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JA on music waveform

In this month's letters section, JA responds to a reader who points out that we'll never understand the technical/sound divide of an amplifier when tests only use steady-state signals. In his response, JA said the music signal can be de-constructed into sinewaves of diff. frequencies and amplitudes. And therefore derive a test-sound quality standard.

Is this true ? Or tech-babble ? I would think we need better tests to understand the audio signal as it's processed by a (very complex) audio component...



Edits: 10/22/19

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Topic - JA on music waveform - J. Phelan 16:39:16 10/22/19 (99)

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