A system and method for transmitting at least one multichannel audio matrix across a global network is shown and described. The method for transmitting at least one multichannel audio matrix across a global network begins by capturing audio from a production source. The captured audio is then converted from an analog format to a digital format. The digital audio may then be encoded using an audio codec. The audio is sent to a network and received at a second location. The second location uses a specialized computing device to ensure the audio is properly received. If the audio was encoded, it is now decoded. Once decoded if needed the audio is converted back to analog format. This will allow for the audio to be mixed on a mixing device.

A system and method for transmitting at least one multichannel audio matrix across a global network is shown and described. The method for transmitting at least one multichannel audio matrix across a global network begins by capturing audio from a production source. The captured audio is then converted from an analog format to a digital format. The digital audio may then be encoded using an audio codec. The audio is sent to a network and received at a second location. The second location uses a specialized computing device to ensure the audio is properly received. If the audio was encoded, it is now decoded. Once decoded if needed the audio is converted back to analog format. This will allow for the audio to be mixed on a mixing device.

On the basis of a bitstream (P), an n-channel audio signal (X) is reconstructed by deriving an m-channel core signal (Y) and multichannel coding parameters (a) from the bitstream, where 1≦m<n. Also derived from the bitstream are pre-processing dynamic range control, DRC, parameters (DRC2) quantifying an encoder-side dynamic range limiting of the core signal. The n-channel audio signal is obtained by parametric synthesis in accordance with the multichannel coding parameters and while cancelling any encoder-side dynamic range limiting based on the pre-processing DRC parameters. In particular embodiments, the reconstruction further includes use of compensated post-processing DRC parameters quantifying a potential decoder-side dynamic range compression. Cancellation of an encoder-side range limitation and range compression are preferably performed by different decoder-side components. Cancellation and compression may be coordinated by a DRC pre-processor.

Embodiments of the present disclosure provide an information processing method and an electronic device. The method comprises: modulating a first audio signal associated with a first channel in a first sound source file onto a first ultrasound signal to obtain a first modulated ultrasound signal; modulating a second audio signal associated with a second channel in a second sound source file onto a second ultrasound signal to obtain a second modulated ultrasound signal; transmitting a first ultrasound wave associated with the first modulated ultrasound signal, such that the first ultrasound wave, once reflected by a first reflection plane, produces a first audible sound signal corresponding to the first audio signal; and transmitting a second ultrasound wave associated with the second modulated ultrasound signal, such that the second ultrasound wave, once reflected by a second reflection plane, produces a second audible sound signal corresponding to the second audio signal.

Audio encoding methods/terminals, audio decoding methods/terminals, and audio codec systems are provided. A plurality of audio signals that are continuous is obtained. It is determined whether each audio signal of the plurality of audio signals includes a designated signal type, according to an audio parameter of each audio signal. A marked audio encoding stream is obtained by performing a marking to each audio signal as having or not having the designated signal type. The marking is used, at a decoding terminal, to perform an enhancement-process to one or more audio signals having the designated signal type. The enhancement-process is not performed to audio signals that do not have the designated signal type.

An information embedded method is used with a broadcast source and a broadcast signal receiver using a unidirectional transmission medium. The information embedded method includes steps of: storing information-push files in the broadcast signal receiver during a first time period; the broadcast source delivering broadcast signals to the broadcast signal receiver through the unidirectional transmission medium during a second time period posterior to the first time period; and the broadcast signal receiver selecting one of the information-push files according to a predetermined rule and combining the broadcast signals and information content of the selected information-push file to form an information embedded program. An information embedded system includes the broadcast source and the broadcast signal receiver.

An information embedded method is used with a broadcast source and a broadcast signal receiver using a unidirectional transmission medium. The information embedded method includes steps of: storing information-push files in the broadcast signal receiver during a first time period; the broadcast source delivering broadcast signals to the broadcast signal receiver through the unidirectional transmission medium during a second time period posterior to the first time period; and the broadcast signal receiver selecting one of the information-push files according to a predetermined rule and combining the broadcast signals and information content of the selected information-push file to form an information embedded program. An information embedded system includes the broadcast source and the broadcast signal receiver.

A method for a multi-channel acoustic event detection and classification for weak signals, operates at two stages; a first stage detects a power and probability of events within a single channel, accumulated events in the single channel triggers a second stage, wherein the second stage is a power-probability image generation and classification using tokens of neighbouring channels.

A method for processing a digital audio broadcast signal includes: separating an analog audio portion and a digital audio portion of the digital audio broadcast signal; determining the loudness of the analog audio portion and the digital audio portion over a first short time interval; using the loudness of the analog and digital audio portions to calculate a short term average gain; determining a long term average gain; converting one of the long term average gain or the short term average gain to dB; if an output has been blended to digital, adjusting a digital gain parameter by a preselected increment to produce a digital gain parameter; if an output has not been blended to digital, setting the digital gain parameter to the short term average gain; providing the digital gain parameter to an audio processor; and repeating the above steps using a second short time interval.

A method for processing a digital audio broadcast signal includes: separating an analog audio portion and a digital audio portion of the digital audio broadcast signal; determining the loudness of the analog audio portion and the digital audio portion over a first short time interval; using the loudness of the analog and digital audio portions to calculate a short term average gain; determining a long term average gain; converting one of the long term average gain or the short term average gain to dB; if an output has been blended to digital, adjusting a digital gain parameter by a preselected increment to produce a digital gain parameter; if an output has not been blended to digital, setting the digital gain parameter to the short term average gain; providing the digital gain parameter to an audio processor; and repeating the above steps using a second short time interval.