665results about "Digital recording/reproducing" patented technology

The invention discloses an artificial intelligence automatic response conference assistant, and particularly relates to the technical field of intelligent video conferences. The system comprises a user interface used for displaying conference information, function options and execution results, a large language model used for natural language processing and understanding, and a language recognition module used for converting voice input into characters to achieve real-time conference recording and voice instruction recognition. By means of friendly user interface design, conference information, function options and execution results can be visually displayed, a user can easily operate and master the whole conference process, the voice recognition module adopts a high-quality recording module, voice content in a conference is accurately transferred into characters in real time, and the user experience is improved. The completeness and the accuracy of conference records are ensured, the large language model further performs semantic understanding and processing on the transferred text, intelligent conference abstracts and responses are generated, a user is helped to rapidly obtain key information, and the postprocessing module automatically sends the abstracts to a user mailbox to achieve the purpose of meeting. Or the system is automatically integrated to an online office system of a user, so that a lot of time and energy are saved.

The invention discloses a sampling rate conversion device and method and an audio playing system, the sampling rate conversion device comprises a signal sampling unit, a filter coefficient generation unit and a multiphase filter convolution unit, the signal sampling unit samples an input signal based on an extraction factor to obtain a target input sampling point, and the multiphase filter convolution unit carries out convolution on the target input sampling point; a filter coefficient generation unit determines a target filter coefficient and a historical filter coefficient according to the sampling point address information of the target input sampling point and a multi-phase filter basic coefficient table; and the multi-phase filter convolution unit performs convolution operation based on the target input sample point, the historical sample point, the historical filter coefficient and the target filter coefficient to obtain an output sample point. As the output sample point is obtained by performing convolution operation on the target input sample point, the historical sample point, the historical filter coefficient and the target filter coefficient, up-sampling can be realized without using an interpolation filter, and down-sampling can be realized without using the interpolation filter, so that the conversion step can be simplified, and the conversion efficiency can be improved.

The invention discloses an audio signal adjustment method and device, equipment, a medium and a program product, and belongs to the field of audio processing. The method is executed by a client, and comprises the following steps: sending a reference audio signal to airborne equipment in a target vehicle; recording to obtain a recorded audio signal, the recorded audio signal being a signal recorded by the client in the cabin of the target vehicle after the airborne equipment plays the reference audio signal; adjusting an audio filter with the recording audio signal and the reference audio signal being the same as each other as a target; and filtering the subsequently played first audio signal through an audio filter to obtain a second audio signal. According to the method, a recorded audio signal is obtained through recording, the recorded audio signal is an audio signal associated with a reference audio signal, and an audio filter is adjusted with the two audio signals being the same as each other, so that a first audio signal played subsequently can be filtered and optimized, and a second audio signal more suitable for being listened in a current cabin is obtained.

The present invention discloses an audio recording and conversion method for a Bluetooth headset, specifically related to the field of audio recording and conversion. The present invention pairs and connects with the Bluetooth headset by turning on the Bluetooth function of the sound source device; subsequently, the recording process is started by pressing the "Recording" button on the headset, and the system guides the user to select the audio format and confirm the recording settings; during recording, the built-in microphone of the headset collects audio signals in real time, denoises and amplifies the collected audio signals, and then converts the processed audio signals into digital signals; the processed digital signals are embedded with watermarks, and the watermark evaluation value is calculated, and the watermark is verified by comparing the watermark evaluation value; then, the digital signals are converted into analog signals and reconstructed into audio signals, and finally, the system performs watermark detection on the reconstructed audio signals, and ensures the integrity and authenticity of the audio signal data by comparing the detected watermark information.

An audio output system comprising: an audio output device configured to output different pieces of audio content in accordance with sound figures; a user device configured to control the audio output device through an application; and a shadow device connected to the user device and the audio output device through communication networks, respectively, and configured to store control information for the user device to control the audio output device, wherein the control information includes current state information that represents a current state related to an output of the audio content of the audio output device and specific state information for changing the state of the audio output device to a specific state desired by a user, and wherein the user device is configured to be provided with the current state information that represents the current state from the shadow device and to provide the specific state information for changing the state of the audio output device to the specific state to the shadow device.

The invention relates to the technical field of digital playing equipment, and provides a lossless control method for the volume of a digital player and the digital player. The method comprises the following steps of: after receiving a target volume parameter, executing dynamic multiplying power oversampling and high-order noise shaping on an input digital audio signal, and injecting preset jitter to suppress in-band quantization distortion so as to generate an optimized digital audio stream; meanwhile, a high-resolution digital reference current control instruction corresponding to the target volume is independently generated, output of a reference current source is adjusted according to the high-resolution digital reference current control instruction, and a high-precision differential current signal is obtained by combining nonlinearity, temperature excursion and quantization errors of a closed-loop feedback compensation device through a multi-bit current segmentation network; performing bias stabilization processing on the signal, and converting the signal into a differential voltage signal for suppressing common-mode noise through a precision differential resistance network; and finally, low-distortion differential analog audio signals capable of directly driving a load are output through low-distortion gain, impedance conversion and power driving, so that low-distortion, high-signal-to-noise-ratio and wide-dynamic-range output in a full-volume range is realized.

