The mid-50s to the late 60s is known as the Golden Era of recording, primarily for the following reasons:
1. The recording devices - mikes, tapes, record cutters -were Valve driven
2. Minimal miking - just one to three mikes to capture the entire orchestral field
3. Very little overdubbing - most 'takes' were live. Recording tapes were 2-track or 4-track.
4. Large reverberant studios that captured ambient sounds
5. An innovative bunch of recording engineers, like Rudy van Gelder, Roy duNann, etc
Later, you had 24 track tapes, solid state amps, tiny studio booths, instruments recorded separately, massive overdubbing, close miking of each instrument, etc. often mixed down by engineers unconnected with the original performers. Today, it's the same, but further sanitized, equalized, pitch corrected, over compressed, etc by Pro-Tools. There are exceptions, of course, but you have to search hard to find them.
1. The recording devices - mikes, tapes, record cutters -were Valve driven
2. Minimal miking - just one to three mikes to capture the entire orchestral field
3. Very little overdubbing - most 'takes' were live. Recording tapes were 2-track or 4-track.
4. Large reverberant studios that captured ambient sounds
5. An innovative bunch of recording engineers, like Rudy van Gelder, Roy duNann, etc
Later, you had 24 track tapes, solid state amps, tiny studio booths, instruments recorded separately, massive overdubbing, close miking of each instrument, etc. often mixed down by engineers unconnected with the original performers. Today, it's the same, but further sanitized, equalized, pitch corrected, over compressed, etc by Pro-Tools. There are exceptions, of course, but you have to search hard to find them.