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Customers Will be Able to Stream and Enjoy More Than 100+ Music Services BERLIN, GERMANY--(Marketwired - Dec 8, 2016) - Raumfeld announces today the release of its Google Cast for audio implementation. The free update is compatible with all current Raumfeld speakers, giving customers access to more than 100+ new music apps including Google Play Music, Spotify, Deezer, TIDAL, Pandora, iHeartRadio, TuneIn, SoundCloud, Qobuz and Juke.* "Music is a constant companion for many people and we are always looking for innovative ways to enhance our customers' listening experience," said Pablo La Rosa, General Manager Music Streaming at Raumfeld. "Adding Google Cast to our products takes immersion to the next level and provides new opportunities for music lovers to discover new songs, find old favorites, create their own playlists or try out the playlists others have shared." Simply more selection More than 100+ music apps currently support Google Cast for audio and the list continues to grow. Big names like Google Play Music, Spotify, Deezer, TuneIn, Qobuz, SoundCloud, Juke and TIDAL already support the streaming technology. From today onwards, a free firmware update will allow all Raumfeld multiroom WiFi speakers to play audio from Google Cast-enabled apps. Tap, select, enjoy It couldn't be easier: Raumfeld users simply open their favorite Google Cast-enabled app and tap on the Cast icon. From there it's possible to select one or more Raumfeld speakers for playback. Once playback starts, it can be controlled from the same app. To manage the speakers or organize them into groups, use the Google Home App provided by Google. Note that a single device can be made part of different speaker groupings. It's even possible to combine Raumfeld speakers with other cast-enabled speakers. At home and on the road -- with the same apps For many people, music is a constant companion. Streaming services make it possible to listen to the perfect soundtracks for each location and mood. They also provide a way for music lovers to discover new songs and find old favorites, create their own playlists or try out the playlists other users have made public. All personal settings, titles, playlists and music downloads are always available -- on the go or at home. With Google Cast for audio, an album enjoyed on headphones during a commute can be effortlessly transferred to a pair of hi-fi speakers at home. For more information about Raumfeld and its line of premium speakers, please visit https://us.raumfeld.com/. About Raumfeld Raumfeld was founded in 2008 on the belief that streaming is the future of music listening. In 2010, Raumfeld was acquired by Berlin audio manufacturer, Lautsprecher Teufel, to form The Berlin Acoustics Group. Teufel's more than 35 years' experience creating quality loudspeakers is expressed in Raumfeld's premium audio hardware. Raumfeld is known for its multi-room WiFi audio systems that now feature Google Cast, allowing for access and enjoyment of 100+music services along with private collections and the cloud. The German-engineered speakers support digital files and play them back in true high fidelity, and all system functionality can be intuitively controlled via a free app for iOS and Android smart devices. For more information about Raumfeld, please visit http://www.raumfeld.com/ and follow us on Facebook at www.facebook.com/Raumfeld. About Teufel Audio Founded in 1979 in Berlin, Teufel Audio has grown into one of the largest German audio manufacturers and Europe's #1 direct seller of loudspeaker systems. The Teufel product portfolio includes stereo, home cinema, gaming sound, headphones, WiFi streaming and Bluetooth speakers. In addition, Teufel offers the largest selection of THX certified speakers in the world. The proud Berliners always strive to provide the very best sound at the fairest prices. Countless awards and commendations attest to the company's high standards and winning product designs. Teufel Audio products are exclusively available via direct sale. For more information about Teufel, please visit www.teufelaudio.com.


PubMed | Swedish Defence Research Agency, International Association of Oil and Gas Producers, Whale and Dolphin Conservation, Polytechnic University of Catalonia and 16 more.
Type: | Journal: Advances in experimental medicine and biology | Year: 2015

The European Marine Strategy Framework Directive requires European member states to develop strategies for their marine waters leading to programs of measures that achieve or maintain good environmental status (GES) in all European seas by 2020. An essential step toward reaching GES is the establishment of monitoring programs, enabling the state of marine waters to be assessed on a regular basis. A register for impulsive noise-generating activities would enable assessment of their cumulative impacts on wide temporal and spatial scales; monitoring of ambient noise would provide essential insight into current levels and any trend in European waters.


