[Problem]To provide an audio device with which it is possible to efficiently utilize the storage capacity of a storage device for storing audio data. [Solution] In this audio device 1, in accordance with user profile information stored in a profile information storage unit 102, audio data inputted to an audio data input unit 103 is subjected by a filter unit 104 to a process of cutting a frequency band higher than the highest frequency audible to the user) and/or a frequency band lower than the lowest frequency audible to the user, and the data is then encoded by a codec unit 105, and stored to an audio storage device 100. Audio data can thereby be stored in the audio storage device 100 in compressed form with no noticeable decline in sound quality to the user, making it possible to store more audio data, such as music, in the audio storage device 100.

A device for reading waveform data of a musical tone from a primary storage device and transferring the read waveform data to a secondary storage device for tone reproduction includes a processor configured to perform: retrieving, for each waveform of a plurality of waveforms that represent a musical tone stored in the primary storage device, segment group information from the primary storage device; retrieving the plurality of waveforms that represent the musical tone from the primary storage device, the waveform group retrieval process retrieving a waveform or waveforms, among the plurality of waveforms, that have the same segment group information as a group; and writing, as a single group, the waveform or waveforms, among the plurality of waveforms, that have the same segment group information onto one of prescribed storage segments that are storage regions of prescribed sizes in the secondary storage device.

A sound processing apparatus includes: a conversion unit that samples predetermined audio data with a first quantization bit rate and a second quantization bit rate greater than the first quantization bit rate and outputs the respective results as first digital audio data and second digital audio data; a frequency analysis unit that performs frequency analysis on each output from the conversion unit; and a determination unit that performs predetermined determination processing on the basis of analysis results by the frequency analysis unit.

A sound processing apparatus includes: a conversion unit that samples predetermined audio data with a first quantization bit rate and a second quantization bit rate greater than the first quantization bit rate and outputs the respective results as first digital audio data and second digital audio data; a frequency analysis unit that performs frequency analysis on each output from the conversion unit; and a determination unit that performs predetermined determination processing on the basis of analysis results by the frequency analysis unit.

Various systems and methods may benefit from determination of environmental signatures in recordings. For example, such signatures may aid forensic analysis and alignment of media recordings, such as alignment of audio or video recordings. A method can include extracting electric network frequency signals from an image sequence of a video recording or an audio recording. The method can also include synchronizing the video recording or the audio recording with at least one other datum based on the electric network frequency signals.

Holographic sound is recorded and reproduced by way of a single monaural recording per left and right ear recorded. This is accomplished by determining the phase shift of frequencies recorded after dividing the sound into discrete frequencies in a recording device having resonators, each resonating at a different frequency, placed in a circular arrangement and divided into discrete channels by non-resonant material. The resonators are placed in a pseudo-randomized arrangement within the recording device and the circle of resonators is in front of a microphone which records the sound monaurally. Playback is then by way of arranging speakers or transducers into micro perforated sheets which amplify the sound, the arrangement of speakers/transducers around a central point. The sound is then played back directionally based on the position where the sound originally was recorded from and the position of the particular transducer around the central point.

Methods, systems and computer readable media for altering an audio output are provided. In some embodiments, the system may change the original frequency content of an audio data file to a second frequency content so that a recorded audio track will sound as if a different person had recorded it when it is played back. In other embodiments, the system may receive an audio data file and a voice signature, and it may apply the voice signature to the audio data file to alter the audio output of the audio data file. In that instance, the audio data file may be a textual representation of a recorded audio data file.

Holographic sound is recorded and reproduced by way of a single monaural recording per left and right ear recorded. This is accomplished by determining the phase shift of frequencies recorded after dividing the sound into discrete frequencies in a recording device having resonators, each resonating at a different frequency, placed in a circular arrangement and divided into discrete channels by non-resonant material. The resonators are placed in a pseudo-randomized arrangement within the recording device and the circle of resonators is in front of a microphone which records the sound monaurally. Playback is then by way of arranging speakers or transducers into micro perforated sheets which amplify the sound, the arrangement of speakers/transducers around a central point. The sound is then played back directionally based on the position where the sound originally was recorded from and the position of the particular transducer around the central point.

A computer-readable medium, controller and a method of automatically recording a sound signal is provided. A sound signal is received by the controller from a sound generating device. A frequency of the received sound signal is determined by the controller. When the determined frequency is within a predetermined frequency range, the controller starts recording the received sound signal.

[Problem] To provide an audio device with which it is possible to efficiently utilize the storage capacity of a storage device for storing audio data. [Solution] In this audio device 1, in accordance with user profile information stored in a profile information storage unit 102, audio data inputted to an audio data input unit 103 is subjected by a filter unit 104 to a process of cutting a frequency band higher than the highest frequency audible to the user) and/or a frequency band lower than the lowest frequency audible to the user, and the data is then encoded by a codec unit 105, and stored to an audio storage device 100. Audio data can thereby be stored in the audio storage device 100 in compressed form with no noticeable decline in sound quality to the user, making it possible to store more audio data, such as music, in the audio storage device 100.