On Oct 31, 2018, at 15:43, Gregory Avedissian <avedis...@gmail.com> wrote:
> Is it safe to do something as simple as having the script go to /var/snd > and run: > for i in *.wav ; do sox --norm=-5 "$i" /tmp/"$i" && cp /tmp/"$i" "$i" ; done > > Oh yeah, there will be rm /tmp/"$i" in there, too. Just noticed that. > > I ran a quick test, and it seems to work. Seems too easy. Am I missing > something? Reprocessing already-imported audio this way will likely kill waveform display in rdlibrary(1). This is because (last I looked) sox(1) does not output fully BWF-compliant WAV files (in particular, the LEVL chunk needed for generation of the visual waveform). You should however be able to achieve a similar result with full BWF compatibility by using rdconvert(1). (Do ‘man 1 rdconvert’ to get documentation). That said however, I’d strongly second Robert Jeffrares’s recommendation that this be handled as part of the broadcast chain rather than by changing the gain structure of Rivendell. -5 dBFS leaves very little headroom to work with, and rewriting audio can cause quality degradation (especially if MPEG Layer II format is involved). Cheers! |----------------------------------------------------------------------| | Frederick F. Gleason, Jr. | Chief Developer | | | Paravel Systems | |----------------------------------------------------------------------| | A room without books is like a body without a soul. | | -- Cicero | |----------------------------------------------------------------------|
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