Re: Sound editing & sonogram software on PC

[Walter Knapp <>]

Lang Elliott wrote:
> Steve:
> 
> But is it a Log 2 scale, rather than a Log 10 scale? In Log 2, there is a
> doubling of frequencies on the vertical scale: 500, 1000, 2000, 4000, 8000,
> 16000 kHz. In a Log 10, it goes 10, 100, 1000, 10,0000 Hz.
> 
> A Log 10 scale will not produce the right result. It must be a Log 2 scale.
> 
> Also, I use Macs so I guess I can't use Gram.

Lang, if it's log 2 you want, Spark XL's sonogram appears to be that. 
It's doubling each interval, or seems to be. Though it does not do your 
choice of frequencies as a default. And it is a Mac program, though a 
lot to pay for just the sonogram.

Walt




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