the following description of exemplary embodiment ( s ) is merely illustrative in nature and is in no way intended to limit the invention , its application , or uses . exemplary embodiments are directed to or can be operatively used to control various wired or wireless earpieces devices ( e . g ., earbuds , headphones , ear terminal , behind the ear devices or other acoustic devices as known by one of ordinary skill , and equivalents ). note that other non - earpiece devices can also be controlled and the invention is not limited by controlling an earpiece . processes , techniques , apparatus , and materials as known by one of ordinary skill in the art may not be discussed in detail but are intended to be part of the enabling description where appropriate . for example specific computer code may not be listed for achieving each of the steps discussed , however one of ordinary skill would be able , without undo experimentation , to write such code given the enabling disclosure herein . such code is intended to fall within the scope of at least one exemplary embodiment . additionally exemplary embodiments are not limited to earpieces , for example some functionality can be implemented on other systems with speakers and / or microphones for example computer systems , pdas , blackberry ® smartphones , cell and mobile phones , and any other device that emits or measures acoustic energy . additionally , exemplary embodiments can be used with digital and non - digital acoustic systems . additionally various receivers and microphones can be used , for example mems transducers , diaphragm transducers , for example knowles &# 39 ; fg and eg series transducers . notice that similar reference numerals and letters refer to similar items in the following figures , and thus once an item is defined in one figure , it may not be discussed or further defined in the following figures . encouraging usage of a high - visibility marketing tool for consumers is enhanced by providing an incentive for the user . the present invention discloses a marketing device in the form of a user - wearable badge or item of jewelry that promotes wearability based upon the device serving functional control of at least one audio device . additionally , the invention provides for bi - directional in - situ processing of audio signals , and provides the ability to record the user &# 39 ; s ambient sound field using one or more microphones housed within the remote control device , or to monitor audio content user a loudspeaker that is housed in the remote control device . in at least one exemplary embodiment of the present invention disclosed herein can undertake audio signal processing from a first portable media device such as a pmp , and transmits the processed audio to a second device , such as a headset . in at least one exemplary embodiment of the present invention , this audio signal processing can be bi - directional , i . e . simultaneously processing audio from a first audio device to a second whilst processing audio from the second device and then transmitting this processed signal to the first device . the present invention furthermore an be designed as a marketing tool whereby the remote control unit undertaking the signal processing and controlling the portable media player devices is used to display a product logo or other insignia . at least one exemplary embodiment of the present invention is designed to promote enhanced visibility for a marketing campaign , while it can control media devices , and is further designed to affect functionality of audio devices such as audio reproduction and recording with a user - worn headset . at least one exemplary embodiment of the present invention allows for activation of recording and subsequent playback of a user &# 39 ; s local ambient sound field using microphones mounted near or at the entrance to the user &# 39 ; s occluded eardrum ( in other words ; a binaural recording ) or microphones housed within the remote control device itself . at least one exemplary embodiment of the present invention may simultaneously operate a plurality of devices , and at least one exemplary embodiment of the present invention can be designed to operate at least one headset for purposes such as audio recording , monitoring and reproduction , using loudspeakers and microphones embedded in the headset and / or loudspeakers and microphones embedded in the remote control device . furthermore , at least one exemplary embodiment the present invention can be designed to be worn by the user as jewelry , such as in the form of a wrist strap or necklace . also , the remote control device in the present invention allows for user customization , such as different colors , different clasp mechanisms ( such as fabric or metallic straps ) using a web - based customization process . at least one exemplary embodiment of the present invention provides for heart - rate information ( e . g . beats - per - minute ) to be transmitted to the user - worn headset system and to ( optionally ) auralize the auditory display using personalized or non - personalized head - related transfer function ( hrtf ) processing . this could give the effect of spatializing a target or optimum heart - rate feature ( e . g . bpm or blood pressure ) so as to act as