[sdiy] Through-zero FM - how much?

Ian Fritz ijfritz at comcast.net
Thu Oct 18 16:27:57 CEST 2018


Mattias —

I believe you are refering to the modulation index m ranging up to 8 or 10?  This is not what the OP asked. The modulation index is the change in carrier frequency divided by the modulation frequency.

Ian


> On Oct 18, 2018, at 6:48 AM, Mattias Rickardsson <mr at analogue.org> wrote:
> 
> IIRC it's around 8 or 10 if you want to end up in Yamaha FM land.
> 
> /mr
> 
> 
>> On Wed, 17 Oct 2018 at 18:54, <mskala at ansuz.sooke.bc.ca> wrote:
>> What's a good maximum modulation depth for a through-zero FM VCO
>> to support?  Five times the carrier frequency?  Ten?
>> 
>> -- 
>> Matthew Skala
>> mskala at ansuz.sooke.bc.ca                 People before tribes.
>> http://ansuz.sooke.bc.ca/
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