Tests done by Leif SM5BSZ have demonstrated that the Delta 44, one of the best sound cards around, when used in its 24-bit mode, gives about 18 usable bits of amplitude resolution. The rest is noise. I am sure that if the same test were performed on a 16-bit card, that would give certainly less than 16 bits of resolutions.
So the answer is, yes, there is a point in using a 24-bit card instead of 16-bit one. Only do not expect to have a dynamic range of 144 dB... 73 Alberto I2PHD ------------------------------------- Peter Martinez wrote: >>From G3PLX: > > I am just starting to do some serious tests with my new 24-bit Firebox. With > the audio input of a channel short-circuit, if I analyse the statistics of > the 24-bit data, I find the bottom 8 bits are ALWAYS random. In fact the > bottom 9-10 bits are random. > > This tells me there is no point at all in having 24-bit audio. I might just > as well stay with 16-bits. > > Has anyone here done any rigorous tests comparing 16 and 24-bit audio and > found any difference? Like patching the code to mask off the bottom 8 bits > completely, or replacing the bottom 8 bits with random data. Maybe someone > has added a checkbox to turn this sort of test feature on and off and see > what, if any, is the difference in the speaker. > > 73 > Peter _______________________________________________ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