an incentive for the user . for instance , if the user &# 39 ; s ideal bpm is higher than the present bpm , then a spatial sound image ( e . g . a beep or reproduced music ) could be spatialized using hrtf processing to seem in front of the user . furthermore , at least one exemplary embodiment of the current invention allows for transmission of the user &# 39 ; s current blood - related health ( e . g . heart rate ) to be logged and / or transmitted to a second party , such as an emergency worker or military hq to inform the remote party of the health of the user . at least one exemplary embodiment is directed to a headset which can be used with the present invention as is illustrated in fig1 . the embodiment is a small headphone that is inserted in the ear of the user . the headphone can include the sound - attenuating earplug 100 inserted into the ear canal . at the inner ( eardrum - facing ) surface of the plug , an ear - canal loudspeaker receiver ( ecr ) 102 is located for delivering the audio signal to the listener . at the outer ( environment - facing ) surface of the plug , an ambient - sound microphone ( asm ) 104 is located . both the loudspeaker 102 and the microphone 104 are connected to the electronic signal processing unit 106 . the signal processing unit 106 also has a connector 108 for input of the audio signal . this connector medium 108 may be a wireless signal such as a conventional radio or bluetooth protocol . additionally , an ear - canal microphone ( ecm ) 110 is placed at the inner ( eardrum - facing ) surface of the plug and an external loudspeaker 112 is placed on the outer ( environment - facing ) surface of the plug for performing other functions of the headphone system not described here ( such as monitoring of sound exposure and ear health conditions , headphone equalization , headphone fit testing , noise reduction , and customization ). fig2 gives an overview of the user wearable remote control device showing components that may be present or absent depending on the particular embodiment . the remote control device can include , as its principle components , a user interface 134 , which may include a miniature keyboard , one or more scroll wheels , push buttons , or ( in the exemplary embodiment ) a touch - sensitive screen that can also be used as a visual display 136 , or a combination of the above . the central processing unit 144 is a general purpose processor and in some embodiments is combined with an application - specific integrated circuit ( asic ) ( not shown ), or in some other combination involving a general purpose processor and an asic combined in one unit ( such as an fpga ). the processor 144 undertakes control of the transmission of audio input and output signals to and from the computer memory ram unit 138 , signal processing for the low battery warning system 140 , control and processing of data from the local ( wired ) biometric sensor ( e . g . heart - rate detector ) 142 or remote , second biometric sensor 143 , and control of the audio and control data communication assembly 146 . the processor 144 detects the presence of a power ( battery ) charging device such as an inductance or wired charging unit , and may initiate charging of the built - in battery with system 141 . computer memory in ram form 138 for containing user data or audio , and computer memory in rom form 139 for storing program code , are housed in the remote control device assembly . in some embodiments there exists a loudspeaker 147 for monitoring audio signals transmitted from different audio devices which are controlled , such as mobile - phones or pmps . this allows the user or other individuals to monitor such audio content without necessarily wearing a headset . loudspeaker driving circuitry 145 is housed within the remote control assembly , consisting of a digital - to - analog converter and analog amplification and frequency equalization circuitry to compensate for the sensitivity of the loudspeaker driver . in some embodiments , the loudspeaker assembly is detachable using a wired connection or self - powered wireless assembly . another embodiment includes a microphone 151 for monitoring the local ambient sound field of the remote control device , and for transmitting the resulting microphone audio signal to different audio devices such as mobile - phones or pmps . this allows the user or other individuals to speak directly into a microphone that may be mounted on the wrist - worn remote control device , which is especially useful in high - noise environments to bring the microphone closer to the individual &# 39 ; s mouth . the microphone receiving circuitry 149 is housed within the remote control assembly , consisting of a digital - to - analog converter and analog amplification and frequency equalization circuitry to compensate for the sensitivity of the microphone . in some embodiments , the microphone assembly is detachable using a wired connection or wireless self - powered assembly . the data communications assembly 146 undertakes control of audio and non - audio ( control ) data between the central processor and other audio devices such as a pmp 148 ( fig3 b ) and one or more headsets such as that described in fig1 . the audio data may be relayed directly from one device to the other , or may be processed first by the central processor 144 . the communication assembly 146 may consist of either or both wired and wireless communication devices ; such as radio transceivers for bluetooth or conventional radio audio and non - audio data transmission and associated signal processing assemblies ( such as adc and dacs , signal amplifiers etc . familiar to those skilled in the art ), or assemblies for directly transceiving analog audio signals such as with one or more conventional stereo ⅛ ″ input jacks or optical spdif input jacks . fig3 a gives an overview of the user wearable remote control device 116 in relation to various audio technology devices and systems it is intended to be used with . the connections to these devices and systems are shown as bi - directional or single - ended arrows . as shown in box legend 132 , these arrows may be double - walled ( a , b ) or single walled ( c , d ). the notation used through the drawings is that mixed audio and control signals are represented with double - walled arrows , and control - only signals with single walled . control signals mean any signal that does not directly represent audio signals . the direction of the arrow indicates the direction of audio or control signal flow from one unit to the other , as familiar to those skilled in the art . typical audio devices the remote control device is used with in its exemplary embodiment are : cell phones 112 , headset systems 114 and 122 such as that described in fig1 ( but conventional headphone systems could also be used ); user biometric sensors 118 ; portable media players 120 such as hard - drive or ram - chip mp3 players , digital radio players , portable dvd players or portable electronic gaming units ; and computer devices 124 such as laptops , pdas , or desktop computers . the audio devices in the previous list may be used simultaneously with remote control device 116 and at least one headset 114 , or in any combination thereof . the computer devices 124 may be connected to the internet 126 allowing the user to upload audio content ( from audio content server 129 ) to a pmp device 120 via the remote control device 116 or directly from the computer device 124 to the pmp 120 . audio content may also be downloaded via computer device 124 , the internet 126 to a back - up audio data server 130 . such audio content may be from recordings made with asm signals ( from asm 104 ( fig1 )), microphones 151 ( fig2 ) housed in the remote control assembly or ear canal microphone signals ( from ecm 110 ( fig1 )) with one or more headsets 114 , 122 . these recorded audio signals may also be analyzed by an audio forensic analysis system 128 for purposes such as speech - to - text analysis , or accident determination . data analysis by forensic system 128 may be presented to the user via a visual or auditory display with the remote control device 116 . the optional loudspeaker 147 and microphone 151 housed shown in fig2 are not shown in this figure . fig3 b gives a more detailed overview of user wearable remote control device and some particular audio devices described in the embodiment presented in fig3 a , as well as biometric data analysis system 145 . the central processing unit 144 may undertake audio signal processing on input signals from a number of devices , such as a cell - phone 112 and / or pmp 148 ( e . g . mp3 player , portable dvd player ). fig3 b also illustrates that headsets 114 , 122 may include respective input / output ( io ) and cpu 150 , sound generator ( receiver ) 152 and sound sensor ( microphone ) 154 . fig4 a and 4b show another embodiment of the remote control device shown in fig3 a and 3b . the difference between the two embodiments is that in fig4 a and 4b there is no transmission of audio signals through the remote control device itself ; in this embodiment the audio signals are transmitted directly between audio devices such as a pmp 120 and headset 114 . fig5 shows example artwork of the current invention in a particular embodiment as a tool for increasing awareness of a non - commercial listening awareness campaign . in the particular example , the logo “ keep listening ” 160 is engraved on the remote control device bracelet 161 , and shows that the user endorses this campaign and advertises the campaign with a fashionably pleasing aesthetic . the controls for the device in this particular embodiment consist of two simple buttons 156 , 158 which may be used to control volume level , power ( e . g . by pressing the two buttons together ), or controlling the currently auditioned song track ( e . g . advancing track by holding down button 158 ). signal processing and battery power may be contained within the body of the bracelet 161 , and the control data transmission circuitry may use a wireless system with the wireless aerial embedded in the user - worn remote control . fig6 gives an overview of a combined user - interface display and response screen , as might be worn on a wrist band ( the screen may wrap around with a flexible or articulated joint ), or as a necklace pendant . alternatively , a smaller screen may be used as shown in the lowest figure . in some embodiments , the screen may be non touch sensitive , and scrolling wheels and buttons used to select different operating modes and system control parameters . 