adamdea;577568 Wrote: > I am waiting to be shot down in flames but wouldn't that have a dynamic > range of 140db but 1 bit resolution ?
I think the dynamic range in that case is undefined, as you only have absolute amplitude to talk about, but yes that's the idea. And you can in fact have 1-bit DACs if they are internally oversampled to a very high rate. Most actually are some form of that internally, i.e. ∆∑ converters, although newer DACs are usually something like 4-bit converters at the DA stage, which might run internally at several MHz . 1-bit stored data streams even exist, i.e. DSD. And there are now 1-bit "DACs" that don't even convert to analog but drive a switched amplifier directly with a logic signal. Amazingly, with the required analog filter this works fine - essentially you can trade higher sample rate for fewer bits per sample to maintain the same effective dynamic range (at the low frequencies of interest), while gaining better conversion accuracy (higher SNR, lower distortion). -- seanadams ------------------------------------------------------------------------ seanadams's Profile: http://forums.slimdevices.com/member.php?userid=3 View this thread: http://forums.slimdevices.com/showthread.php?t=82050 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/audiophiles
