A method for buffer load management in a communication device includes storing in a first buffer of the communication device, multimedia data comprised in data packets, determining an indication of the input rate at that first buffer and adding the indication to a second buffer containing information on the input rate over time, performing an autocorrelation on a signal comprising said information on the input rate over time, finding peaks in the autocorrelation and identifying a peak in a period to perform for the peak, a crosscorrelation of the signal comprising the information on the input rate over time with a periodic signal with given phase, selecting a part of the information on the input rate stored in the second buffer, using a reference signal, determining a target latency for the first buffer, and applying the target latency to the first buffer.
The present invention relates to a method for calibrating a set of headphones comprising - performing for each person of a test group of at least 10 persons the following steps : performing a first measurement over a given frequency range of the intensity of a reference acoustic signal provided by a sound generating device to the person via a set of reference headphones with known characteristics, performing a second measurement over the given frequency range of the amplitude of a digital signal produced in the sound generating device, said digital signal being converted to a corresponding acoustic signal via a set of headphones to be calibrated, said acoustic signal having an intensity equal to the intensity of the reference acoustic signal, taking the difference between first measurement values from the first measurement and second measurement values from the second measurement as calibration values for the set of headphones to be calibrated, - performing an averaging of said calibration values to obtain resulting calibration values over the given frequency range for the set of headphones to be calibrated.
Method to handle problematic patterns in a low latency multimedia streaming environment. The present invention relates to a method for buffer load management in a communication device, comprising • storing in a first buffer of the communication device, multimedia data comprised in data packets, • determining an indication of the input rate at that first buffer-and adding said indication to a second buffer containing information on the input rate over time, • performing an autocorrelation on a signal comprising said information on the input rate over time, • finding peaks in the autocorrelation and identifying for at least one peak in a set of found peaks a period, • performing, for said at least one peak, a crosscorrelation of the signal comprising the information on the input rate over time with a periodic signal with given phase having the identified period as predominant period and determining a phase offset with respect to the periodic signal, • selecting one or more parts of the information on the input rate stored in the second buffer, using a reference signal being periodic with the identified period as predominant period and having the phase offset as determined in the previous step, • determining a target latency for the first buffer by analysing the selected parts, • applying the target latency to the first buffer by modifying the output rate and/or the input rate of the first buffer.
A method for outputting from a device having data communication capability received multimedia data with an adjustable latency comprises the steps of: receiving data packets including the multimedia data and storing the multimedia data in a buffer; measuring at least one characteristic indicative of the input rate of the received data packets; measuring a latency introduced by the buffer; obtaining information indicative of the output rate of the device and determining a target latency for the multimedia data to be outputted based on statistical information derived from the measured at least one characteristic indicative of the input rate and the obtained information indicative of the output rate; adjusting the latency so that it complies with the target latency by modifying the rate at which the multimedia data is outputted or the rate at which the multimedia data is stored in the buffer.
H04L 12/805 - Détermination de la taille optimum des paquets, p.ex. unité de transmission maximum [MTU]
H04L 21/04 - Appareils ou circuits locaux pour systèmes télégraphiques à imprimeur mosaïque à l'extrémité de réception
H04L 12/20 - Dispositions pour la fourniture de services particuliers aux abonnés pour convertir la vitesse de transmission de la vitesse inhérente d'une sous-station à la vitesse inhérente d'autres sous-stations
H04L 29/06 - Commande de la communication; Traitement de la communication caractérisés par un protocole
H04L 12/825 - Commande adaptative, à la source ou aux nœuds intermédiaires, sur réception d'avis de congestion, p.ex. X-on X-off
H04L 12/26 - Dispositions de surveillance; Dispositions de test
A method for adjusting a parameter on a consumer electronics device is arranged for outputting a hearing loss compensated signal having a plurality of parameters. The consumer electronics device comprises processing means arranged for processing an audio input signal and for generating an audio output signal which is a hearing loss compensated version of the audio input signal. The method comprises producing with the consumer electronics device the audio output signal to be presented to a user. A rotation applied to the consumer electronics device such that the rotation is in a first direction in a substantial horizontal plane and, adjusting at least one parameter relates to the audio output signal's dynamic range, whereby the rotation in the first direction corresponds to a reduction of the dynamic range and a rotation in a direction opposite to the first direction to an increase of the dynamic range, or vice versa.
A consumer electronics device is arranged for outputting a hearing loss compensated signal. The consumer electronics device comprises an operating system whereon at least one application can be run that yields a sound output signal. Wherein the consumer electronics device further comprises: a first software module adapted for rerouting the sound output signal, and a second software module adapted for receiving from the first software module the rerouted sound output signal, for performing hearing loss compensation on the rerouted sound output signal and for outputting the hearing loss compensated signal.
The present invention relates to a method for outputting from a device having data communication capability received multimedia data with an adjustable latency. The method comprises : - receiving data packets comprising said multimedia data, - storing the multimedia data in a buffer, - measuring at least one characteristic indicative of the input rate of the received data packets, - measuring a latency introduced by the buffer, - obtaining information indicative of the output rate of the device, - determining a target latency for the multimedia data to be outputted based on statistical information derived from the measured at least one characteristic indicative of the input rate and the obtained information indicative of the output rate, - adjusting the latency so that it complies with the target latency by modifying the rate at which the multimedia data is outputted or the rate at which the multimedia data is stored in the buffer.
