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Audio and Video Talk
Digital
So what do you actually listen for in a DAC?
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<blockquote data-quote="amirm" data-source="post: 836972" data-attributes="member: 20181"><p>Sure.</p><p></p><p>The first two graphs have the wrong vertical scale in that they truncate the bottom of the graph (stop at -100 dB). </p><p></p><p><img src="http://www.audiodesignguide.com/DSC1/THD_1KHx_1V6rms.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>The last graph does have the right scale:</p><p></p><p><img src="http://www.audiodesignguide.com/DSC1/THD_SNR_v2.6.png" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>The main tone there is at -10 dB so we need to add 10 dB to all the distortion spikes. This makes the tallest one which is the third harmonic about -110 dB. That should be inaudible. </p><p></p><p>More tests need to be run to fully characterize it but based on what is there, it seems like good performance.</p></blockquote><p></p>
[QUOTE="amirm, post: 836972, member: 20181"] Sure. The first two graphs have the wrong vertical scale in that they truncate the bottom of the graph (stop at -100 dB). [IMG]http://www.audiodesignguide.com/DSC1/THD_1KHx_1V6rms.jpg[/IMG] The last graph does have the right scale: [IMG]http://www.audiodesignguide.com/DSC1/THD_SNR_v2.6.png[/IMG] The main tone there is at -10 dB so we need to add 10 dB to all the distortion spikes. This makes the tallest one which is the third harmonic about -110 dB. That should be inaudible. More tests need to be run to fully characterize it but based on what is there, it seems like good performance. [/QUOTE]
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Audio and Video Talk
Digital
So what do you actually listen for in a DAC?
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