Microphone DM30
Contents
1. 48 Microphone DM30 Loop Socket Internal Mic Settings Enable the neckloop output Various level adjustments and settings for sound sources connected to the aux socket Set the level of the built in microphone General settings PIN Code Charge Language Name Func Indicator Factory Reset Time out TX Lock the unit with a PIN code to prevent tampering When Auto Power Off is activated the unit will turn off when charged Auto Restart will start the unit when charging is interrupted Default is to stay on during charging Set the menu language Give the unit a name to help identify it Toggle the function indicator on or off Reset the unit to factory settings All settings will be Lost Automatically turn off transmission if no sound is detected during 1 minute Transmission restarts when sound is detected Microphone DM30 49 LBT Verify that the selected channel is free before the transmission is started This is done to avoid interference with any existing signals If the selected channel is busy the following text will appear This channel is busy select a new channel Key Lock Manually activate the key lock About Information about the firmware version 50 Microphone DM30 2 Function indicator The function indicator gives you information about the units current status f rn Table 2 Pairing indications Status Indication Ready to recei2. 35 3 Advanced features This product has special features and settings that lets you tailor the unit to the user s specific needs FCR Free Channel Request FCR blocks transmission when the selected channel is occupied This eliminates problems with interference that can occur when multiple microphones are used simultaneously as in push to talk configurations A student pushes the push to talk button to respond to a question and all other microphones with FCR enabled are blocked As soon as the button is released the other students are free to use their microphones The teacher is using a separate channel to be able to talk freely without interrupting the students Microphone DM30 37 Figure 3 The student microphones shine red to indicate that someone else is using the channel Enable FCR FCR can be enabled to avoid interfering with other microphones when using push to talk Make sure the unit is configured as a Companion Unit with push to talk enabled 1 Select Mode gt Button Mode 2 Check FCR Enable the FCR indicator You can activate the FCR Indicator to get visual feedback when the FCR feature blocks transmission The function indicator will turn red to indicate blocked transmission 38 Microphone DM30 1 Select Mode gt Button Mode 2 Check FCR indicator Input levels The sensitivity of the various inputs are adjustable so you can match the levels to differen
3. Comfort Digisystem relies on radio technology to transfer the sound between transmitters and receivers Like all radio systems it communicates on specific channels If you use two transmitters on the same channel or neighbouring ones there may be interference Other electronic equipment can also interfere with radio transmissions Channel planning To achieve optimal radio performance you need to take into account the distance between transmitters and their frequencies A longer distance between transmitters allows you to use frequencies that are closer together If several transmitting frequencies are being used in the same room the frequency differences between the units should be at least 1 MHz for optimal operation Radio range The radio range between the units is around 30 m 100 ft However this may vary depending on the particular environment you are in Microphone DM30 59 2 Battery maintenance This product has a built in Lithium lon Polymer battery Lithium lon batteries do not suffer from so called memory effects and do not need to be routinely discharged to preserve performance The battery s capacity will degrade over time This is normal for all rechargeable batteries Battery lifetime is dependent on usage patterns The battery is preferably charged little and often it will reach 90 of its capacity after half its charging time If stored for long periods of time the battery is best left semi char
4. Microphone DM30 is able to both send and receive pairing information O Important At delivery all units share the same factory code key To make the system secure you need to generate a new code key The pairing button All Comfort Digisystem units are equipped with a pairing button The pairing button gives you quick access to the pairing features of the device Microphone DM30 31 Table 1 Pairing short cuts accessible through the pairing button Option Description A single press Takes you to the pairing menu A long press Sets the unit to receive pairing information For units with more than one channel this affects the transmitter channel only A double press Sends pairing information For units with more than one channel this affects the transmitter channel only Change channel If achannel does not suit your setup or if you are experiencing interference from some other radio source you can change to a different channel via the Channel menu 1 Select Communication gt Channel 2 Choose the channel you wish to use in the channel list Back 1 904 650 MHz 2 905 250 MHz The green circle next to the frequency indicates that the channel is free from interference If the channel is occupied the circle will be grey 32 Microphone DM30 Available channels Transmitter Comfort Digisystem has a total of 38 channels to choose from These channels should not requi