According to one embodiment, a magnetic reproducing processing device includes a decoder and an error correction decoder. A first signal based on a reproduced signal is input to the decoder. A signal based on a second signal output from the decoder is input to the error correction decoder. The error correction decoder is configured to correct errors in the second signal based on a check matrix. The decoder includes a neural network layer. The neural network layer includes a plurality of calculation nodes. A connection relationship between the plurality of calculation nodes is based on the check matrix.

According to one embodiment, a magnetic reproducing processing device includes a decoder and an error correction decoder. A first signal based on a reproduced signal is input to the decoder. A signal based on a second signal output from the decoder is input to the error correction decoder. The error correction decoder is configured to correct errors in the second signal based on a check matrix. The decoder includes a neural network layer. The neural network layer includes a plurality of calculation nodes. A connection relationship between the plurality of calculation nodes is based on the check matrix.

The invention relates to the technical field of audio playing, and discloses an audio playing method and device capable of keeping contexts continuous, equipment and a storage medium. Matching an audio context model conforming to a preset rule from a playing record database; analyzing the audio context model, and extracting audio playing state information and sound effect configuration information recorded in the audio context model; and adjusting the sound effect of the target playing device, and controlling audio playing according to the audio playing state information. Through the playing control mode, switching playing of multiple sound sources can be achieved, continuous playing after switching can also be achieved, and the problems that audio playing repetition is high after traditional switching, and the user experience feeling is reduced are solved.

The present technology relates to a signal processing device, a signal processing method, and a program for enabling reduction of a processing load while ensuring safety. The signal processing device includes a control unit configured to acquire designation information indicating a designated portion to be encrypted in output data and an encryption processing unit configured to encrypt the designated portion indicated by the designation information in the output data using a key. Furthermore, the designated portion indicated by the designation information is changed with time. The present technology can be applied to an in-vehicle camera.

The invention discloses an audio resampling method and device based on frequency domain processing. The method comprises the following steps: a time domain-to-frequency domain step: inputting an input signal with a first sampling rate, and carrying out overlapping framing, time domain windowing and FFT (Fast Fourier Transform) to obtain a first frequency spectrum under the first sampling rate; a sampling rate conversion step: normalizing the first frequency spectrum by taking the number of sample points of the input signal subjected to FFT as a parameter to obtain a normalized first frequency spectrum; constructing a second spectrum under a second sampling rate according to the first spectrum under the first sampling rate, wherein the spectrum resolutions of the second spectrum and the first spectrum are consistent; windowing the second frequency spectrum for smooth transition; and a frequency domain-to-time domain step: carrying out IFFT (Inverse Fast Fourier Transform) on the second frequency spectrum at the second sampling rate, overlapping and adding to obtain a corresponding time domain value at the second sampling rate. According to the method, high-quality resampling can be realized, and the method can be combined with other algorithms needing to be processed in the frequency domain to realize the purpose of resampling and other functions in one step, so that the computing power is saved.

To reduce a storage capacity and costs required upon response to a data acquisition request.SOLUTION: An information processor includes a control part 110 that executes: storing, into a storage part 120, an information index related to log data collected by a vehicle 200 and a storage destination of the log data linked to the information index; extracting, based on the information index with reference to the storage part 120, a first storage as a storage destination of first log data as log data to be acquired; and requesting the first log data from a device having the first storage. The information index includes information indicating a position where the log data is collected, and the information indicating the position where the log data is collected is expressed by a bit string based on a space filling curve.SELECTED DRAWING: Figure 2

To provide a digital broadcast receiver capable of executing functions with higher added value.SOLUTION: A digital broadcast receiver includes: a broadcast receiving unit capable of receiving digital broadcast content and control information about content protection of the content; an accumulation unit that accumulates the content received by the broadcast receiving unit; a video output unit that outputs video of the content received by the broadcast receiving unit or the content accumulated in the accumulation unit to an external apparatus; an interface that copies or moves the content accumulated in the accumulation unit to the external apparatus; and a control unit. The control unit controls content protection processing based on the control information related to content protection according to control states of the accumulation unit, video output unit, and interface by the control unit.SELECTED DRAWING: Figure 8A

