I’m using Audacity 188.8.131.52 from the .dmg on a Mac Pro hex core with 24 GB RAM. Audacity is installed on a SSD boot drive and the data is stored on a RAID 0 combination of conventional HD’s. Using OS X 10.6.8.
I record streaming radio, my saved projects (.aup) are anywhere from seven to twelve hours long, sometimes I will save them in halves. The files are ~7-17 GB. I export selections from the projects in AIFF that are ~80 minutes long. The stream is mp3, 128 Kbps. I record on a Windows PC running Windows Seven, using Real Player, for logistical reasons. Then drag them to the Mac over the network. That way I can record on the PC while I edit on the Mac, and also do not have to relay on that stinking, crash-prone, Adobe shock wave flash player. Adobe, are you listening!?
I’m just an audio lay person, although I am a rocket scientist,…really. I export in AIFF so as to have a file I can edit without loss of quality before I export a final section for listening, which I want to be as good as possible. I understand that I’m not starting with the gold standard of recording, nevertheless… I drag the files into iTunes, where they play just fine. I import them into my iPod, and while it’s plugged into the computer it plays the files. However, once the iPod is disconnected, the AIFF files will not play on the iPod.
If I export from Audacity in WAV or AAC, no problems. Same with if I convert the AIFF files to either of those two while in iTunes. I called Apple tech support and was escalated twice, ultimately, to a senior tech spec., who didn’t have an answer, but would like to know what I find out. AIFF should be compatible with the iPod. In fact, some of the earlier AIFF files I created in Audacity will play on the iPod, but after trying to play, several times, those which will not, the early files will no longer play either. But, if I reset the iPod they will play again. Restoring does not help, except doing so will provide the same fix for the early AIFF files as a reset.
I realize I can work around the issue by not using AIFF, however, inquiring minds want to know…