1 . at least one exemplary embodiment of the remote control system for controlling reproduction of audio from a first media device ( such as a pmp ) with a second sound reproduction device ( such as a headset ). the remote control device can be worn anywhere on the user &# 39 ; s body or attached to the user &# 39 ; s clothes . for instance , the remote control could be worn as a finger ring , arm or leg bracelet , a pendant for a necklace , or on a waist - belt . a marketing logo can be incorporated in the device , such as an engraving on a bracelet advertising a particular brand or public awareness campaign . audio signal processing from the first media device may be undertaken on the remote control device with an embedded asic , and this processed signal transmitted to a second audio reproduction and / or recording device whilst simultaneously processing signals from the second device before transmission to the first device . this user - worn functional jewelry can include : a . an attaching device such as a metallic or plastic ring which may be flexible or contain elastic components to fix the remote control device to the user &# 39 ; s arm , leg or finger , or contain a clasp to fix to a necklace or waist - belt . b . a user interface for controlling media devices such as portable media players ( pmps ) to affect control of these media devices , such as level of audio content , navigation of audio playback and recording ( for example ; pause , stop , play , next track , previous track etc .). c . a user interface for affecting processing of audio signals from media devices such as pmps for purposes such as frequency equalization , level control , adaptive noise control filtering . d . a user interface for controlling audio reproduction and / or sound recording devices such as at least one headset worn by either the user or by multiple people including the user . e . at least one application - specific integrated circuit ( asic ) or a general - purpose ic housed within the body of the user wearable remote control device to undertake either or both audio signal processing and control data processing such as decision logic and processing the user interface signals . f . a control data communication system such as a wireless or wired data transmitter to transfer data . g . an optional audio data transmission system for controlling audio playback on a first audio device , or between a plurality of audio devices such as a pmp and a headset . h . a control data transmission system for functions such as playback , recording or activation of audio devices such as pmps ( see part c ). i . a battery power system that can be recharged using a wireless induction or wired system . j . non - volatile and / or volatile ram type computer memory . k . non - volatile and / or volatile rom type computer memory . 2 . another exemplary embodiment includes the system of embodiment 1 , wherein a user visual or auditory display exists to inform the user of the functional status of the remote control device and ( in some embodiments ) the functional status of other audio devices . this visual display provides the following functionality ; a . a user display to inform the user of the audio recording status of the user worn headset , such as the remaining record time , audio signal bit rate , number of audio channels , audio signal level and frequency content . this may be as a visual indicator on a user display and / or an auditory display system whereby speech or non - speech sounds are generated with increasing perceptual intrusion ( e . g . increasing level ) as the remaining computer memory or hard - disc level of one of these audio devices decreases . b . a user display to inform the user of the audio playback status of the user worn headset , such as audio signal bit rate , number of audio channels , audio signal level and frequency content . c . a visual display to inform other individuals ( i . e . other than the user ) that the remote control device user is listening to audio content ( audio data , e . g . music or a voice audio signal ) and may therefore not wish to be disturbed or may not be able to hear the other individuals . a different colored light may be used to represent different user listening states . 3 . another exemplary embodiment includes the system of embodiment 1 , wherein the at least one sound reproduction device of part ( d ) comprises : a . an earplug that forms a seal in the ear canal of the user . b . an earphone body that may be separate from the earplug that houses the electronic components of the earphone device . c . one or more optional pressure equalization tubes to equalize the pressure on the ear - drum side of the earplug relative to the ambient pressure . d . an assembly to monitor the acoustic field in a user &# 39 ; s immediate environment using one or more ambient sound microphones ( asms ) to monitor sound at the entrance to one or both occluded ear canals . e . a signal processing circuit to amplify the signal from the asm ( s ) and to equalize for the frequency sensitivity of the microphones . f . an optional diaphragm to cover the asm and provide the following exemplary capabilities : passive beam - forming using holes aligned in a predetermined direction . these holes may be filled with a material different from the material of the diaphragm . the directional sensitivity of the asm may therefore by increased ; e . g . in the direction of the user &# 39 ; s mouth or perpendicular to the direction of the user &# 39 ; s head so as to maximize the degree of electronic separation between asm signals in opposite earphone devices ( i . e . the left and right earphone of a pair worn by the same user ). acoustically tuned sound absorbers to compensate for the frequency response of the asm transducers . for instance , the diaphragm may be configured so as to transmit those frequencies that the asm is less sensitive to with less attenuation . wind , headwear - abrasion , dust and debris shield to protect the asm . use as a marketing tool for displaying a product brand or logo . use as a user interface , e . g . a button for activating a particular “ sound pass - through ” mode . use as a display to indicate operational status of the earphone device using front - lit or backlit illuminating means e . g . a multicolored led . use as a diaphragm for creating sound to be monitored by other individuals near the earphone user , using a sound - creating object coupled to the diaphragm . g . an assembly to monitor the acoustic field in an occluded ear canal consisting of a microphone mounted in an earplug that forms an acoustic seal of one or both ear canals of a user . ( this is the ear canal microphone ; ecm .) h . a signal processing circuit to amplify the signal from the ecm and to equalize for the frequency sensitivity of the ecm . i . an optional signal processing circuit to amplify and process an audio content input signal ( e . g . from a personal media player , cell phone , or automatically - generated auditory warning signal ). j . a microprocessor assembly to undertake digital or analog signal processing on the ecm and asm signals for the vox . k . a battery , low - battery warning , and battery charging assembly to power the electronic circuits in the earphone device . l . a wired or wireless communications assembly to transmit audio and / or control signals to a remote control device . m . a wired or wireless communications assembly to transmit audio signals and control data signals from the ecm and asm signals from one earphone device to the other earphone device . n . a wired or wireless communications assembly to transmit audio and / or control signals and control data signals from both earphone devices to an external system , such as a voice communication system or a second signal processing unit . 4 . another exemplary embodiment of the present invention of embodiment 1 additionally comprises sound reproduction means , such as a loudspeaker , for monitoring audio signals transmitted from different audio devices that are controlled , such as mobile - phones or pmps . this allows the user or other individuals to monitor such audio content without necessarily wearing a headset . loudspeaker driving circuitry may be housed within the remote control assembly . in some exemplary embodiments , the loudspeaker assembly is detachable using a wired connection or wireless self - powered assembly . 5 . another exemplary embodiment of the present invention of embodiment 1 additionally comprises a microphone for monitoring the local ambient sound field of the remote control device , and for transmitting the resulting microphone audio signal to different audio devices such as mobile - phones , computing devices or pmps , or for storing the recorded microphone signal on ram computer memory embedded within the remote control device . this allows the user or other individuals to speak directly into a microphone that may be mounted on the wrist - worn remote control device , which is especially useful in high - noise environments to bring the microphone closer to the individual &# 39 ; s mouth . the microphone receiving circuitry is housed within the remote control assembly , consisting of a digital - to - analog converter and analog amplification and frequency equalization circuitry to compensate for the sensitivity of the microphone . in some exemplary embodiments , the microphone assembly is detachable using a wired connection or wireless self - powered assembly . 6 . another exemplary embodiment includes the system of embodiment 1 , wherein the system includes a low battery warning system to inform the user of the remaining battery status of the remote control device , and the remaining battery status of other audio devices which the remote control device communicates with , such as audio headsets , pmps , mobile phone . depending on user specifications , the system either : a . presents a series of audio warning signals . these signals may be stored on computer memory or on a hard drive in the remote control device or on a separate media storage device such as a pmp . the signals may be speech , such as a verbal message indicating remaining battery time for a particular device , or may be non - speech , such as a bleep . the auditory warning sound may become increasingly intrusive as the battery of the particular device loses charge . b . updates a visual display with information and a warning message ; c . automatically attenuates ( attenuation ) audio output using the dsp ; d . stops audio playback entirely ; e . generates a tactile warning ( vibration , pressure , etc ); f . or any combination of the methods described above . 