To provide a magnetic disk device and a writing method for bypassing without using free bands.SOLUTION: A magnetic disk device according to an embodiment is a magnetic disk device that records data by shingled recording, in which data to be written to a track to be written and data to be located on one track ahead of the track to be written are received in a volatile memory and then written to the track to be written, when performing sequential writes to a shingled recording area on a magnetic disk and data not to be written to the shingled recording area among the data received in the volatile memory is stored in the volatile memory when an unexpected power failure occurs.SELECTED DRAWING: Figure 7

Methods and apparatus to audio watermarking and watermark detection and extracted are described herein. An example method includes receiving a media content signal, sampling the media content signal to generate samples, storing the samples in a buffer, determining a first sequence of samples in the buffer, determining a second sequence of samples in the buffer, wherein the second sequence of samples is of substantially equal length as the first sequence of samples, calculating an average of the first sequence of samples and the second sequence of samples to generate an average sequence of samples, extracting an identifier from the average sequence of samples, and storing the identifier in a tangible memory.

A defense recorder system and mobile application-implemented process are disclosed. The defense recorder system and mobile application-implemented process combines GPS location to record in public areas when local laws state that audio recording is only legal in public areas. Single party consent states will not require the GPS function but will require the constant audio recording to be made in a loop, deleting the oldest of files automatically.

Example systems, data storage devices, and methods for using a harmonic sensor in the read channel of a data storage device to determine phase error are described. The data storage device includes a storage medium with data tracks and a head that can be positioned for reading and writing those tracks. A tone pattern may be written to a data track and a read signal from the tone pattern may subsequently be processed through the harmonic sensor to acquire amplitude data corresponding differences between a target frequency of the tone pattern and a read frequency from the read signal. The amplitude data may be processed to determine phase error values that correspond to an operating condition during writing, such as mode hops and / or down track thermal gradients related to operation of a laser during heat assisted magnetic recording.

To provide a signal processing device, a control method for the signal processing device, and a program capable of synchronizing time information with sound signals even when the sound signals do not contain time codes.SOLUTION: A signal processing device includes: signal processing means for processing a sound signal; measuring means for measuring a delay time caused by signal processing by the signal processing means based on first time information output from timing means and second time information output from the signal processing means; and synchronizing means for synchronizing the time information output from the timing means with the sound signal processed by the signal processing means based on the delay time measured by the measuring means.SELECTED DRAWING: Figure 1

Disclosed in the present application is an audio and video player, comprising a first frame structure and a second frame structure, wherein a mounting box is connected between the first frame structure and the second frame structure; a sound module is mounted in the mounting box; the mounting box is provided with a speaker hole; a screen assembly is mounted on the first frame structure; a main control structure is provided between the first frame structure and the screen assembly; the screen assembly and the sound module are both electrically connected to the main control structure; and the screen assembly is detachable relative to the first frame structure.

The APPARATUSES, METHODS AND SYSTEMS FOR A DIGITAL CONVERSATION MANAGEMENT PLATFORM (“DCM-Platform”) transforms digital dialogue from consumers, client demands and, Internet search inputs via DCM-Platform components into tradable digital assets, and client needs based artificial intelligence campaign plan outputs. In one implementation, The DCM-Platform May capture and examine conversations between individuals and artificial intelligence conversation agents. These agents may be viewed as assets. One can measure the value and performance of these agents by assessing their performance and ability to generate revenue from prolonging conversations and / or ability to effect sales through conversations with individuals.

The present invention relates to a smartphone recorder. The smartphone recorder according to an embodiment of the present invention comprises: a case body comprising a front cover attachable to / detachable from the rear surface of a smartphone and a rear case which is coupled to the rear portion of the front cover and has an accommodation space therein; a magnet which attaches the front cover to the rear surface of the smartphone by using magnetism; an input unit which receives an input of speech information during making a call via the smartphone; and a recording portion which records the speech information input to the input unit.

An audio output system comprising: an audio output device configured to output sound content for auditory stimulation of infants and young children; a user device configured to control the audio output device; and a server connected to the user device and the audio output device through communication networks, respectively, and configured to provide a service environment for controlling the audio output device to the user device, wherein the audio output device includes an audio output station including a sound figure corresponding to the sound content and a docking space to which the sound figure is docked, and configured to recognize the sound figure docked to the docking space and to output the sound content corresponding to the recognized sound figure, wherein the service environment includes a function of changing the sound content corresponding to the sound figure, and wherein the server is configured to receive a request to change the sound content corresponding to the sound figure from the user device and to process the request to change the sound content corresponding to the sound figure in consideration of a state of the audio output device.

