Quote:
Originally Posted by business_kid
I would investigate what's already being done in the hardware. There are dsps in every soundcard, so gain control is trivial. 0dB sounds like a poor choice of normalising values There's a standard of ~200mV p-p that is used for most equipment things will match to. Make it too small, and you lose data, because A/Ds are fixed resolution
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~200mV -- that sounds like signal level for RCA type analog connections. The "line level" ports for these cables were typically 500mV at 50K or 100K ohms for full modulation
currently I just use the Realtec DAC that is built in on my mobo together with Linux ALSA . it would be interesting to find a sound card that had the capability to adjust to a nominal level, -- "0db is considered full modulation and that is generally preferred as the proper setting.
i don't see how a track could be adjusted to 0db in a sound card though: you have to look at the whole signal: from start to finish and adjust the peak to the 0db level. otherwise you are going to get the hated compression of the sound level....
this is relatively easy to do using Audacity -- they have that function under "amplify" on their menu. the trouble of course is that you have to proceed one item at a time.....