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SBR 技 术 由 4 个 模 块 组 成<br />

分 别 是 :<br />

谱 线 解 码 模 块 .<br />

分 析 综 合 滤 波 器 模 块 .<br />

HF 产 生 模 块 .<br />

HF 调 整 模 块 .<br />

AAC Core<br />

Decoder<br />

Bitstream<br />

Payload<br />

Deformatter<br />

HE-AACv1 比 特 流<br />

Bitstream<br />

Parser<br />

Huffman<br />

Decoding &<br />

Dequantization<br />

Analysis<br />

QMF Bank<br />

HF Generator<br />

Envelope<br />

Adjuster<br />

Synthesis<br />

QMF Bank<br />

Output<br />

PCM Samples

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