Anything over 0 gets whacked off.Īh, I think I am “getting it” now. Outside of Audacity, the old rules apply. Inside Audacity, any effect or filter can be applied without permanent sound damage. Garageband’s 24bit high quality capture, processing and exporting engine is more difficult to control due to this lack of interface analysis. Garageband has great live editing tools but very little analysis of what it’s doing to the original waveform regardless of source. to these CD files, I have to adjust volume down or apply it default Normalize preference (which I turn off) or else get permanently clipped/flattened waveforms opening the saved aiff file in Audacity. However, when I attempt to do this in Garageband '11 with it set to 24bit 44kHz capture/output, applying compression, EQ, etc. To bring back volume I use a limiter set to 6db increase. I just reduce amplification and no more red clipping indicators and no flatness in waveform peaks. I can apply extreme EQ curves to boost bass, add reverb, noise reduction and adjust pitch which most of the time will show the red clipping bars. This is one of the features I like about Audacity’s 32bit floating point processing for remastering poorly mastered music files off commercial CD’s. While I am experimenting here I thought I’d ask on this forum as well, since it could be something obvious (to someone else)! Maybe I need to try changing the iMac’s MIDI “Hardware Rate Converter” from Disable to Enable? (I don’t know what that setting does - or even if the iMac’s MIDI controls are a factor at all). Usually I get the levels right so there’s no need to deamplify, but, for those times when I judge incorrectly and come back 45 minutes later to find peaks are too high it seems like the ability to deamplify to 0dB would be very useful! It just doesn’t seem to work on my setup for some reason.
The audio coming in via the iMac’s analog line-in is from an analog cassette deck (I’m digitizing cassettes).
32 bit audacity for mac 32 bit#
So, I have the iMac’s MIDI’s preferences set to: source (line in), 48kHz, 2ch-32bit Float, Hardware Rate Converter set at “Disable”.Īudacity’s (ver 2.1.2.0, probably via the dmg installer) preferences are set to: Stereo, 48kHz, 32 bit float.Īudacity’s dropdown settings are set to: Core Audio, Built-in Input, 2 (Stereo) Recording Channels.
(I assume it is capable of these settings or they wouldn’t be present or they’d be greyed out.) I can’t find any specs that reveal what its sound card’s abilities are but the MIDI preferences include 16bit, 24bit, and 32bit float. (I haven’t exported the recording or anything that could have changed it from 32bit float). I’ve been attempting this, but when I deamplify, the peaks are flat. I’ve read that when recording in Audacity’s 32bit float sample format, peaks that extend beyond 0dB can be deamplified without any cliping.
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