Drum and drum-set tuner

摘要

A resonance tuner receives and digitizes an analog signal in response to a resonance of a structure thereby creating a plurality of time samples. A series of the time samples are buffered upon burst detection. A power spectrum is estimated by computing a Time-To-Frequency-Transform of the series of time samples and a magnitude of each of the resulting frequency samples is squared. At least one subset associated with at least one spectral peak is selected from the frequency samples. Each spectral peak has at least one sample with a sufficient magnitude and being spectrally adjacent to any other sample in another spectral peak by less than a threshold. A fundamental spectral peak is determined in a fundamental subset including a spectral peak with a sample at the lowest frequency greater than zero. The fundamental spectral peak has the sample with the largest magnitude within the fundamental subset.

主权项

1. A drum-set tuner comprising:
a receiver configured to generate a signal in response to a resonance of a drum of a drum-set; a frequency measuring device in communication with the receiver, and configured to measure a frequency of the drum from the signal; a user interface module in communication with the frequency measuring device, the user interface module including one or more input controls configured to accept user inputs and a display configured to display information to a user based on a measured frequency of the drum; and a pitch-set processor in communication with the frequency measuring device and the user interface module, the pitch-set processor specifying a recommended frequency of a drum or drumhead, wherein the user interface module is configured to display the recommended frequency.