5. www comfortaudio nl Microphone DM30 Product symbols C 120 The product complies with the European directive 93 42 EEC including amendments concerning medical devices The product complies with the essential requirements ofthe European Directive 1999 5 EC including amendments concerning Radio and Telecommunications terminal equipment The product is covered by the European directive 2002 96 EC including amendments concerning Waste Electrical and Electronic Equipment WEEE Recycle the product and its accessories according to national regulations Direct current Restriction of usage related to transmitted frequencies may apply due to national regulations Connector for battery charger Microphone DM30 n D Indoor use only Class Il equipment 70 Microphone DM30 Trademark and copyright notices Comfort Digisystem is a trademark of Comfort Audio AB SecureStream Technology is a trademark of Comfort Audio AB Comfort Audio is a trademark of Comfort Audio AB Microphone DM30 71 MA0506 130529 Comfort Audio AB Box 154 SE 301 05 Halmstad Svveden Phone 46 35 260 16 00 infofdcomfortaudio com www comfortaudio com soou INOY IM eBueuo o p fqns si jusjuoo y penjesau 51 4613 NY gy orpny 1 e
6. Instructions for use Comfort Digisystem Microphone DM30 C Comfort Audio HEAR THE FUTURE Contents l User guide 7 LIntrogductten 55ekegg det debege d a s da s aad nanna 9 YOUR Ee ch ceste fece CP hh ane 9 Use the necia 15 Navigate the menu 17 Use the device as a student unt 21 External audio SOUFCES ii 22 Il For professionals ENNEN 25 T Basic setup Helene 27 Change the menu Language 27 Master Unit aired c aco a tenes Companion Unit Configure the function button 29 2 Pairing Comfort Digisystem devices 31 The pairing button Change channel une ee er Send pairing information Receive pairing information 34 Microphone DM30 Input levels Volume UMSS pa P er L ck the butt ns n eie pet tes Name the device PIN code settings iuit Reset all settings iii 11 Product information 45 edens Key Lock 3 Optional accessories 53 4 Technical specifications 55 IV 5 55 57 Channel planning Radio range Sonde qe REOR RE Microphone DM30 2 Battery ma
7. ents A typical set up consists of one unit configured as a teacher unit and one or several units configured as student units This set up allows each student to hear the teacher and fellow students that are using the push to talk feature Figure 1 The teacher s voice is mixed with the voice of the student pushing the function button and sent back out to the rest of the class Microphone DM30 Alternatively two units can be used together to allow team teaching A secondary unit worn by the assistant teacher then transmits sound via the primary teacher s unit to the student s units Figure 2 The teacher s voice is mixed with the voice of the assistant teacher and sent back out to the class Use the device as a teacher unit Use Microphone DM30 as a teacher unit to transfer the voice of the teacher mixed with the sound from another unit in the system directly to the students Use a unit configured as a Master Unit Verify that the af symbol is visible in the display For information on configuring the device see Basic setup on page 27 20 Microphone DM30 1 Have the teacher attach the unit to his or her clothes with the clip or use a necklace to hang it around the neck 5 For optimum sound quality the unit should be placed no more than 30 cm 12 in from the mouth 2 Let the teacher talk into the microphone in a normal voice and make sure the students can hear 3 I
8. f the teacher is using head phones or a neckloop for monitoring he or she can use adjust the volume to a suitable level Use the device as a student unit Students can use the device to listen and talk to other persons wearing Microphone DM30 devices Use a unit configured as a Companion Unit Verify that i symbol is visible in the display For information on configuring the device see Basic setup on page 27 Microphone DM30 21 1 Have the student wear the unit around the neck using the neckloop Va 2 Let someone talk into the teacher microphone and let the student use to adjust the volume to a suitable level 3 Optional Ask the student to talk into the microphone and use the function button to turn the transmission on or off External audio sources You can connect any sound source that has a line out socket to the device This lets you listen to television conference telephones voice recorders and the like It is also possible to connect an external microphone such as a clip on microphone or a pair of headphones Connect an external audio source Connecting an external audio source will bring up a menu where you can select the type of device you have connected 22 Microphone DM30 1 Connect your external audio source to the aux socket For line sources you can use the supplied audio cable The Socket menu will be shown automatically 2 Select the option that corresponds to the device you have c
