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ビットレート is defined as the number of data points used to approximate the true wave form. Obviously, the higher the number, the more accurately the wave form is approximated.

例えば、the current de facto standard is to encode MP3 at 192 kbps, or 192,000 bits per second. The CODEC takes the bitrate into consideration as it writes each frame to the bitstream. If the bitrate is low, the irrelevancy and redundancy criteria will be measured harshly, and more subtlety will be stripped out, resulting in a lower-quality product. If the bitrate is high, the codec will be applied with leniency, and the end result will sound better. Of course, the file size of the end product corresponds directly with the bitrate.

192 kbps は固定ビットレートの(CBR) モードの例です。Constant Bit Rate (CBR) encoding maintains the same bitrate throughout an encoded file. All that means is no matter what, there will always be 192 kbps written into the bitstream. If your audio has moments of silence, it is captured and encoded at that rate, as are areas of very diverse frequencies (that might sound better if encoded to a higher bitrate).

可変ビットレート(VBR)MP3 encoding method that's used when file size is not an issue. As it's name implies, the bitrate is varied throughout the file. The codec guesses which parts could benefit from more bits per second, and which can use less. The result is a much higher quality file.

AVS4YOU® プログラムを使用して、保護されたマテリアルをコピーすることはできません。著作権を所有するマテリアルや著作権の所有者からコピーの許可を受けたマテリアルをコピーする際にこのソフトウェアを使用できる場合があります。

AVS4YOUはAscensio System SIAの登録商標です。Intel および Core 2 Duo は、Intel Corporation の登録商標です。AMD および Athlon X2 は、Advanced Micro Devices, Inc. の登録商標です。Windows 11/10/8.1/8/7/Vista/XP は、Microsoft Corporation の登録商標です。その他の商標は、それぞれの所有者に帰属します。