DS Forums

 
 

Sony 'Virtual Battery' technology


Reply
Thread Tools Search this Thread
Old 23-02-2014, 09:55
Soundbox
Forum Member
 
Join Date: Nov 2006
Location: The garden of earthly delights
Posts: 4,513

I read that Sony's new premium walkman and the PCM-D100 recorder use something called virtual battery technology on the headphone output. This is designed to make the sound quality better.

I can't find anything about it - anyone heard of it before?

I have the D100 recorder and it does sound good but there is nothing in the manual about it.
Soundbox is offline   Reply With Quote
Please sign in or register to remove this advertisement.
Old 23-02-2014, 11:37
Nigel Goodwin
Forum Member
 
Join Date: Apr 2006
Location: North Derbyshire
Posts: 41,794
I read that Sony's new premium walkman and the PCM-D100 recorder use something called virtual battery technology on the headphone output. This is designed to make the sound quality better.

I can't find anything about it - anyone heard of it before?
Never heard of it - but presumably it's nothing but marketing spin?.
Nigel Goodwin is offline   Reply With Quote
Old 23-02-2014, 12:29
chrisjr
Forum Member
 
Join Date: May 2004
Location: Reading
Posts: 27,926
I've seen "Virtual Battery" mentioned in other contexts. Basically referring to AC-DC power supplies where (so the claim goes) the DC side is especially well isolated from the AC side. Presumably to reduce noise and hum and other crap from the mains supply.

So making the device being powered perform as though battery powered when it truly would be totally isolated from the mains.
chrisjr is online now   Reply With Quote
Old 23-02-2014, 15:21
Soundbox
Forum Member
 
Join Date: Nov 2006
Location: The garden of earthly delights
Posts: 4,513
Thanks for the input. I found a little more about this from a Sony blog:


"The headphone amp incorporates a high-capacity, ultra-low impedance 0.33F (330000μF) electric double-layer capacitor (EDLC), equivalent to 750 times the capacitance of conventional capacitors. This stable power supply dramatically enhances the headphone power source, enabling high-quality audio to be reproduced even more faithfully."

May just be marketing but I am interested in such technology.
Soundbox is offline   Reply With Quote
Old 23-02-2014, 20:05
Nigel Goodwin
Forum Member
 
Join Date: Apr 2006
Location: North Derbyshire
Posts: 41,794
Thanks for the input. I found a little more about this from a Sony blog:


"The headphone amp incorporates a high-capacity, ultra-low impedance 0.33F (330000μF) electric double-layer capacitor (EDLC), equivalent to 750 times the capacitance of conventional capacitors. This stable power supply dramatically enhances the headphone power source, enabling high-quality audio to be reproduced even more faithfully."

May just be marketing but I am interested in such technology.
Just marketing hype - particularly for headphones where power requirements are only tiny.

Sticking a large capacitor across the power supply is hardly ground-breaking or new
Nigel Goodwin is offline   Reply With Quote
 
Reply




 
Forum Jump


All times are GMT. The time now is 16:52.