[Cryptography] Sony to Offer ‘Premium Sound’ Memory Card

John Ioannidis ji at tla.org
Sat Feb 21 23:05:37 EST 2015


On Sat, Feb 21, 2015 at 7:08 PM, Joseph Ashwood <ashwood at msn.com> wrote:
> -----Original Message----- From: Henry Baker
> Subject: Sony to Offer ‘Premium Sound’ Memory Card
>
>> Sony to Offer ‘Premium Sound’ Memory Card
>
>
>
> On the consumer side it is certainly a waste of money, but on the recording
> side it may not be. You would be amazed at some of the lengths that are gone
> through to get the cleanest possible recording. A single degree change in
> temperature can actually change the recording. Radio interference is a big
> source. But also variations in power consumption can be a headache. The card
> at least claims to address both.
>
> Just to give you an idea how far we sometimes have to go. I have actually
> run a system where the powered microphone was plugged into its own separate
> car battery, the amplifier/ADC it was attached to had its own separate
> battery, the USB hub was powered by its own battery, all connected to a
> laptop that was to be run only from battery during recording. All this
> because the [bleep bleep bleep bleep bleep] AC in the building was noisy,
> the laptop-hub cable although shielded was becoming a broadcast antennae,
> the amplifier/ADC is always extremely sensitive, the cable to the mic was
> working as a reception antennae for the laptop-hub broadcast, and the mic
> always has variable resistance consuming variable power inducing noise in
> the amplifier. I would gladly have paid the $160 for this card on that day,
> might have been able to eliminate half the setup.
>
> Is it ideal? No. But it may be a needed solution for some environments.
>                    Joe

RFI is a problem in your analog path, not the digital storage medium.
If you don't understand that, contact me, I have lots of expensive
stuff to sell you.

/ji


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