Cure C.,Acoustics Group | Cure C.,CNRS Neuroscience Paris-Saclay Institute | Cure C.,University Paris - Sud | Mathevon N.,CNRS Neuroscience Paris-Saclay Institute | And 2 more authors.
Behavioural Processes | Year: 2016

Vocal recognition is an important process allowing partners' reunion in most seabirds. Although the acoustic basis of this recognition has been explored in several species, only a few studies have experimentally tested the acoustic coding-decoding strategy used for mate identification. Here, we investigated mate recognition in the Scopoli's shearwater (Calonectris diomedea) by conducting playbacks of calls with modified acoustic features. We showed that females and males in a seabird species with a moderate vocal dimorphism are likely to share the same coding-decoding rule for vocal mate identification. Specifically, a disruption of call temporal strsucture prevented mate recognition in both sexes, in line with the parameters previously identified as supporting an individual signature. Modifications of spectral cues and envelope structure also impaired recognition, but at a lesser extent: almost half of the tested males and females were still able to recognise their partner. It is likely that this equal ability of female and male Scopoli's shearwaters to vocally recognise their partner could be found in other seabirds. © 2016 Elsevier B.V.


Low K.R.,Aerojet Rocketdyne | Low K.R.,Acoustics and Aeromechanics Group | Bush R.H.,Aerojet Rocketdyne | Bush R.H.,Exhaust Systems Group | And 2 more authors.
46th AIAA Fluid Dynamics Conference | Year: 2016

Emerging embedded exhaust systems introduce wall bounded jets with significant unsteady aero forcing that can be structurally limiting. Experimental studies carried out at United Technologies Research Center were used as a canonical dataset for the comparison of both Steady RANS and Hybrid LES simulations of the unsteady wall-pressure fluctuations generated by a high aspect ratio rectangular jet. The frequencies of interest for structural fatigue are relatively low and LES computations with spatio-temporal resolution consistent with these frequencies are now affordable. This paper presents an initial evaluation of the ability of relatively low spatial resolution Hybrid LES calculations to accurately compute low frequency RMS pressure fluctuations, and just as importantly, the ability to preserve the accuracy of time averaged steady flow quantities as compared to the Steady RANS calculations. It is hoped that the issues raised here will lead to additional research and focus on methods for verification and validation of Hybrid LES and unsteady methods for practical applications, and methods to increase the accuracy of LES methods for predicting the correct time mean and unsteady flowfields. © 2016, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.


PubMed | University Utrecht, University of Strasbourg, Acoustics Group and CNRS Hubert Curien Multi-disciplinary Institute
Type: | Journal: Scientific reports | Year: 2015

Despite the quintessential role that music plays in human societies by enabling us to release and share emotions with others, traces of its evolutionary origins in other species remain scarce. Drumming like humans whilst producing music is practically unheard of in our most closely related species, the great apes. Although beating on tree roots and body parts does occur in these species, it has, musically speaking, little in common with human drumming. Researchers suggest that for manual beating in great apes to be compared to human drumming, it should at least be structurally even, a necessary quality to elicit entrainment (beat induction in others). Here we report an episode of spontaneous drumming by a captive chimpanzee that approaches the structural and contextual characteristics usually found in musical drumming. This drumming differs from most beating episodes reported in this species by its unusual duration, the lack of any obvious context, and rhythmical properties that include long-lasting and dynamically changing rhythms, but also evenness and leisureliness. This performance is probably the first evidence that our capacity to drum is shared with our closest relatives.


Colin Y.,Airbus | Colin Y.,Numerical Acoustics Group | Blanc F.,Airbus | Blanc F.,Numerical Method Aerodynamic Group | And 6 more authors.
18th AIAA/CEAS Aeroacoustics Conference (33rd AIAA Aeroacoustics Conference) | Year: 2012

This paper is the second part of a series of three papers dedicated to the prediction of low-speed interaction noise of an isolated Contra-Rotating Open Rotor (CROR). The objective is to investigate the URANS chorochronic approach for computing the unsteady flow across both rotors. The stress is to be put on the correct description and propagation of the wake deficit, which is essential for capturing the unsteady loading onto the rear row and thus the resulting interaction noise. Chorochronic methods are attractive because they require the computation of a single channel only and thus are less costly than full-annulus CFD computations (such as sliding mesh or Chimera techniques). Therefore, the chorochronic technique is used in this study to investigate various mesh topologies. It is shown that the method presents very good agreement with experimental data in absolute levels at a very reasonable cost. © 2012 by The Authors and AIRBUS S.A.S.


