Re: [ARSCLIST] Lossy compression losing quality (was Re: [ARSCLIST] Pristine Audio and the Milllennials . . .)

[Frank Strauss <fbsdmd@xxxxxxxxx>]

On Dec 14, 2007 2:17 PM, Don Cox <doncox@xxxxxxxxxxxxxx> wrote:

> On 11/12/07, Howard Friedman wrote:
>
> > Hello, Richard,
> >
> > My God, the WAV file is more than 10 times larger than the MP3 file!
> > Where does the loss occur, treble or bass or both? How much? Can I
> > hear the difference?
>
> The loss is supposed to be all the sounds that you can't hear because
> another instrument is playing more loudly at the same time.
>
> Whether you can hear the difference depends on how much compression has
> been applied and how good your playback eqipment is.
>
>
> To get a visual equivalent, try saving a photo from Photoshop (or
> similar) as JPG files with various quality settings. The principles of
> MP3 and JPG are essentially the same. You will see that at high quality
> settings, very little is lost, while at the lowest quality the picture
> is wrecked. The same happens with lossy audio (or video).
>
> Regards
> --
> Don Cox
>


We all know what the files sound/look like at high quality and low quality
settings; if you must be in between high and low though, the trick is
deciding which setting you can live with.



-- 
Frank B Strauss, DMD