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nope, I see it just fine. And to answer the thread topic question, yes and no. A digital mixer will use both a DAC and an ADC (Digital to analog converter, analog to digital converter, respectively). Things in binary are just a series of pulses (known as a pulsetrain). This is more commonly known as a series of "on" and "off" commands strung together (or ones and zeroes if you wanna get even less accurate).
What a digital mixer will do is take the analog sound output by the audio source (in your case, I assume a turntable) and using the ADC, convert the wave into a pulsetrain. The neat thing about this is once it's in binary form, you can use DSP (digital signal processing) effects, such as time-stretching without pitch modulation.
Even if you decide to not use a DSP effect, the audio signal is still digitized. However, as stated earlier, no human ear is capable of hearing a binary stream (indeed, no ear is capable of hearing a binary stream, period. Unless you're from another planet and have the ability to hear electronic pulsetrains. But that's a different matter). So on its' way out of the mixer and into, say, the amplifier, it will go through a DAC and convert the binary stream into an analog waveform that can be heard through speakers, or anything else that creates compressions in the air based on the amplifier's signal.
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