Audiotool board archive

Limiter behaves differently on playback and mix-down

Jordi Moragues · started 2019-01-21 23:01 · updated 2020-04-02 11:47

The limiter seems to behave a bit differently when playing back an arrangement and when a mix-down is being generated. An audio capture of the arrangement being played back shows no clipping on the waveform. But an imported download from a published track from the same identical arrangement will show clipping in the waveform. There will be also small differences in the amplitude of both waveforms.

Comments (7)

2019-01-21 23:08 · 2019-01-21

I remember this being talked about a while ago, about the differences in the sound - arrangement and mix-down.
Andre told that time it's something to do with the soundcard.
Like: The arrangement and the publishing are technically identical, but the audio stream might get manipulated on your side after you listen to the mix-down.

I may be wrong.

2019-01-21 23:35 · 2019-01-21

Yes, you're right. I think I found the topic where this was discussed: https://www.audiotool.com/board/bug_reports/limiter_can_t_be I've found other puzzling differences between mix-down and playback. For example, I have a fast fade-in at the beginning of my latest track done by automating the volume of the Master Output. On the mix-down, the audio appears earlier than on the playback, as if the fade-in would happen sooner.

2020-03-31 19:56 · 2020-03-31

I played the same arrangement from within Studio and from the published mix-down straight from the track page, no downloads. I captured both playbacks in Audacity and compared the wave forms. Playback from Studio shows no clipping. Mix-down playback from the website shows clipping and a slightly increased amplitude. I'll try to attach screenshots.

2020-03-31 20:00 · 2020-03-31

The bottom stereo pair is the captured playback from within the Studio. The top stereo pair is the exact same arrangement played from the track page (published mix-down). The bottom wide image is a zoomed in version of the start of the audio shown in the top square image, so that you can compare the peaks and amplitudes better.

2020-04-01 00:07 · 2020-04-01

Maybe related: the published version has undergone a lossy compression.

2020-04-02 11:47 · 2020-04-02

As far as I know, my Studio sessions are always 44,1 kHz.