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32bit output into 24bit capable soundcard. How bitdepth is converted i
amiti
post Feb 6 2013, 18:10
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When streaming an audio data of 32bit to a 24bit capable soundcard via ASIO, how does the hardware/drivers handle it? Are the excess bits truncated or dithered?

(I use ESI Juli@ souncard)
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amiti
post Feb 12 2013, 02:57
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Thanks for all the help and information.

QUOTE (IgorC @ Feb 6 2013, 20:03) *
http://en.wikipedia.org/wiki/Digital-to-analog_converter

QUOTE
Noise is ultimately limited by the thermal noise generated by passive components such as resistors. For audio applications and in room temperatures, such noise is usually a little less than 1 μV (microvolt) of white noise. This limits performance to less than 20~21 bits even in 24-bit DACs.


Theoretically then , would it be best to dither audio stream to 20-21 bits , depending on the noise floor of the specific audio hardware?
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Posts in this topic
- amiti   32bit output into 24bit capable soundcard. How bitdepth is converted i   Feb 6 2013, 18:10
- - IgorC   http://en.wikipedia.org/wiki/Digital-to-analog_con...   Feb 6 2013, 19:03
|- - db1989   QUOTE (IgorC @ Feb 6 2013, 18:03) http://...   Feb 6 2013, 19:07
|- - pdq   QUOTE (db1989 @ Feb 6 2013, 13:07) QUOTE ...   Feb 6 2013, 19:57
- - pdq   Do you know if the 32 bit data is integer or float...   Feb 6 2013, 19:03
- - benski   >> 8   Feb 6 2013, 19:29
- - db1989   QUOTE (pdq @ Feb 6 2013, 18:57) I think t...   Feb 6 2013, 20:22
- - DVDdoug   I suppose the details are up to the programmer, bu...   Feb 6 2013, 21:02
|- - pdq   QUOTE (DVDdoug @ Feb 6 2013, 15:02) With ...   Feb 6 2013, 21:43
|- - DVDdoug   QUOTE (pdq @ Feb 6 2013, 12:43) QUOTE (DV...   Feb 6 2013, 23:53
- - phofman   QUOTE (amiti @ Feb 6 2013, 19:10) When st...   Feb 6 2013, 23:16
- - Arnold B. Krueger   QUOTE (amiti @ Feb 6 2013, 12:10) When st...   Feb 7 2013, 12:18
- - 2Bdecided   See related thread... http://www.hydrogenaudio.org...   Feb 7 2013, 13:00
- - nu774   Simple right shift results in tiny negative DC off...   Feb 7 2013, 13:25
- - amiti   Thanks for all the help and information. QUOTE (I...   Feb 12 2013, 02:57
|- - saratoga   QUOTE (amiti @ Feb 11 2013, 20:57) Thanks...   Feb 12 2013, 04:57
- - phofman   I guess that is why dither is recommended for deci...   Feb 12 2013, 10:16
- - amiti   QUOTE (saratoga @ Feb 12 2013, 05:57) QUO...   Feb 12 2013, 14:28
|- - Arnold B. Krueger   QUOTE (amiti @ Feb 12 2013, 08:28) QUOTE ...   Feb 12 2013, 15:41
- - pdq   I'm afraid that you are completely missing the...   Feb 12 2013, 15:34


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