9. ged Contact your point of purchase when it is time to change the battery Operating times vary depending on which features are used Microphone DM30 61 3 Troubleshooting Consult the following guide if you have problems with your equipment If you still have questions please contact your point of purchase Symptom Cause Solution The device does not start The battery is depleted Dis released too soon Charge the battery Press D for at least 2 sec Poor speech intelligibility The distance between the microphone and the person speaking is too long Reduce the distance to he speaker Poor range and or static interference The distance between the microphone and the receiver is too long Reduce the distance to he receiver Maximum distance is approx 30 m 100 ft Loud hissing noise no sound transfer The units are not paired Redo the pairing procedure See Pairing Comfort Digisystem devices on page 31 Device will not start during charging Auto Power Off is activated Disable Auto Power Off No sound is heard The microphone is muted The transmitter and receiver channel does not match Unmute the microphone Redo the pairing procedure See Pairing Comfort Digisystem devices on page 31 Microphone DM30 63 Service and warranty Comfort Audio AB acco
10. he charging is done when the function indicator turns green 14 Microphone DM30 Start up Press until the start up bar is fully lit Use the neckloop If you are going to use your product with a hearing aid or hearing implant in the T or M T position you need to connect the neckloop and wear it around your neck Microphone DM30 1 Connect one end ofthe neckloop to the sockets on top ofthe unit 2 Place the neckloop behind your neck 2 A 16 Microphone DM30 3 Connect the other end of the neckloop O Important Make sure the neckloop is inserted properly Improper insertion might cause you to drop the device or damage the connections 4 Switch your hearing aid or hearing implant into its T or M T position You should now hear the sound come through your hearing aid Navigate the menu You can use _ on the side of the unit to navigate your way through the menu Microphone DM30 1 Press am to activate the menu 2 Flick the controller up or down to select the desired menu option 7 3 Press to enter the selected sub menu or activate the selected menu option 4 When done use the Back option to move to the previous menu 18 Microphone DM30 3 Usage Microphone DM30 is purpose made to be used with other units ofthe same type Together with the other units it forms a system for two way communication among teacher and stud
11. intenance 61 3 Troubleshooting cene 63 Service and vvarranty 5 Contact 67 Product 5 69 Microphone DM30 Microphone DM30 I User guide This part of the instruction manual covers day to day tasks that a user of the product should be familiar with Microphone DM30 1 Introduction Thank you for choosing Microphone DM30 Microphone DM30 is part of Comfort Digisystem that uses digital wireless technology to give you the best sound quality available together with secured transmission to prevent eavesdropping To get the most out of your new product please read these instructions before using it for the first time Take special notice to the printed document mportant Safety Instructions included in the box Your device Microphone DM30 is as a combined transmitter and receiver that is especially designed for use in schools It allows for two way communication and is configurable as teacher or student microphone according to your needs SST SecureStream Technology SST is Comfort Audio s proprietary digital transmission technology It lets you communicate securely and latency free with other Comfort Digisystem devices Microphone DM30 Overview 9 olal m Powe
12. me from being turned up too loud by accident you can set a maximum allowed volume level 1 Select Sound gt Socket gt Max Fix Vol 2 Select Settings under Max Volume 3 Adjust the volume to the desired level 4 Press to confirm you choice Set a fixed volume level If there is no need of a user adjustable volume you can lock the volume to a fixed level 1 Select Sound gt Socket gt Max Fix Vol 40 Microphone DM30 2 Select Settings under Fix Volume 3 Adjust the volume to the desired level 4 Press a to confirm you choice Lock the buttons If you want to avoid accidental button presses it is possible to lock all functions by activating the key lock You can always use the power button regardless of the key lock Select KeyLock An orange padlock symbol will appear in the display of the device Name the device To help identify the device you can enter a name that will be shown in the display and during Bluetooth pairing 1 Select Settings gt Name 2 Use to scroll through the list of characters Press to enter the selected character 3 When done select Y To cancel select X instead PIN code settings To prevent tampering or unintentional changes of the settings you can lock the product with a four digit PIN code Set a PIN Code 1 Select Settings gt PIN Code 2 Check Enabled Microphone DM30 41 3 Use a to scroll through the list of characters P
