Re: [ARSCLIST] Non-RIAA preamp

[Eric Jacobs <ericj@xxxxxxxxxxxxxxxxxxx>]

On 10/12/06, don cox wrote:
> 
> On 10/09/06, phillip holmes wrote:
> > In the phase encode/decode discussion of RIAA, did anyone mention that
> > speed is critical? If the disk was recorded slow or fast, you'll have
> > a hard time getting proper frequency response. 
> 
> Playing at the wrong speed affects pitch, but not really frequency
> response.

Often overlooked is the fact that the dynamics change as well when
a recording is played back at the incorrect speed.  It is very
noticable in more extreme cases of speed change.  If you playback at 
half speed and then repitch the recording, it will sound "flatter" than 
if it were played back at the correct speed.

Has anyone tried to expand the dyanamics on a disc played back at 
half speed?

Eric Jacobs
Principal

The Audio Archive
tel: 408.221.2128
fax: 408.549.9867
mailto:EricJ@xxxxxxxxxxxxxxxxxxx