Rockbox General > Rockbox General Discussion

The iPod Poor Bass Response

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senab:
@PHK Brasil: Can you outline how you did the test please? Method, equipment, etc, etc.

I'd like to repeat the test using the hardware EQ instead. Obviously only the shelf filters work on the hardware eq, and the lowest cutoff frequency is 80hz, therefore I wouldn't expect as good an output; but the hardware eq has no effect on battery life therefore would be preferable.

:D

Chronon:
It's probably a lot more efficient in terms of battery usage, but it will still consume some battery.  You don't get gain for free.  



--- Quote from: Homer Simpson ---Lisa! Get in here.
[Lisa walks in, chuckling nervously]
In this house, we obey the laws of thermodynamics!
--- End quote ---

 ;D

senab:
The hardware EQ is built into the Wolfson DAC, therefore shouldn't require anymore battery power afaik. A dev will know better than me though  ;)

mamboman:
usually even if the function is implemented in the hardware, it will still take more processor cycles thus using a little more battery. but seriously i think the part which uses the most power is still the HDD and the LCD. i don't think the DAC matters as much.

just gotten a headphone amp from Mseedlabs and listening through the dock line-out makes a world of a difference for me at the same listening levels.

senab:
No, it won't use ANY CPU cycles because the hardware EQ not implemented in software, the DAC implements it. The CPU, HDD, LCD and every other component have no idea about it lol.

A headphone amp is a viable fixed location solution, but with portability in mind, it doesn't really work ;)

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