I have a playlist which I sync to a USB key for my car. I have three formats of source music: MP3, ALAC (CD), ALAC (HiRes)
My car does not support anything above 44/16.
So, ideally, I would like it to sync MP3 and ALAC (CD) and Downsample ALAC (HiRes).
Help for the option "Specified output format only when necessary (including high bitrates)" says:
The file is only converted when it is not supported by the target device, as defined by the supported file types listed in the Handheld Options > "File, Paths, & More > Supported Types", or the file type is supported but the bitrate is significantly higher than the output bitrate specified in the Encoder settings of the Encoder selected in the Handheld Options.
BUT, when I select ALAC (or FLAC) as the output, options for the format are compression levels. There appears no way to say, max bit rate is CD quality.
How can I do this ?