7 . another exemplary embodiment for the present invention embodiment is contrary to the system of embodiment 1 in that audio signals are not communicated through the remote control device from a first audio device ( e . g . pmp , mobile phone ) to a second , but rather the audio signal is transmitted directly from the first device to the second , and the remote control affects audio reproduction by transmitting and receiver audio control signals ( i . e . not audio data signals ). 8 . another exemplary embodiment for the present invention embodiment is a mix of the systems of embodiments 1 and 7 whereby some audio signals are communicated through the remote control device from one audio device ( e . g . pmp , mobile phone ) to the headset , but other audio signals may be communicated directly between audio devices . 9 . another exemplary embodiment of the remote control device is for controlling the reproduction of audio from a personal media player ( pmp ) and the recording of audio signals to the same pmp . although only one pmp is used in this embodiment , a plurality of headsets may be used to reproduce the pmp audio from and to sample the personal sound field of the headset user ( s ). 10 . another exemplary embodiment of the remote control device is for a permanent message to be visible on the device to increase visibility and show the user &# 39 ; s support of a public service campaign such as hearing - loss awareness or another health - related campaign . 11 . another exemplary embodiment of the remote control device is for a user - customizable style , whereby the colors of components comprising the wearable remote control can be customized using an online web - based program . 12 . another exemplary embodiment of the remote control device is for a dynamically changing physical appearance , whereby a text message and / or audio message and / or logo may be displayed on a screen on the remote control device . the screen can be programmed and altered dynamically and may use a plasma screen display , led or lcd display . the screen may be dynamically changed by sensing a signal transmitted from , for example , a vending machine , a retail store , or a museum . 13 . another exemplary embodiment of the remote control device is for a detecting a transmitted radio signal from a “ transmitting beacon ” and informing the user with an auditory message transmitted from the remote control device to the headset . the signal may be transmitted from , for example , a vending machine , a retail store , or a museum , and the user may be informed using either a speech - message or non - speech message ( e . g . music or a product signature “ ear - con ”). the user may be informed of the location of the transmitting beacon using either a verbal message ( e . g . informing the user of the street address with an auditory or visual display message ), or with an auditory message which may be spatialized to help the user locate the transmitting beacon . 14 . another exemplary embodiment of the remote control device provides for the monitoring and display of the device - user &# 39 ; s heart rate using electro - cardiac sensors mounted on the device assembly or on a separate assembly . the display uses an auditory beacon whereby a beep - like pulse is sounded synchronously with the user &# 39 ; s heartbeat . this particular embodiment can include : a . a biometric sensor to detect electro - cardiac signals on the users skin , such as with sensors mounted on either side of the wrist band housing the remote control device , or on a chest or upper - arm strap . b . a visual display to inform the user of their current cardiac status ( e . g . heart rate or blood pressure ). c . alternative to or complimentary to the visual display , an auditory display may be used to inform the user of the heart rate . this could be with a verbal message informing the user of the heart rate at a time interval which may be user defined ( e . g . every minute ), or the heart rate may be related to a frequency pitch of a non - verbal message , e . g . a beep ( short sine wave ) with a pitch that increases with increasing pulse rate . d . a heart - rate logging system whereby the user &# 39 ; s heart - rate profile is stored in computer memory in either the remote control device or on a separate assembly such as a pmp . e . a heart - rate data log communication system , whereby the heart rate profile may be transmitted using a wired or wireless data communication system directly to a computing device for analysis and for prognosis and advice to the user to seek medical consultation if any indication of cardiac health problems are detected . 