The invention relates to the field of audio data processing, in particular to a high-tone-quality audio data processing method and system. The method comprises the following steps: identifying an audio signal to be processed; performing multi-time-window segmentation processing and adaptive noise filtering on the audio signal to be processed to obtain a noise filtering optimized audio signal; performing multi-scale spectral decomposition on the noise filtering optimized audio signal, capturing transient audio details, and identifying transient audio detail information of each scale; performing audio frequency range calculation according to the transient audio detail information of each scale, and performing dynamic full-band range adjustment to obtain transient information full-band optimized audio; and carrying out environmental acoustic effect mining on the transient information full-band optimized audio, and carrying out current audio scene inference to obtain a real-time audio propagation scene. According to the invention, the space sense, the precision and the fidelity of the audio are improved.

The utility model discloses an intelligent touch pen system and an intelligent touch pen, the intelligent touch pen comprises a pen body, a recording module, a first Bluetooth module, a voice key and an artificial intelligence key, the recording module is used for receiving voice information; the first Bluetooth module is used for processing the voice information and then sending the voice information to the electronic terminal; the voice key is used for controlling the starting time and duration of the voice information received by the recording module; the artificial intelligence key is used for starting a first mode representing an artificial intelligence writing mode and controlling the starting time and duration of receiving voice information by the recording module in the first mode; the first Bluetooth module is further used for sending a first instruction representing starting of the first mode. Therefore, a user can use the intelligent touch pen to quickly call the artificial intelligence writing function of the electronic terminal, and quickly process the voice information recorded by the intelligent touch pen based on the artificial intelligence writing function, so that the daily office efficiency of the user is improved, and the man-machine interaction experience of the user is improved.

The invention provides sound recording equipment, a sound recording method, a storage medium and a product. The sound recording equipment comprises a controller, a first microphone module and a first sound recording acquisition module, the first recording acquisition module comprises at least two gain channels with different gain values; the first microphone module collects an audio signal and transmits the audio signal to each gain channel for analog gain; the first recording acquisition module performs analog-to-digital conversion on the analog gain signals output by the gain channels to obtain digital signals corresponding to the gain channels, and transmits the digital signals corresponding to the gain channels to the controller; and the controller determines a target gain channel corresponding to the audio signal according to the signal strength of the digital signal corresponding to each gain channel, takes the digital signal corresponding to the target gain channel as a recording signal corresponding to the audio signal, and stores the recording signal. According to the scheme, appropriate gains are selected according to the audio signals with different intensities, so that the recording quality during wide dynamic range recording is improved.

The invention discloses an audio recording and conversion method for a Bluetooth headset, and particularly relates to the field of audio recording conversion. The audio recording and conversion method comprises the steps that a Bluetooth function of sound source equipment is started, and the sound source equipment is connected with the Bluetooth headset in a paired mode; then, a recording process is started through a recording button on the earphone, and the system guides the user to select an audio format and confirm recording setting; in the recording period, a built-in microphone of the earphone collects audio signals in real time, the collected audio signals are subjected to denoising and signal amplification processing, and then the processed audio signals are converted into digital signals; embedding a watermark into the processed digital signal, calculating a watermark evaluation value, and comparing and verifying whether the watermark is embedded or not through the watermark evaluation value; the method comprises the following steps: firstly, converting a digital signal into an analog signal, reconstructing the analog signal into an audio signal, and finally, carrying out watermark detection on the reconstructed audio signal by a system, and comparing detected watermark information to ensure the integrity and authenticity of audio signal data.

An electronic device according to an embodiment comprises a memory, a display, and a processor operatively connected to the memory and the display, wherein the processor may be configured to: collect speech data; match the collected speech data with user information related to the collected speech data and store, in the memory, association information between the collected speech data and the user information; when generating content, detect speech data of the content input that is input during generation of the content; and when there is user information matching with the detected speech data in the memory, store the user information matching with the detected speech data of the content as tag information of the content.

To provide a copy management system, a processing method, and a program that can easily determine whether discarding a recording medium having data stored therein presents no problem.SOLUTION: A copy management system 1 comprises tape drives 203a, 203b being writing means that, when copying data, write copy information with which a second recording medium 204b being a copy destination of the data can be specified, in a first recording medium 204a being a copy source of the data, and writes, in the second recording medium, copy information with which the first recording medium can be specified.SELECTED DRAWING: Figure 1

The embodiment of the invention discloses an audio data processing method, device and equipment and a readable medium, and the method comprises the steps: obtaining generated session audio data in a voice session process; for each audio frame in the session audio data, performing audio analysis on the audio frame to obtain an analysis result; and if the analysis result shows that the audio frames do not contain the sound information, discarding the audio frames, and generating an audio recording file corresponding to the voice session based on the residual audio frames in the session audio data. According to the technical scheme of the embodiment of the invention, the proportion of effective information in the audio recording file can be improved.