On Thu, May 27, 2004 at 08:54:54AM -0700, R Parker wrote: > > --- Paul Winkler <pw_lists@xxxxxxxxxx> wrote: > > On Thu, May 27, 2004 at 08:04:25AM -0700, R Parker > > wrote: > average level. > > > > > > If these spikes aren't clips, maybe I can > > normalize > > > and close the level gap between the spikes and the > > > average signal. I'll try that but suspect it won't > > do > > > the job. > > > > Normalizing won't change the relative levels of the > > spikes > > and the average at all. > > Ah, yes of course you're right. Are there two types of > normalization; A. adjusts everything relatively, B. > moves the average? Normalization is just simple amplification by a constant factor. The factor is calculated so that the highest peak in the normalized audio will be at some user-determined target level (typically, the target defaults to "maximum", e.g. 32767 for signed 16-bit audio... or sometimes a dB or two below maximum, I guess to avoid clipping DACs). So if you think about it, normalization is always both A and B :-) -- Paul Winkler http://www.slinkp.com
