Le nonidi 29 frimaire, an CCXXV, Muhammad Faiz a écrit :
> The formula is wrong.
> Consider sin(262*2^(t/10)*2*PI*t).
> phase, ph(t) = 262 * 2^(t/10) * 2 * PI * t
> angular freq (in radians/s), w(t) = dph(t)/dt = 262 * 2 * PI *
> (2^(t/10) + log(2)/10 * 2^(t/10) * t)
> freq(t) = 262 * (2^(t/10) + log(2)/10 * 2^(t/10) * t)
> so, at t = 10, freq(10) = 262 * (2 + log(2) * 2) = 887 Hz

Oh, good catch. I should have remembered this task needed a primitive
function, not just a multiplication.

Regards,

-- 
  Nicolas George

Attachment: signature.asc
Description: Digital signature

_______________________________________________
ffmpeg-user mailing list
ffmpeg-user@ffmpeg.org
http://ffmpeg.org/mailman/listinfo/ffmpeg-user

To unsubscribe, visit link above, or email
ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".

Reply via email to