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Is there way to convince Macs Audio MIDI S
On 10/6/18 11:10 AM, Robert Peirce wrote:
I have 6600 tracks encoded at 192kHz with Pure Vinyl and bookmarked in iTunes.Â*Â* I have a DAC that can accept a 192kHz signal and downsample it to its native rate of 96kHz, BUT the DAC shows up in AMS as 96kHz.Â* Pure Music sees this and downsamples the signal to 96kHz.Â* HOWEVER, for reasons known only to Rob Robinson, a downsampled signal can only be played from disk and a bookmark can only be played from memory.Â* Hence, nothing! This works but it is hardly obvious. I created an aggregate device in Audio MIDI Setup that contains both DACs. I made the 192kHz DAC the Clock source and set it to 192kHz. I made the 96kHz DAC the output DAC. I made the aggregate the output in Pure Musics audio setup. I am not a software guru so Im only guessing but I think the 192kHz DAC is telling Pure Music it is okay to send the audio aggregate a 192kHz signal and that signal is being sent to the 96kHz DAC, which is capable of playing 192kHz signals if you can get them to it. I have searched the internet and can find no explanation of how audio aggregates actually work, so this is pure guess-work. |
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