15 . another exemplary embodiment includes a spatial auditory display whereby signal filtering of an audio signal using , for instance , personalized or semi - personalized head related transfer functions ( hrtf ), may be undertaken to act as an auditory beacon indicating the user &# 39 ; s current and target heart rate . in addition to the previous embodiment , this particular embodiment includes : a . an optional hrtf acquisition process whereby the user &# 39 ; s personal or non - personal hrtf is acquired . there are many methods for acquiring personalized hrtfs disclosed in prior art such as using the reciprocity technique . non - personalized hrtfs may be acquired by asking the user to select hrtf mixes of audio recordings according to particular sound characters , such as perceived separation of audio images or perceived naturalness or intelligibility ( which may be measured with standard intelligibility tests known to those skilled in the art ). b . audio signal processing circuitry to filter audio signals ( e . g . a speech message , music , or beep - pulse which is synchronized with the user &# 39 ; s heart beat ) so that the perceived sound image is located at an ego - centric distance related to the discrepancy between the user &# 39 ; s actual and target heart rate . for instance , if the target and actual heart - rate are the same , the audio signal processing may be such that the image is located within the user &# 39 ; s head . if the target is greater than the actual heart - rate , the audio signal processing may be such that the auditory image is located in front of the user &# 39 ; s head . such audio signal processing may include processing the audio content with hrtfs measured at different distances ( i . e . ego - centric range ) to the user &# 39 ; s head . other methods of controlling auditory image distance include affecting the ratio of artificial sound reflections ( such as reverberation ) to direct sound ( i . e . the original audio content ). 16 . a particular embodiment of the above systems includes an application - specific integrated circuit ( asic ) within the remote control assembly for undertaking dsp such as audio signal filtering for active noise control ( familiar to those skilled in the art ), equalization , voice recognition , and non - voice signal recognition on audio signals from , for instance , microphones on the user - worn headset , input audio content from a pmp or mobile - phone . 17 . another exemplary embodiment of the present invention is for controlling video media players , such as portable dvd players , in addition to simultaneously controlling and processing audio signals . 18 . another exemplary embodiment includes the system of embodiment 2 , wherein a user visual or auditory display informs the user of a personal sound exposure history . the sound pressure level ( spl ) may be measured using microphones in the user &# 39 ; s occluded ear canal , or externally with microphones at or near to the entrance to the user &# 39 ; s ear meatus , or in some embodiments using microphones housed in the remote control device . the remote control device may display the “ spl dose ” as a numerical value corresponding to the accumulated dose as a percentage before temporary or permanent threshold shift may occur , or it may display a remaining time value , which informs the user how long ( e . g . in minutes ) the user has until temporary or permanent threshold shift may occur based on current ambient sound levels and levels of reproduced audio content . while the present invention has been described with reference to exemplary embodiments , it is to be understood that the invention is not limited to the disclosed exemplary embodiments . the scope of the following claims is to be accorded the broadest interpretation so as to encompass all modifications , equivalent structures and functions of the relevant exemplary embodiments . for example , if words such as “ orthogonal ”, “ perpendicular ” are used the intended meaning is “ substantially orthogonal ” and “ substantially perpendicular ” respectively . additionally although specific numbers may be quoted in the claims , it is intended that a number close to the one stated is also within the intended scope , i . e . any stated number ( e . g ., 90 degrees ) should be interpreted to be “ about ” the value of the stated number ( e . g ., about 90 degrees ). thus , the description of the invention is merely exemplary in nature and , thus , variations that do not depart from the gist of the invention are intended to be within the scope of the exemplary embodiments of the present invention . such variations are not to be regarded as a departure from the spirit and scope of the present invention .
a control device configurable to couple to one or more devices having different control functions and a method of facilitating remote control of at least one device having different control functions includes a processor that receives an instruction for at least one of the control functions and additional information from the at least one device , the processor including a plurality of processing algorithms , the additional information received from the at least one device including at least a locally transmitted data signal . the processor selectably processes the additional information using at least one of the processing algorithms and controls a touch sensitive display reconfigurable for the different control functions , such that the at least one control function and the selectably processed additional information are presented on the touch sensitive display . the processor also generates at least one control signal responsive to receiving the locally transmitted data signal . other embodiments are disclosed .