Can old out of tune original music tapes be tuned up to A440? Is there a device that could do it? Of course the music would be copied to a file and then the file tuned to A440. I would like to put them into a DAW and overdub. Appreciate any input. Thanks
Most DAWs have speed and pitch controls or plug-ins that you can use for this. It will most likely be a process of trial and error to determine exactly how much you want to shift any given recording. I would personally tune up an instrument or use a keyboard alongside the DAW and try to compare the tuning while playing along. You could also try watching an automatic chromatic tuner to see if each note is consistently sharp or flat.