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Understanding PDM Digital Audio

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Understanding PDM Digital Audio Thomas Kite, VP Engineering Audio Precision, Inc. Table of Contents Introduction ........................................ ........................................ ........................................ ...................... 3. Quick 3. PCM ........................................ ........................................ ........................................ ................................... 3. Noise 4. Oversampling.

Understanding PDM Digital Audio 3 Introduction PDM stands for pulse density modulation. However, it is really better summarized as “oversampled 1-bit audio”, as it is nothing more than a high sampling rate, single-bit digital system. If one increased the sample rate of audio CDs by a large factor, and reduced the wordlength from 16 bits to ...

  Digital, Modulation

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