On 10/3/18, Michael Koch <astroelectro...@t-online.de> wrote: > Am 03.10.2018 um 10:43 schrieb Paul B Mahol: >> On 10/2/18, Michael Koch <astroelectro...@t-online.de> wrote: >>> I'm still experimenting with the ultrasonic converter. Converting from >>> one file to another file works without problems: >>> >>> C:\Users\mkoch\Desktop\Ultrasonic Live>c://ffmpeg/ffmpeg -i >>> test_15kHz.mp3 -f la >>> vfi -i aevalsrc="sin(12000*2*PI*t):c=stereo:s=44100" -filter_complex >>> "[0]volume= >>> 1,highpass=f=12000,highpass=f=12000,highpass=f=12000,highpass=f=12000[sound];[so >>> und][1]amultiply,lowpass=f=10000,lowpass=f=10000,lowpass=f=10000,lowpass=f=10000 >>> " -y out.mp3 >>> >>> (no console output, because this is working fine) >>> >>> As the next step, I want to hear the output live on the speakers. I did >>> use exactly the same command line as above, but I replaced ffmpeg by >>> ffplay and I omitted the output file. At the end of the console output >>> is an error message. Can't ffplay handle two inputs? Why doesn't ffplay >>> accept the command line that works fine with ffmpeg? >> You should really, really use mpv, it supports multiple inputs, and >> complex filtergraph (unlike ffplay) >> >> mpv test.mp3 -lavfi-complex >> "aevalsrc=sin(5000*2*PI*t):c=stereo:s=44100[sine],[aid1]highpass=f=5000,highpass=f=5000,highpass=f=5000,highpass=f=5000[sound],[sound][sine]amultiply,dynaudnorm=m=100,lowpass=f=1000,lowpass=f=10000,lowpass=f=10000,lowpass=f=10000,asplit[ao],showspectrum=scale=log:size=hd720:color=channel[vo]" > > oh no, I don't want to learn a new command line syntax only to solve > this simple problem. > I have a long ffmpeg command line that's working fine when writing the > output to a file. Is there really no easy way to send the output to the > speakers instead?
It is very easy syntax to learn, you can send output directly to speakers with ffmpeg too but that is extremly limited funcionality. _______________________________________________ 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".