Re: [ARSCLIST] ELP Turntable (was historical stylus rake angles)

[Don Cox <doncox@xxxxxxxxxxxxxx>]

On 08/01/05, George Brock-Nannestad wrote:

> Now, the noise (impulse) signal we hear that originates from a groove
> surface has been severely processed by a) the preamplifier, b) the
> amplifier, c) the output amplifier, and d) the loudspeakers. Any of
> those components may have insufficient headroom and/or bandwidth for
> the task, because a minute surface imperfection reproduced by a
> velocity-sensitive system has a huge level and a very high frequency
> content - above 30 kHz is quite relevant. This means a smearing in
> time of the noise pulse by any uncorrected band limiting, and that
> makes it very audible.

Yes, a click in principle has components at all frequencies (from zero
to infinity). In practice, it is of course band limited by the
equipment.

Whether you are going to digitize the signal, or just listen in analog,
there is no substitute for good engineering at every stage.

I think we still have much to learn about the engineering of a sound
reproduction system. Commercial pressures can confuse the issues.

Regards
--
Don Cox
doncox@xxxxxxxxxxxxxx