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Normalize M4a AAC (Itunes Ipod)

Normalize M4a AAC (Itunes Ipod)

AAC stands for “Advanced Audio Coding”, and is one of the so-called “lossy formats”, which means that to encode data removed.
In this case the AAC and M4a, AND INFORMATION basicament binary eliminate silence. As there is no real paerdida quality.

The AAC uses a variable bit rate (VBR), which also allows you to have a good sound quality.
This codec is intended for use of bandwidth and is based on removing redundancies of the acoustic signal compression as well as by the modified discrete cosine transform (MDCT), very similar to the MP3.

The AAC can achieve sampling rates of 96,000 samples per second (a CD drive 44 000), which is also very high quality.

For all this, is that the Mp3Doctor PRO 2 offers an option to normalize, equalize, er change pitch or tempo to marchivos AACy M4a format (iTunes compatible).

AAC is an audio encoding format is advanced and continuation of MP3 (ISO / MPEG Audio Layer-3) audio encoding bitrate level medium or high.
AAC The idea of the algorithm is the use of two primary coding strategies by reducing the number of data required to obtain a digital audio product quality. AAC sampling frequency of 8 Hz to 96 kHz channel number is 1 to 48. AAC using Modified Discrete Cosine Transform (MDCT) with blocks of length 2.048 points. AAC is more capable of encoding audio streams of complex pulses and square waves compared to MP3 or Misicam.

AAC uses modular coding method. Depending on the complexity of bede bit stream being encoded execution result and desired, the user can create profiles to define that tools must be used for the particular application. So the LD AAC encoding scheme linking the speech coding schemes and coding of high quality audio.

AAC is a format that was created to improve performance (quality / size) MP3 of getting a similar quality of an MP3 file in just 96kbps to 128kbps.
Currently, it is Apple flag format, present in both iTunes and on iPod, like its recent boom in the formats supported by portable players and mobile phones with multimedia. It has two formats: MPEG-2 Layer 4 (with. AAC) and MPEG-4 Layer 4 (with. AAC or. MP4).
AAC + (Plus AAC or HE AAC), is the logical evolution of AAC, which has the same relationship to the MP3PRO AAC to MP3: SBR process added allowing the use of two channels.

Working with the AAC audio format represents a better sound quality than many of the cases are distributed to different speakers perfectly defined in terms of the position to be occupied in an appropriate environment, plus the AAC audio format tends to occupy retail space that would occupy a MP3 audio format, which in the design of a DVD is to be known as Layer 3 audio type, which is widely used in the compilation of audio and video to the DVD film formation.

 

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