Re: mp3gain vs madplay

Bruce Fitzsimons wrote:

> Rob Leslie wrote:
>
>> On Mar 31, 2004, at 12:01 AM, Bruce Fitzsimons wrote:
>>
>>> I'm about to launch into a debugging session to see why mp3gain 
>>> (http://mp3gain.sourceforge.net/ ) and madplay 0.15.1b don't seem to 
>>> be playing together (no pun intended). I thought I'd ask if anyone 
>>> has used the two together yet, or if there is another linux-based 
>>> replaygain processor (for adding replaygain to existing mp3s) that 
>>> is more reliable.
>>>
>>> map3gain does appear to be adding a tag, as it finds it again if 
>>> rerun over the same file.
>>
>
>
> I'll see what improvements I can come up with.

I've put together a quick test based off minimad and the 
gain_analysis.[ch] from the mp3gain source. Although it uses a Pink 
Noise 64.82 dB value (I think) rather than the mandated 83 dB. Sigh.

I will turn it into a command line tool, is there any interest in such a 
thing? Any better suggestions for the replaygain algo (the math looked a 
bit daunting)?

Out of interest Rob, do you know why I would have had to multiply the 
libmad output by 2^15 (after mad_f_todouble) to make it equivalent to 
the (slightly hacked) lame output?

/Bruce