It was so rich and resonant that even via the primitive acoustic recording process, much glory remains to be heard.

His recording career stretched from the days of acoustic recording until the beginning of the digital era.

Truncated versions had been recorded in 1916 using the acoustic recording process, the technical limitations of which necessitated drastic rearrangement of the score.

During this era of acoustic recording, the power of her voice was essential to the success of her recordings.

The pianist was displeased with the acoustic recording process, saying it made the piano sound like a banjo and did not record again until the advent of electrical recording.