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Re: semitone spacing

To: AUDITORY@xxxxxxxxxxxxxxx
Subject: Re: semitone spacing
From: Bob Masta <audio@xxxxxxxxxxx>
Date: Sat, 18 Mar 2006 10:04:15 -0500
Delivery-date: Sat Mar 18 10:13:48 2006
In-reply-to: <20060316161547.14097.qmail@web8709.mail.in.yahoo.com>
Priority: normal
Reply-to: Bob Masta <audio@xxxxxxxxxxx>
Sender: AUDITORY Research in Auditory Perception <AUDITORY@xxxxxxxxxxxxxxx>

On 16 Mar 2006 at 16:15, niky prabhu wrote:
    
>   I wanted information regarding the exact formula used for the semitone filter spacing.

I'm not sure exactly what you are looking for.  Western musical
semitones are spaced 2^(1/12) apart.  The reference is normally
the A above Middle C, which is specified as 440 Hz exactly.    
To find each higher semitone, multiply by 2^(1/12) once for each
semitone.  To find each lower semitone, divide by 2^(1/12) instead.


Best regards,

Bob Masta

audioATdaqartaDOTcom

References:
- semitone spacing
  - From: niky prabhu

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