本文详细介绍了AAC音频帧的样本数量，包括AHE-AACv1或v2中每通道包含2048个PCM样本（另有特殊模式为1920个样本用于如DAB+数字广播等场景）、AAC-LC每通道每帧1024个PCM样本以及AAC-LD/ELD每通道每帧480或512个PCM样本。
A HE-AAC v1 or v2 audio frame contains 2048 PCM
samples per channel (there is
also one mode with 1920 samples per channel but this is only for special purposes
such as DAB+ digital radio).
These bits/frame figures are average figures where each AAC frame generally has a different
size in bytes. To calculate the same for AAC-LC just use 1024 instead of 2048 PCM samples per
frame and channel.
For AAC-LD/ELD it is either 480 or 512 PCM samples per frame and channel.
also one mode with 1920 samples per channel but this is only for special purposes
such as DAB+ digital radio).
These bits/frame figures are average figures where each AAC frame generally has a different
size in bytes. To calculate the same for AAC-LC just use 1024 instead of 2048 PCM samples per
frame and channel.
For AAC-LD/ELD it is either 480 or 512 PCM samples per frame and channel.
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