Harfield C.,University of Oxford | Fury C.R.,University College London | Memoli G.,Acoustics Group | Jones P.,University College London | And 2 more authors.
Ultrasound in Medicine and Biology | Year: 2016

There is increasing interest in the use of microbubble contrast agents for quantitative imaging applications such as perfusion and blood pressure measurement. The response of a microbubble to ultrasound excitation is, however, extremely sensitive to its size, the properties of its coating and the characteristics of the sound field and surrounding environment. Hence the results of microbubble characterization experiments can be significantly affected by experimental uncertainties, and this can limit their utility in predictive modelling. The aim of this study was to attempt to quantify these uncertainties and their influence upon measured microbubble characteristics. Estimates for the parameters characterizing the microbubble coating were obtained by fitting model data to numerical simulations of microbubble dynamics. The effect of uncertainty in different experimental parameters was gauged by modifying the relevant input values to the fitting process. The results indicate that even the minimum expected uncertainty in, for example, measurements of microbubble radius using conventional optical microscopy, leads to variations in the estimated coating parameters of ∼20%. This should be taken into account in designing microbubble characterization experiments and in the use of data obtained from them. © 2016 The Authors.


PubMed | University of Oxford, Acoustics Group and University College London
Type: Journal Article | Journal: Ultrasound in medicine & biology | Year: 2016

There is increasing interest in the use of microbubble contrast agents for quantitative imaging applications such as perfusion and blood pressure measurement. The response of a microbubble to ultrasound excitation is, however, extremely sensitive to its size, the properties of its coating and the characteristics of the sound field and surrounding environment. Hence the results of microbubble characterization experiments can be significantly affected by experimental uncertainties, and this can limit their utility in predictive modelling. The aim of this study was to attempt to quantify these uncertainties and their influence upon measured microbubble characteristics. Estimates for the parameters characterizing the microbubble coating were obtained by fitting model data to numerical simulations of microbubble dynamics. The effect of uncertainty in different experimental parameters was gauged by modifying the relevant input values to the fitting process. The results indicate that even the minimum expected uncertainty in, for example, measurements of microbubble radius using conventional optical microscopy, leads to variations in the estimated coating parameters of 20%. This should be taken into account in designing microbubble characterization experiments and in the use of data obtained from them.


Colin Y.,Airbus | Colin Y.,Numerical Acoustics Group | Carazo A.,Airbus | Carazo A.,Acoustics Group | And 5 more authors.
18th AIAA/CEAS Aeroacoustics Conference (33rd AIAA Aeroacoustics Conference) | Year: 2012

This paper is the first part of a series of three papers dedicated to the prediction of low-speed interaction noise of an isolated contra-rotating open rotor (CROR). The objective of this study is to assess available analytical and numerical methodologies in terms of robustness, performance and accuracy. The analytical procedure follows the classical Sears' theory, while the numerical procedure follows a two-step approach based on CFD coupled with the analogy of Ffowcs Williams-Hawkings (FWH). Concerning the numerical tools, both chorochronic (single-passage) and Chimera (full-annulus) approaches are considered. The prediction of interaction noise requires fulfilling three modelling steps: the aerodynamic perturbations, the rotor unsteady blade response and the resulting noise radiation. Comparisons with noise measurements are provided. It is shown that the results are highly sensitive to the description of the incoming wake deficit. The chorochronic approach, as a single blade passage is computed, allows the use of much finer meshes than the Chimera approach and requires a lower computational cost. This approach is therefore highly attractive for computing isolated axisymmetric configurations. © 2012 by The Authors, AIRBUS S.A.S and Rolls-Royce.


Revel G.M.,Marche Polytechnic University | Castellini P.,Marche Polytechnic University | Chiariotti P.,Marche Polytechnic University | Tomasini E.P.,Marche Polytechnic University | And 2 more authors.
Optical Engineering | Year: 2011

The present work deals with the analysis of problems and potentials of laser vibrometer measurements inside vehicle cabins in running conditions, with particular reference to helicopters where interior vibro-acoustic issues are very important. This paper describes the results of a systematic measurement campaign performed on an Agusta A109MKII mock-up. The aim is to evaluate the applicability of scanning laser Doppler vibrometer (SLDV) for tests in simulated flying conditions and to understand how performances of the technique are affected when the laser head is placed inside the cabin, thus being subjected to interfering inputs. First a brief description of the performed test cases and the used measuring set-ups are given. Comparative tests between the SLDV and accelerometers are presented, analyzing the achievable performances for the specific application. Results obtained measuring with the SLDV placed inside the helicopter cabin during operative excitation conditions are compared with those performed with the laser lying outside the mock-up, these last being considered as reference measurements. Finally, in order to give an estimate of the uncertainty level on measured signals, a study linking the admitted percentage of noise content on vibrometer signals due to laser head vibration levels will be introduced. © 2011 Society of Photo-Optical Instrumentation Engineers (SPIE).

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