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Bit rate \/ Sampling rate<\/p>\n
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Bit rate :
\nthe amount of data processed per unit of time, which is used to indicate how much information can be processed and sent\/received per second, such as
\nkbps.
\nSampling rate (sampling rate\/sampling frequency) :
\nrepresents the amount of sample data (frequency\/frequency of occurrence?) per unit of time when converting a digital signal to an analog signal.
\n\u30fb 44.1kHz or 48kHz
\nThat’s how it is …<\/p>\n
Fountain<\/p>\n
Bit per second (bit per second) is a unit of data transfer rate (bit rate in JIS information processing terminology). It is defined as the number of bits that have passed (ie transferred) a virtual or physical point in the data transfer path per second.<\/p>\n
\u25b6 \ufe0e https:\/\/ja.wikipedia.org\/wiki\/ Bits per second
\nSampling rate (sample rate) is sampling, which is a process necessary to convert analog waveforms, such as voice, into digital data, and is the sampling rate per unit of time. The commonly used unit is Hz.<\/p>\n
Also called sample rate or sample rate.<\/p>\n
\u25b6 \ufe0e https:\/\/ja.wikipedia.org\/wiki\/Sampling rate
\n\u2764\ufe0e3, what is the standard file format?
\nThis will come in handy when creating your own data, so it’s worth knowing.<\/p>\n
*
\nIf it’s a CD, even if you create a larger file with a 44.1 kHz<\/p>\n
* iTunes is a
\nAAC file format with a
\n256 kbps bit rate
\nsample rate
\n5~10MB<\/p>\n
It’s standard…<\/p>\n
So the sample size (number of bits) is not shown in the compressed file, so there is no comparison by the number of bits, but it seems that Wav files and CD sound sources have a quality sound superior to compressed files.<\/p>\n
It is easy to understand when compared to the bitrate on the WAV file side.<\/p>\n
* iTunes sound source purchase file example<\/p>\n
hello Adele
\nHello Adele
\nBit rate: 256 kbps Sampling frequency: 44.1
\nkHz
\nCCA
\n9.8MB<\/p>\n
Sia-Viva
\nSia Alive
\nBit rate: 256 kbps Sampling frequency: 44.1
\nkHz
\nCCA
\n8.9MB<\/p>\n
Spicy Red Chili Getaway
\nRed Hot Chili Getaway Rate
\nbits: 256kbps
\nSampling frequency: 44.1 kHz
\nCCA
\n8.4MB<\/p>\n
Original WAV-min file
\nBy the way, the one I created uncompressed with Protools from the original sound source file is the one shown in
\nnext figure.<\/p>\n
adela hello mp3
\nBit rate: 2304kbps
\nSample size: 24 bits Sampling rate: 48
\nkHz
\nWAV
\n63.7MB<\/p>\n
Also, when I encoded Adele Hello to MP3 with iTunes,
\nbit rate: 256 kbps \u2192 160 kbps Sampling rate: 44.1
\nkHz
\nAAC \u2192 MP3
\n9.8MB \u2192 5.9MB
\n.<\/p>\n
So I feel like MP3, 160kbps and 44.1kHz are the breaking lines where the deterioration isn’t as noticeable.<\/p>\n
WAV files are a backup instead of a listen<\/p>\n
Typically, bit rate: 256 kbps, sample rate: 44.1 kHz, AAC is more than enough.<\/p>\n","protected":false},"excerpt":{"rendered":"