Recently I've been listening to old vinyls that are recorded in Monaural and I'd like to try listening to music recorded as Stereo in Monaural.
Is there a way I could do that in OS X with out having to convert music files?
EDIT: This is how;
"[G]o to the Universal Access or "Accessibility" system preferences. In the audio section you will have an option to play stereo audio as mono. Check this box, and your audio will now come out as mono on any attached speaker or headphone system. For folks who use iPads and iPhones, this can be done by going to the General > Accessibility section of the iOS settings and enabling Mono Audio in the Hearing section."
Reference: http://www.cnet.com/how-to/output-stereo-as-mono-in-os-x/
Is there a way I could do that in OS X with out having to convert music files?
EDIT: This is how;
"[G]o to the Universal Access or "Accessibility" system preferences. In the audio section you will have an option to play stereo audio as mono. Check this box, and your audio will now come out as mono on any attached speaker or headphone system. For folks who use iPads and iPhones, this can be done by going to the General > Accessibility section of the iOS settings and enabling Mono Audio in the Hearing section."

Reference: http://www.cnet.com/how-to/output-stereo-as-mono-in-os-x/