On 2/20/20, To ny <[email protected]> wrote: > The sample is the best example since the thumps are quite soft and just a > little louder than the noise.
Use peak level detector instead of rms one. Also reduce window size too. > If all the three thumps and the voice would be left in the output, that > would be great. > > I'll run your command and see what comes out. > > Ideally, it would be, if the thumps and voice would have some space between > them during playback (of the output file), like three seconds apart and > little bit of silence at the beginning. At the end silence isn't necessary. > > Ffplay i don't have compiled but using the silenceremove arguments with > ffmpeg removes everything up until right before the two thumps with > threshold set at -38dB. The first thump is removed unfortunately. The > silence between the two thumps and my voice unfortunately isn't removed. > > At -37dB only my voice is left and none of the thumps are unfortunately left > in. > > Just for clarification... In the whole recording is no absolute silence. > Throughout the recording is noise of around -46dB. This is what i call > "silence". > > > ________________________________ > Van: ffmpeg-user <[email protected]> namens Ted Park > <[email protected]> > Verzonden: donderdag 20 februari 2020 08:44 > Aan: FFmpeg user questions <[email protected]> > Onderwerp: Re: [FFmpeg-user] silenceremove use > > The attachment in your first reply went through fine, I can see it. But it > is too simple, I mean I can remove silence in it pretty well with > % ffplay Downloads/sample.wav -af > "silenceremove=start_periods=1:start_threshold=-30dB" > But I assume you’re having more trouble with the original file because > there’s occasional noise in the “silence” you want to remove, and the > silence isn’t just at the beginning. Something more representative of the > file you’re working with would be more helpful. > >> The first command i copied directly from a forum post. >> The recording on my phone doesn't have a noise or sound that exceeds >> -20dB until 10 minutes 47 seconds. >> >> The output file left by the first command has the first 2,5 seconds >> missing and starts directly with a sound. Where in the recording >> on my phone that sound starts at 2,5 seconds. >> >> The second command as it seems left an output file that sounds >> like it plays at twice the speed. Coincidentally it's about half >> the size and duration. But everything seems to be still there >> and nothing is removed. > > I was confused by this at first since it doesn’t seem consistent with what > you described before but is this the result when the sample you sent us is > used with the same commands? > >> Unfortunately i can't send a more extensive logging because it seems >> when -loglevel or -v is used i get no output in console at all. > > No output at all is weird, but did you set -loglevel $LEVEL where LEVEL is > quiet, panic, fatal, error, warning, info, verbose, debug, or trace? > _______________________________________________ > ffmpeg-user mailing list > [email protected] > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > [email protected] with subject "unsubscribe". > _______________________________________________ > ffmpeg-user mailing list > [email protected] > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > [email protected] with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
