[FFmpeg-user] aevalsrc question

Adam Puckett signalsender103 at gmail.com
Mon Dec 19 01:26:55 EET 2016

On 12/18/16, Nicolas George <george at nsup.org> wrote:
> L'octidi 28 frimaire, an CCXXV, Adam Puckett a écrit :
>> Some time ago I posted a question about sweeping from one frequency to
>> another using aevalsrc and the t parameter of the expression. My
>> command line was something like:
>> ffmpeg -f lavfi -i aevalsrc=sin(262*2^^(t/10)*2*PI*t):d=10 test.ogg
>> and I'm still hearing higher frequencies than the desired output. I'm
>> also trying lots of other variations in the formula, and I'm trying to
>> do it without loading and storing commands.
>> What am I doing wrong and how an I fix this?
> You have a suspicious double circumflex. If I fix it, the command works
> for me.
> Regards,
> --
>   Nicolas George
When you say it "works" for you (I have to double the ^ to escape on
Windows), does it produce this file?
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