Which statement about the tempo map is true?

Which statement about the tempo map is true?

• A. The tempo map only affects MIDI timing.
• B. The tempo map controls the tempo of playback only in the current session.
• C. The tempo map is optional and can be ignored.
• D. The tempo map must be active for MIDI timing and Elastic Audio timing.

Answer: (D)

Tempo changes are stored in the tempo map, and that information drives how timing is calculated for both MIDI and Elastic Audio. MIDI playback follows the current tempo so notes hit at the right moments, while Elastic Audio uses the tempo data to time-stretch or compress audio to stay in sync with tempo changes. Because of this, the tempo map must be active for both MIDI timing and Elastic Audio timing. The other statements don’t fit because the tempo map affects more than MIDI timing, isn’t something you can ignore, and is part of the session’s timing data rather than something separate from it.

Tempo changes are stored in the tempo map, and that information drives how timing is calculated for both MIDI and Elastic Audio. MIDI playback follows the current tempo so notes hit at the right moments, while Elastic Audio uses the tempo data to time-stretch or compress audio to stay in sync with tempo changes. Because of this, the tempo map must be active for both MIDI timing and Elastic Audio timing. The other statements don’t fit because the tempo map affects more than MIDI timing, isn’t something you can ignore, and is part of the session’s timing data rather than something separate from it.