No Mana — Above The Blue EP

2017

Progressive House, Downtempo, Experimetal

M4A ● 128 kbps ● 48 kHz ● 26,13 MB

MEGA

01	06:07	M00N
02	04:45	Static
03	05:31	Less Than Three
04	05:48	Constellations {ft. Winnie Ford}
05	02:26	Left in the Snow {ft. Mark Slotoroff}
06	04:18	Clear {ft. Zashanell}

2.0/5.1ch Audio Enconding on MediaCoder

Como devem saber, arquivos de áudio em DTS e AC-3 geralmente são muito grandes.
Mas a pergunta é: é possível (tentar) manter a qualidade do áudio em uma taxa de bits menor?
Na minha opinião, o melhor programa para encodar áudio, com base nas configurações de formato e taxa de bits, é o MediaCoder.

As you may know, audio files in DTS AC-3 are usually very large.
But the question is: is it possible to (try to) keep the audio quality at a lower bit rate?
In my opinion, the best program to encode audio based on the format and bitrate settings is MediaCoder.

Stereo channel
Format	Bitrate
LC-AAC	96 kbpsQA 160 kbpsMQ
HE-AAC	48 kbpsQA 96 kbpsMQ

5.1 channel
Format	Bitrate
LC-AAC	192 kbpsQA 320 kbpsMQ
HE-AAC	128 kbpsQA 192 kbpsMQ

^QA Qualidade Aceitável (Acceptable Quality);
^MQ Melhor Qualidade (Best Quality).

Chicane — Giants

2010

Trance, House, Electronica, Ambient

M4A ● 192 Kbps VBR ● 44.1 kHz ● 67,57 MB

► Minhateca ◄

01	06:05	Barefoot
02	05:52	Middledistancerunner {ft. Adam Young}
03	07:28	Come Back
04	03:45	What Am I Doing Here? (Part 1)
05	07:01	Giants
06	05:06	Poppiholla (5am)
07	05:38	So Far Out To Sea
08	04:32	Where Do I Start?
09	06:38	From Where I Stand
10	05:43	Hiding All The Stars
11	06:26	What Am I Doing Here? (Part 2) {ft. Lemar}
12	04:26	Titles

MP3 vs. M4A - comparing sound quality and file size

In this post, I made a comparison of sound quality and memory size between MP3 and M4A (HE-AAC - High Efficiency Advanced Audio Coding) files.

For this, I used two different songs and I converted both in MP3 and M4A formats, both set to 48 Kbps bitrate and 48 kHz sampling rate.

Gotye - Easy Way Out

Time: 01'57"

MP3, 48 Kbps @ 48 kHz - File Size: 748 KB

M4A, 48 Kbps @ 48 kHz - File Size: 704 KB

Rick Astley - Never Gonna Give You Up

Time: 03'33"

MP3, 48 Kbps @ 48 kHz - File Size: 1,25 MB

M4A, 48 Kbps @ 48 kHz - File Size: 1,23 MB

I have conclude that two songs converted to M4A format have a better sound quality than MP3 format, even though both were with the same bitrate and sampling rate, and M4A file is a little smaller than MP3 file.