We store everything uncompressed. We can use audio stored for later editing without cascading compression losses.
What's the down side to compressed storage? Stacking compression has possibly unknowable consequences. Storage and playback is straightforward without coding or decoding. If you have compressed files in your automation and then you decode that on playback and stream that audio you are decompressing it again. Every pass through lossy compression makes the audio quality worse and worse. What's the upside of compression? A 10TB disk is ~$200. Most radio station libraries aren't that big, even when PCM storage is used. So, what's the gain? When drives were expensive, you could make a case for compression of audio. I just don't see an imparitive now. We record everything that is broadcast at our station 24/7/365. We do that with Apple Lossless Compression. It statistically saves about 40% in disk size over PCM. A year's storage is contained on a single 3TB disk. Because it's lossless we can use it for later production without stacking compression quality losses. Bill Putney District 2 Commissioner - Port of Port Townsend Chief Engineer - KPTZ El Jefe de Contenido - Port Townsend Film Festival Private Pilot-Single Engine Land | Airframe & Powerplant / Inspection Authorization > On Nov 26, 2019, at 17:07, Geoff Barkman <[email protected]> wrote: > > Hi Mark. > What format are you storing your audio files in? Mp2 or pcm wav? A way to > work out is a 3 minute audio file is 30 mb if pcm wav, whereas mp2 is about > 4mb. Pcm wavs will fill your hard drive quickly. > Many thanks > Geoff Barkman > > >> On Wed, Nov 27, 2019, 2:00 PM Mark Murdock <[email protected]> wrote: >> OK, need some help. I’ve been using rdimport to import a bunch of songs from >> our SS32 system into Rivendell, and just as I was about to finish up, I >> started getting an error that said, “Audio Converter Error: No space left on >> device, skipping [file name].” The drive is a 1.5 TB drive, and there’s >> plenty of space left on it, but when I looked at the properties of /var/snd >> it said that 49.5 GB had been used of 53.7 GB, and that there is only 133 MB >> left (99% used). Is there a way to expand the space allocated for /var/snd? >> Is there a solution for this? >> >> >> >> Thanks! >> >> >> >> Mark Murdock >> >> KAMB >> >> 90 E. 16th St. >> >> Merced, CA 95340 >> >> (209) 723-1015 >> >> [email protected] >> >> Website >> >> >> >> _______________________________________________ >> Rivendell-dev mailing list >> [email protected] >> http://caspian.paravelsystems.com/mailman/listinfo/rivendell-dev > _______________________________________________ > Rivendell-dev mailing list > [email protected] > http://caspian.paravelsystems.com/mailman/listinfo/rivendell-dev
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