-g711ulaw","tag-audio-encoding-hikvision","tag-audio-encoding-ios","tag-audio-encoding-iphone","tag-audio-encoding-library","tag-audio-encoding-linear16","tag-audio-encoding-lossless","tag-audio-encoding-meaning","tag-audio-encoding-meaning-translation","tag-audio-encoding-mp2l2","tag-audio-encoding-pcm","tag-audio-encoding-pdf","tag-audio-encoding-phone","tag-audio-encoding-python","tag-audio-encoding-quality","tag-audio-encoding-rate","tag-audio-encoding-sample","tag-audio-encoding-sample-rate","tag-audio-encoding-sampling-frequency","tag-audio-encoding-schemes","tag-audio-encoding-settings","tag-audio-encoding-software","tag-audio-encoding-standards","tag-audio-encoding-techniques","tag-audio-encoding-techniques-in-multimedia","tag-audio-encoding-time","tag-audio-encoding-transcoding","tag-audio-encoding-types","tag-audio-encoding-using-ffmpeg","tag-audio-encoding-vs-decoding","tag-audio-encoding-vs-format","tag-audio-encoding-webm","tag-audio-encoding-wiki","tag-audio-encoding-youtube","tag-audio-format-encoding-mp4","tag-audio-format-mp3-encoding","tag-audio-input-encoding","tag-audio-track-encoding","tag-audio-ulaw-encoding","tag-audio-video-encoding","tag-audio-watermarking-encoding","tag-best-audio-encoding-format","tag-bluetooth-audio-encoding","tag-c-audio-encoding","tag-digital-audio-encoding","tag-dolby-audio-encoding-utility","tag-dvd-audio-encoding","tag-dvd-flick-audio-encoding-takes-forever","tag-encoding-audio-and-video","tag-encoding-audio-and-video-bitesize","tag-encoding-audio-over-ip","tag-encoding-audio-signal","tag-encoding-audio-with","tag-encoding-in-audio-files","tag-encoding-of-audio-signals","tag-encoding-on-audio","tag-esp32-audio-encoding","tag-ffmpeg-audio-encoding-example","tag-ffmpeg-audio-encoding-options","tag-google-audio-encoding","tag-gpu-audio-encoding","tag-gsm-audio-encoding","tag-handbrake-audio-encoding","tag-hdmi-audio-encoding","tag-hikvision-audio-encoding-type","tag-how-audio-encoding-works","tag-how-does-audio-encoding-work","tag-is-audio-encoding","tag-ivms-4200-audio-encoding-error","tag-java-audio-encoding","tag-lav-audio-matrix-encoding","tag-mobile-audio-encoding-formats-include","tag-mp4-audio-encoding","tag-netflix-audio-encoding","tag-normal-audio-encoding","tag-obs-audio-encoding","tag-opus-audio-encoding","tag-output-audio-encoding","tag-perceptual-audio-encoding","tag-qt-audio-encoding","tag-record-audio-encoding","tag-rtp-audio-encoding","tag-set-audio-encoding-bitrate","tag-video-audio-encoding-settings","tag-voip-audio-encoding","tag-wav-audio-encoding","tag-webrtc-audio-encoding","tag-zoom-audio-encoding"],"yoast_head":"\nAudio 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Linkedin\",\"sameAs\":[\"https:\/\/www.linkedin.com\/in\/ricardoariaszorrilla\/\"],\"url\":\"https:\/\/mp4gain.com\/mp4gain\/author\/mp4gain\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Audio encoding and processing. - mp4gain.com","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/mp4gain.com\/mp4gain\/audio-encoding-and-processing-2\/","og_locale":"en_US","og_type":"article","og_title":"Audio encoding and processing. - mp4gain.com","og_description":"Audio encoding and processing. Parameters that affect digital sound quality Minimum and maximum sound quality. My grandfather was listening to a gramophone. My father’s youth turned to music coming from the speaker of a reel-to-reel tape recorder. The heyday and decline of cassette recorders fell upon my youth. 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