On 27-8-2018 15:18, Michael Koch wrote:
> ffmpeg -f lavfi -i sine=f=1000:d=5 -f lavfi -i sine=f=1000:d=5
> -filter_complex "[0:a]adelay=0.0[d0],[1:a]adelay=0.5[d1],[d0][d1]amix" -y
> test2.mp3
Since delaying audio by zero doesn't make sense, you can shorten the command
like this:
ffmpeg -f
Am 27.08.2018 um 15:00 schrieb Paul B Mahol:
On 8/27/18, Michael Koch wrote:
In the first example I have two identical 1kHz sine sources. The first
source is delayed by 0.5ms (which means 180DEG phase shift), and then both
channels are mixed. This works as expected, the result is silence.
On 8/27/18, Michael Koch wrote:
> In the first example I have two identical 1kHz sine sources. The first
> source is delayed by 0.5ms (which means 180DEG phase shift), and then both
> channels are mixed. This works as expected, the result is silence.
>
> ffmpeg -f lavfi -i sine=f=1000:d=5 -f
In the first example I have two identical 1kHz sine sources. The first
source is delayed by 0.5ms (which means 180° phase shift), and then both
channels are mixed. This works as expected, the result is silence.
ffmpeg -f lavfi -i sine=f=1000:d=5 -f lavfi -i sine=f=1000:d=5
-filter_complex
