FFMPEG change Tone Frequency (Pitch Audio)












0














How can i change the Tone frequency.
This Example only pitch it by keeping the old tone frequency and only decrease the length of File.



For Example i have a constant 100 Herz tone (as mp3) and i want it to change 90 Herz



 ffmpeg -i 100h.mp3 -af atempo=100/90 90h.mp3


This Example not works for me, it sounds same



inputfile Mp3
outputfile Mp3










share|improve this question
























  • Keep duration the same?
    – Gyan
    Nov 19 '18 at 13:13










  • it doesn`t matter
    – dazzafact
    Nov 19 '18 at 13:34
















0














How can i change the Tone frequency.
This Example only pitch it by keeping the old tone frequency and only decrease the length of File.



For Example i have a constant 100 Herz tone (as mp3) and i want it to change 90 Herz



 ffmpeg -i 100h.mp3 -af atempo=100/90 90h.mp3


This Example not works for me, it sounds same



inputfile Mp3
outputfile Mp3










share|improve this question
























  • Keep duration the same?
    – Gyan
    Nov 19 '18 at 13:13










  • it doesn`t matter
    – dazzafact
    Nov 19 '18 at 13:34














0












0








0







How can i change the Tone frequency.
This Example only pitch it by keeping the old tone frequency and only decrease the length of File.



For Example i have a constant 100 Herz tone (as mp3) and i want it to change 90 Herz



 ffmpeg -i 100h.mp3 -af atempo=100/90 90h.mp3


This Example not works for me, it sounds same



inputfile Mp3
outputfile Mp3










share|improve this question















How can i change the Tone frequency.
This Example only pitch it by keeping the old tone frequency and only decrease the length of File.



For Example i have a constant 100 Herz tone (as mp3) and i want it to change 90 Herz



 ffmpeg -i 100h.mp3 -af atempo=100/90 90h.mp3


This Example not works for me, it sounds same



inputfile Mp3
outputfile Mp3







audio ffmpeg pitch






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 19 '18 at 13:44

























asked Nov 19 '18 at 12:24









dazzafact

9761025




9761025












  • Keep duration the same?
    – Gyan
    Nov 19 '18 at 13:13










  • it doesn`t matter
    – dazzafact
    Nov 19 '18 at 13:34


















  • Keep duration the same?
    – Gyan
    Nov 19 '18 at 13:13










  • it doesn`t matter
    – dazzafact
    Nov 19 '18 at 13:34
















Keep duration the same?
– Gyan
Nov 19 '18 at 13:13




Keep duration the same?
– Gyan
Nov 19 '18 at 13:13












it doesn`t matter
– dazzafact
Nov 19 '18 at 13:34




it doesn`t matter
– dazzafact
Nov 19 '18 at 13:34












2 Answers
2






active

oldest

votes


















1














Basic method is



ffmpeg -i 100h.mp3 -af asetrate=44100*0.9,aresample=44100 90h.mp3


where 44100 should be replaced with the input sample rate.






share|improve this answer





























    0














    finally this works by keeping also the audio length



     ffmpeg -i test.mp3 -af asetrate=44100*0.9,aresample=44100,atempo=1.1 output.mp3 





    share|improve this answer





















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      2 Answers
      2






      active

      oldest

      votes








      2 Answers
      2






      active

      oldest

      votes









      active

      oldest

      votes






      active

      oldest

      votes









      1














      Basic method is



      ffmpeg -i 100h.mp3 -af asetrate=44100*0.9,aresample=44100 90h.mp3


      where 44100 should be replaced with the input sample rate.






      share|improve this answer


























        1














        Basic method is



        ffmpeg -i 100h.mp3 -af asetrate=44100*0.9,aresample=44100 90h.mp3


        where 44100 should be replaced with the input sample rate.






        share|improve this answer
























          1












          1








          1






          Basic method is



          ffmpeg -i 100h.mp3 -af asetrate=44100*0.9,aresample=44100 90h.mp3


          where 44100 should be replaced with the input sample rate.






          share|improve this answer












          Basic method is



          ffmpeg -i 100h.mp3 -af asetrate=44100*0.9,aresample=44100 90h.mp3


          where 44100 should be replaced with the input sample rate.







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 19 '18 at 13:49









          Gyan

          30.9k22668




          30.9k22668

























              0














              finally this works by keeping also the audio length



               ffmpeg -i test.mp3 -af asetrate=44100*0.9,aresample=44100,atempo=1.1 output.mp3 





              share|improve this answer


























                0














                finally this works by keeping also the audio length



                 ffmpeg -i test.mp3 -af asetrate=44100*0.9,aresample=44100,atempo=1.1 output.mp3 





                share|improve this answer
























                  0












                  0








                  0






                  finally this works by keeping also the audio length



                   ffmpeg -i test.mp3 -af asetrate=44100*0.9,aresample=44100,atempo=1.1 output.mp3 





                  share|improve this answer












                  finally this works by keeping also the audio length



                   ffmpeg -i test.mp3 -af asetrate=44100*0.9,aresample=44100,atempo=1.1 output.mp3 






                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered Nov 19 '18 at 14:41









                  dazzafact

                  9761025




                  9761025






























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