<\/p>\n
As I introduced on my blog last time, I introduced an MP3 encoder in VinylStudio, so if you want to encode a hi-res (hi-res) sound source, compare the correlation coefficient sound quality to see which one is better, MP3 or AAC, which is a lossy compression format.<\/p>\n
<\/p>\n
1 About MP3 and AAC
\n2 About high resolution (high resolution) sound source to encode
\n3 MP3 and AAC specifications after encoding
\n4 Analysis\/evaluation by frequency analysis and correlation coefficient
\n5 Graph and evaluation of the correlation coefficient<\/p>\n
About MP3 and AAC
\nVarious information about whether MP3 is good or AAC is good such as the sound quality of lossy compression encoders have been introduced on the net. Among them, “MP3 vs AAC Sound Quality Comparison” (URL: http:\/\/kobo-aok. jp) I quoted the data of bitrate and upper limit frequency (high cutoff frequency) from ) and made a graphic.<\/p>\n
Conceptually, the higher the bitrate, the higher the upper frequency limit and the higher the sound quality. On the other hand, file size increases with bitrate. Looking at this graph, 160kbps is the limit between MP3 and AAC sound quality, and MP3 is higher than 160kbps, and AAC is higher than 160kbps, so it shows that the sound quality is higher.<\/p>\n
About Hi-Res (Hi-Res) sound source for encoding
\nRecorded in 1966 for the LONDON label, conducted by Bernstein Mozart Piano Concerto No. 15 in B flat major, K.450, 2nd movement, in which Bernstein himself plays piano with the Vienna Philharmonic.<\/p>\n
Bernstein’s piano playing is so good that he can be mistaken for a pianist, especially in the second movement.<\/p>\n
This album was recorded with FLAC on Vinyl Studio at a sample rate of 96khz and a bit depth of 24bit.<\/p>\n","protected":false},"excerpt":{"rendered":"