13. onnected Option Description Line In Computer TV music player etc External Mic Boom microphone clip on microphone etc Head Phones Headphones or earphones O Note When Line in is activated and a cable is connected the unit switches automatically to continuous transmission even if Push to talk or Mic On Off is activated 3 Adjust the volume by using till you find a suitable level Microphone DM30 23 II For professionals The following sections covers advanced features and procedures primarily intended for professionals and advanced users Microphone DM30 25 1 Basic setup Before setting up the product you should make sure that the menu is set to the preferred language You should also decide whether it should be used as a Master Unit or as aCompanion Unit Change the menu language The default menu language is English You can change language from the menu Settings 1 Select Settings gt Language 2 Select the language you want from the list of available languages Master Unit The Master Unit is the device in a system that acts as a mixer for other paired Microphone DM30 units It receives sound from another unit and mixes it with the sound from the built in microphone The mixed audio is transmitted on a separate master channel to any paired receivers Listeners will hear both the Master Unit and the second unit on that channel This lets two persons talk freel
14. ption Reset all settings If you need to reset all settings to their default values you can do a factory reset 1 Select Settings Factory Reset Microphone DM30 43 44 2 Select Yes Important All settings will be lost Any pairing needs to be redone Microphone DM30 III Product information Microphone DM30 1 Menu overview Back Communication Mode Back Channel Pair Back Master Unit Companion Unit Button Mode Receiver On Transmitter On Sound Back Loop Socket Internal Mic Settings Back PIN Code Charge Language Name Func Indicator Factory Reset Time out TX LBT Key Lock About Microphone DM30 47 Back Leave the current menu Communication Settings for radio channels and pairing Channel Change the transmitting and receiving channel Pair Pair the unit with another Comfort Digisystem device Allows you to generate a new code key to make the system secure Mode Set the operating mode of the unit Master Unit Make the unit a Master Unit that receives sound from Companion Units Companion Unit Make the unit a Companion Unit that transmits sound to the Master Unit Button Mode Configure the function button Receiver On Enable the built in receiver Only available as Master Unit Transmitter On Enable the built in transmitter Only available as Companion Unit Sound Settings related to the sound of the unit
15. push to talk to allow the use of several microphones on a single channel or as a mute switch to temporarily mute the sound when having a private conversation 1 Select Mode gt Button Mode 2 Select one of the following options Option Description None The button has no function Push to talk The microphone is on while the button is pushed and muted on release Mic On Off The microphone is toggled on and off with each press off the button Mute switch The microphone is muted while the button is pushed and active on release Master Units only Receiv On Off 1 The built in receiver is toggled on and off with each press of the button Master Units only Microphone DM30 29 2 Pairing Comfort Digisystem devices By pairing two or more Comfort Digisystem devices you ensure that they can communicate securely with each other Comfort Digisystem is a digitally encrypted communication system that relies on unique code keys to provide transmission security Any units that are to be used together needs to be set to the same channel and share the same code key When you perform a pairing procedure you send information about the channel and code key from one unit to one or several others This lets you create a channel and code key combination on one unit and distribute it to other units to form a system The information about the channel and code key is referred to as pairing information
