Methods and systems for assisting tonally-challenged singers. A microphone can be integrated with a sound reinforcement system used in a live performance. The microphone, which can transduce the performer's voice, can serve multiple purposes such as, for example, to feed input to the natural ear and to the sound reinforcement system. The processed sound of the performer's voice (with fundamental frequency emphasized) can be mixed into the signal fed to a stage “monitor” speaker facing the performer or a headset worn by the performer.

A method for processing music audio data, including providing input audio data representing a first piece of music comprising a mixture of musical timbres. The method also includes decomposing the input audio data to generate at least first-timbre decomposed data representing a first timbre selected from the musical timbres of the first piece of music, and second-timbre decomposed data representing a second timbre selected from the musical timbres of the first piece of music. The method also includes applying a transport control to obtain transport controlled first-timbre decomposed data. The method also includes recombining audio data obtained from the transport controlled first-timbre decomposed data with audio data obtained from the second-timbre decomposed data to obtain recombined audio data.

An improved tuning method for fixed interval musical instruments is provided. This Precise Temperament tuning method provide mathematically consistent intervals between notes to prevent dissonance within chords while retaining the esthetics of pure tones associated with Western music.

Apparatus, articles of manufacture, and systems for audio matching based on a harmonogram are disclosed. An example apparatus includes memory, and hardware to execute instructions to determine a first dominant frequency in a time slice of audio data based on a segment of a first spectrogram associated with the audio data, the first dominant frequency indicative of a first harmonic component of the time slice, determine a second dominant frequency indicative of a second harmonic component of the time slice, the second harmonic component less dominant than the first, generate a query harmonogram of the audio data, different segments of the query harmonogram representative of aggregate energy values of dominant frequencies in different time slices of the audio data, the dominant frequencies including at least one of the first or second dominant frequencies, and identify query sound based on a comparison of the query harmonogram to a reference harmonogram.

A capo-light system is disclosed herein. The capo-light system includes a capo device and an electronic handheld device. The capo device is coupled at a defined portion of a stringed instrument. Additionally, the capo device includes a clamp member configured to be coupled to strings of stringed instrument at defined portion. A light source is positioned at an end of a retractable arm attached to clamp member and configured to provide a first set of functionalities. Furthermore, a microphone is positioned at the clamp member and configured to provide a second set of functionalities. An electronic handheld device is coupled to capo device via a communication network and is configured to control the first set of functionalities associated with the light source and the second set of functionalities associated with the microphone.

Disclosed is subject matter related generally to audio signal processing, and in particular to automatic pitch correction systems.

Systems, devices, and methods for encoding the harmonic structure of a musical composition in a digital data structure are described. Tonal and rhythmic commonalities are identified across the musical bars that make up a musical composition. Individual bars of the musical composition are each analyzed to characterize their respective harmonic fingerprints in various forms, and the respective harmonic fingerprints are compared to sort the musical bars into harmonic equivalence categories. Isomorphic mappings between hierarchical data structures that encode the musical composition based on musicality and harmony, respectively, are also described. The systems, devices, and methods for encoding the harmonic structure of a musical composition in a digital data structure have broad applicability in computer-based composition and variation of music.

An acoustic device includes an audio recording playback unit, an analysis unit, and an acoustic effect imparting unit. The audio recording playback unit records and plays back string independent acoustic signals for each string independent acoustic signal. The string independent acoustic signals respectively correspond to different strings of a stringed instrument and being independent from each other. The analysis unit analyzes at least one string independent acoustic signal from among the recorded string independent acoustic signals. The acoustic effect imparting unit imparts an acoustic effect to the at least one string independent acoustic signal for each string independent acoustic signal, based on a result of the analysis by the analysis unit.

A method for detecting a melody of an audio signal, including: dividing the audio signal into a plurality of audio segments based on a beat, detecting a pitch frequency of each frame of audio sub-signal in each of the audio segments, and estimating a pitch value of each of the audio segments based on the pitch frequency; determining a pitch name corresponding to each of the audio segments based on a frequency range of the pitch value; acquiring a musical scale of the audio signal by estimating a tonality of the audio signal based on the pitch name of each of the audio segments; and determining a melody of the audio signal based on a frequency interval of the pitch value of each of the audio segments in the musical scale.

The present invention relates to a method and system for analysing audio (eg. music) tracks. A predictive model of the neuro-physiological functioning and response to sounds by one or more of the human lower cortical, limbic and subcortical regions in the brain is described. Sounds are analysed so that appropriate sounds can be selected and played to a listener in order to stimulate and/or manipulate neuro-physiological arousal in that listener. The method and system are particularly applicable to applications harnessing a biofeedback resource.