What is a Tone Decoder?

Pitch indexing refers to the ability to retrieve music based on a song sung, hummed, or exported by other methods. Music libraries often require finding a piece of music that matches or sings or tunes out. Tone indexing is generally implemented based on speech recognition technology and indexing technology. Based on the pitch index, users can sing a measure, and then they can retrieve and display songs that match the key and note.

With the continuous development of multimedia technology, tone indexing, as a branch of content-based music retrieval, provides a new search method for many users. It means that users can identify the starting point of humming notes in large-scale music. The target song is searched in the database. Intelligent recognition of the starting point of humming notes for characteristic pitch retrieval is a key prerequisite to ensure the quality of pitch retrieval, and thus has become

The sound frequency is called

Computer music refers to technology that uses computers to process music information. Computers have powerful information processing capabilities, and although music ultimately appears as vibrations of sound waves, sound waves are only the carrier of music information, and the music information itself can be completely processed by the computer. Music information has different levels, which can be roughly divided into signal layer, internal presentation layer and human-computer interface layer. The music information on the signal layer is a digital instruction that conforms to a certain standard. It can be accepted by any electronic musical instrument equipped with a MIDI interface and converted into sound with auditory effects in real time. The music information on the internal presentation layer is in a computer-readable format Stored and processed; music information on the human-machine interface layer is expressed as human-readable scores.