Re: [PATCH] Spectrum views enhancement & small eq fixes

On 27 Feb 2008, at 14:23, Raphaël Doursenaud wrote:
> The low frequency is more than inaccurate, actually the bands act a
> little higher (as far as 1/3 octave) and 31.5 and 50Hz bands *doesn't
> act at all* (as reported in bug #1397685).
> I've not been able yet to understand the code behind as it seems  
> pretty
> tied to the hdeq.

Yeah, it is, I didn't want to run two lots of expensive DSP code, so I  
reused the data from the EQ.

at 48k and under is very inaccurate, with higher sample rates it's  
better.

It might be worth implementing the lower 4 or 5 bands with a dedicated  
filter and envelope tracker.

>> From what I remember, I just read the ISO spec for EQ displays and
>> implemented what it says.
>
> Is there a way to get an hand on it? I'd be very interested to read  
> it.

I borrowed a copy from a big university reference library, but I've  
since moved and don't have easy access anymore.
The source code might have the BS/ISO ref. number in a comment.

- Steve
-------------------------------------------------------------------------
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Studio 2008.
http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/