A playback device (measurement device) in a record playback system including a record player and the playback device measures a frequency characteristic of each of a plurality of input signals which are input from the record player to the playback device when a plurality of test signals for measuring a characteristic of the record playback system are played back by the record player, the plurality of test signals being recorded on a phonograph record, the plurality of input signals corresponding to the plurality of test signals recorded; calculates a measurement error between the frequency characteristic of each of the plurality of input signals measured and a predetermined frequency characteristic; selects a frequency characteristic of which the measurement error is smallest from among the frequency characteristics of the plurality of input signals, as a measurement result of the record playback system; and outputs the measurement result selected.

The present invention provides a computer-implemented method and an apparatus for manufacturing an analogue audio storage medium wherein digital audio data is converted into topographical data representing an analogue translation of the digital audio data, and a laser beam is selectively applied to a substrate to form a physical imprint of the topographical data on the surface of the substrate to create an analogue audio storage medium. The medium may be directly playable on a conventional playback device such as a record player and/or used to mould further playable mediums. The invention thereby enables more efficient manufacturing of e.g. vinyl records and consistently ensures a much higher quality of analogue audio.

In order to create a long-lasting memento for a musical performance for example, which also has a practical use, a coin or medal is designed with an embossed soundtrack. Furthermore, a method for embossing this coin or medal is proposed.

A gramophone plate (P) having at least one face, the at least one face including at least one region on which is recorded audio data (2), wherein the said at least one region of the at least one face also has at least one visual image (7), or a portion of at least one visual image, recorded thereon.

An embodiment of the invention provides a phonorecord for embodying an audio recording. The phonorecord can comprise a substrate and a conformal coating disposed on at least a portion of the substrate. The substrate can comprise one or more grooves embodying the audio recording.

An analog recording medium disc includes a first face including a read layer and a first tag. The analog recording medium disc includes a radio-frequency identification device that includes a contactless electronic chip that is associated with an antenna. The antenna is printed directly on a face of the tag, and the tag is held within the material of the disc.

An analog recording medium disc includes a first face including a read layer and a first tag. The analog recording medium disc includes a radio-frequency identification device that includes a contactless electronic chip that is associated with an antenna. The antenna is printed directly on a face of the tag, and the tag is held within the material of the disc.

The present invention provides a computer-implemented method and an apparatus for manufacturing an analogue audio storage medium wherein digital audio data is converted into topographical data representing an analogue translation of the digital audio data, and a laser beam is selectively applied to a substrate to form a physical imprint of the topographical data on the surface of the substrate to create an analogue audio storage medium. The medium may be directly playable on a conventional playback device such as a record player and/or used to mould further playable mediums. The invention thereby enables more efficient manufacturing of e.g. vinyl records and consistently ensures a much higher quality of analogue audio.

An embodiment of the invention provides a phonorecord for embodying an audio recording. The phonorecord can comprise a substrate and a conformal coating disposed on at least a portion of the substrate. The substrate can comprise one or more grooves embodying the audio recording.

A gramophone record includes a main body and a cladding layer. The main body is made of a polymeric material, and has a base surface and an extending surface which extends downward from the base surface. The extending surface defines a continuous spiral groove in the main body. The cladding layer is formed on the extending surface, and has a Hardness Rockwell C (HRC) of not less than 37.