[linux-audio-user] various questions (long)

Richard Seymour nutate at speakeasy.net
Mon Mar 10 11:59:00 EST 2003


Richard Seymour wrote:

> luis jure wrote:
>
>> el Sat, 8 Mar 2003 14:01:32 +0400
>> Guy Daniel CLOTILDE <guy.clotilde at wanadoo.fr> escribió:
>>
>>  
>>
>>> On Tue, 4 Mar 2003 12:38:32 +0000
>>> Tim Hall <tim at glastonburymusic.org.uk> wrote / a écrit:
>>>
>>>   
>>>
>>>> each beat lasts 60/bpm seconds,
>>>>     
>>>
>>> I don't understand. Is it 60 bpm/s ?
>>>
>>>   
>>
>>
>>
>> no, it's 60/bpm
>>
>> you know bpm means "beats per minute", so the duration of a beat is:
>>
>> 60   (seconds in a minute)
>> ---
>> bpm  (number of beats in a minute)
>>
>> at a metronome marking of 60, each beats is a second long (60/60).
>> the higher the mm, the shorter each beat: for mm=120 each beat is 0.5
>> seconds (60/120); for lower mm, beats are longer, for mm=40 each beat is
>> 1.5 seconds (60/40)
>>  
>>
> The way I look at the word "per" is to just turn it into a divisor 
> sign, so that a 60 bpm song would be:
>
> 60   beats
>    --------
>     minute
>
> a 120 bpm song is twice as fast, and hence has twice as many beats in 
> a minute, etc.
>
> -Rich
>
> explanatory PS: 60/bpm would equal 60/beats/minute == 60 minutes/beat 
> which would actually be 1/60 beat/minute , read as one sixtieth of a 
> beat per minute.  At least that's the way I would read it...
>
replying to my own post... I think I completely misread the thread.  
Don't mind my pedantry.

-Rich




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