[FFmpeg-user] How to generate sine-wave mp3 test tone files in one-step?

[jasonsu]

Hi.

I want to generate mp3 files containing sine-wave test tones.

They need to be

        44.1KHz sampled
        192Kbps bitrate
        30sec duration
        normalized to 0Db

I'd like to do it in one cmd line step.

I've been having a heck of a time putting it together properly.

I _think_ this works

        ffmpeg -f lavfi \
         -i "sine=frequency=1000:sample_rate=44100:duration=30" \
         -acodec mp3 \
         -b:a 192k \
        test.mp3

        ffmpeg-normalize -v -f -u \
         --dir \
         --acodec mp3 \
         --extra-options "-b:a 192k" \
         --level 0 --max \
        test.mp3

I end up with 2 files

        test.mp3
        normalized/test.mp3

Is there a simpler/correct single cmd line to do this? and only generate/keep 
one file?

Thanks.
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