A screening device for conducting a tone audiometry includes a tone generator, an input device, and a controller device. The controller device is arranged to repeatedly perform: selecting a test stimulus from a group of test stimuli; applying the selected test stimulus to a test person; receiving via the input device from the test person a response indicating which test stimulus was heard by the test person; and adjusting an intensity according to the received response for selecting a next test stimulus. The group of test stimuli includes (i) no tone at all, (ii) a single tone with a first frequency and a first given intensity, and (iii) a multitude of tones of a second frequency and a second given intensity. The second frequency is higher than the first frequency and the multitude of tones have a duration shorter than the duration of the single tone.
The present invention relates to a method for adjusting a parameter on a consumer electronics device, arranged for outputting a hearing loss compensated signal having a plurality of parameters. The consumer electronics device comprises processing means arranged for processing an audio input signal and for generating an audio output signal, said audio output signal being a hearing loss compensated version of the audio input signal. The method comprises : - producing with the consumer electronics device the audio output signal to be presented to a user, - sensing with the consumer electronics device a rotation applied to the consumer electronics device, said rotation being in a first direction in a substantial horizontal plane and, - adjusting at least one parameter relating to the audio output signal's dynamic range, whereby the rotation in the first direction corresponds to a reduction of the dynamic range and a rotation in a direction opposite to the first direction to an increase of the dynamic range, or vice versa, - producing with the consumer electronics device an updated audio output signal, said updated audio output signal having the at least one adjusted parameter reflecting the change to the dynamic range.
The present invention relates to a consumer electronics device arranged for outputting a hearing loss compensated signal, said consumer electronics device comprising an operating system whereon at least one application can be run that yields a sound output signal, characterised in that the consumer electronics device further comprises - a first software module adapted for rerouting the sound output signal, and - a second software module adapted for receiving from the first software module the rerouted sound output signal, for performing hearing loss compensation on the rerouted sound output signal and for outputting the hearing loss compensated signal.
A personal communication device provides hearing support, and includes an input receiving an audio signal, a programmable processor, and an output outputting the processed signal. The programmable processor performs a filtering operation on a digital version of the audio signal in a first signal path based on parameter settings and provides control logic that determines the parameter settings based on information on user preferences, on audiological information and on information on the listening situation to provide hearing loss compensation. The programmable processor has a second signal path in parallel with the first signal path that receives the digital version of the audio signal and parameter settings and determining the filter coefficients of the filtering operation based on the parameter settings and the digital version of the audio signal.
H04M 1/215 - Combinaisons avec un équipement auxiliaire, p. ex. avec pendule ou bloc-notes par des moyens de couplage non intrusifs, p. ex. coupleurs acoustiques
The present invention relates to a level detection system for estimating the level of an audio input signal to be used in a dynamic range compressor, comprising - a first auxiliary level detector arranged for receiving an audio input signal and for outputting a first estimate of the level of the audio input signal, - a second auxiliary level detector arranged for receiving either the audio input signal or the first estimate and arranged for outputting a second estimate of the level of the audio input signal, said second auxiliary level detector having a larger time constant than said first auxiliary level detector, - computation means for performing a weighing of the first estimate with a weight factor w and the second estimate with a weight factor 1–w, said weight factor w being dependent on the first and the second estimate, said computation means further arranged for summing the weighted estimations to obtain a resulting estimation of the level of the audio input signal.
H04M 1/60 - Équipement de sous-station, p. ex. pour utilisation par l'abonné comprenant des amplificateurs de parole
A61F 11/04 - Procédés ou dispositifs permettant au patient d’obtenir une perception auditive par des sens physiologiques autres que l’ouïe, p. ex. par le toucher
A61N 1/36 - Application de courants électriques par électrodes de contact courants alternatifs ou intermittents pour stimuler, p. ex. stimulateurs cardiaques
H03G 3/30 - Commande automatique dans des amplificateurs comportant des dispositifs semi-conducteurs
The present invention is related to a personal communication device arranged for providing hearing support. The personal communication device comprises an input for receiving an audio signal, programmable processing means and an output for outputting the processed signal. The programmable processing means is arranged for performing a filtering operation on a digital version of the audio signal in a first signal path based on parameter settings and for providing control logic for determining the parameter settings based on information on user preferences, on audiological information and on information on the listening situation, in which the personal communication device is used, obtained via sound environment analysis of the received audio signal and/or via sensing means of the personal communication device, so that the programmable processing means is operable as a hearing loss compensation module arranged for outputting a hearing loss compensated signal. The programmable processing means further has a second signal path in parallel with the first signal path, said second signal path comprising a module for transfer function calculation arranged for receiving the digital version of the audio signal and the parameter settings and for determining the filter coefficients of the filtering means based on the parameter settings and the digital version of the audio signal.
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