16. r button Pairing button Function button Function indicator Menu controller Charger input Neckloop output Aux input and output Volume button a 10 Clip 11 Microphone 12 Display Microphone DM30 Display Current channel Battery status Signal quality Key lock padlock Volume bar Unit name Current aux setting Unit mode Receiver status 10 Transmitter status 11 Current button mode DPI B mS 12 IE 5 Microphone DM30 11 Included accessories Microfibre pouch Power supply Cable split Neck loop Digisystem Comfort Audio vy r 1 1 1 ti i ti ti E 1 ti 11 Microphone DM30 2 Getting started This section will teach you how to perform the basic steps needed to get started Charge Charging can be done at any time If you make it routine to charge your product whenever you do not use it it is always ready for use when you need it 1 Insert the supplied charger into the charger input Caution Only use the charger supplied by Comfort Audio AB Using any other type of charger might damage your device Microphone DM30 13 2 Plug the charger into the wall socket The function indicator turns red to indicate charging O Note The unit might become warm during charging this is entirely normal The unit is equipped with overcharging and temperature monitoring to protect the batteries T
17. rds a limited warranty for two years as of the date of delivery This covers all defects of manufacture and materials For accessories the warranty period is 90 days as of the date of delivery Local agreements or regulations may exist Defects caused by careless handling or intervention inside the product or its accessories are not covered by the warranty If you are ina need of service on your device please contact your point of purchase You are always welcome to contact Comfort Audio if you have any questions Microphone DM30 65 Contact information Head office SWEDEN Comfort Audio AB Box 154 SE 301 05 Halmstad 46 35 260 16 00 lt infoldcomfortaudio com www comfortaudio com Subsidiaries DENMARK NORWAY Comfort Audio ApS Comfort Audio AS Benediktevej 5 1 sal Postboks 304 DK 3480 Fredensborg NO 3201 Sandefjord e 45 33 78 03 02 e 47 959 87 910 DA info acomfortaudio dk lt infofdcomfortaudio no www comfortaudio dk www comfortaudio no Microphone DM30 67 GERMANY Comfort Audio GmbH Curiestra e 2 DE 70563 Stuttgart e 49 711 67 400 224 DA info comfortaudio de www comfortaudio de USA Comfort Audio Inc 411 E Business Center Drive Suite 109 Mount Prospect IL 60056 USA G 1 888 421 0843 DS usafdcomfortaudio com amp www comfortaudio us BENELUX Comfort Audio BV Nieuwe Steen 20 NL 1625 HV Hoorn 13 31 229 87 01 10 DA info comfortaudio nl
18. re a license in North America However always verify with the local frequency assignment authority which channels are free to use and which require a licence Send pairing information By sending pairing information from Microphone DM30 you can synchronise its channel and code key with another unit Any existing pairing information in the other unit will be overwritten 1 Select Communication gt Pair 2 Setthe unit or units that you would like to pair with Microphone DM30 to receive pairing information Microphone DM30 33 3 To send the pairing information select one of the following options Option Description Send Info Send the existing code key Back Receive Info New Code Key New Code Key Generate and send a new code key Back y Send Info Receive Info O Important This will break the pairing with any previously paired units When the info is sent the text Info sent willappearin the display Receive pairing information When the unit is set to receive pairing information its current channel and code key will be overwritten by the received information 1 Setthe unit to receive information by selecting Communication gt Pair 2 Select Receive Info 3 Send pairing information from the unit you are pairing with Microphone DM30 34 Microphone DM30 If the pairing is successful the word OK will appear in the display of Microphone DM30 Microphone DM30
19. ress du to enter the selected character Enter new PIN 1000 lt jos x gt 4 When done select V To cancel select X instead O Important Make note of the PIN code If you forget the PIN contact your point of purchase Choose which functions to lock By selecting which functions to lock with the PIN code you can allow access to commonly used functions while preventing access to others 1 Select Settings PIN Code Lock Select 2 Select the functions you want to lock Option Description Mode Lock access to the Mode menu Pair Lock access to the Pair menu Sound Lock access to the Sound menu All Menus Lock access to all menus 42 Microphone DM30 Hide the PIN entry dialogue To reduce the temptation to guess the PIN the PIN entry dialogue can be hidden The user then has 3 seconds from start up to access the dialogue before it is hidden 1 Select Settings gt PIN Code gt Lock Select 2 Select Hide PIN Entry Change the PIN code 1 Select Settings gt PIN Code Enter the current PIN code Select Change PIN Enter the new PIN code Select V to confirm PIN m MON Disable the PIN code If you no longer wish to lock access to the unit you can disable the PIN code The PIN will be reset and a new code will have to be entered if you choose to enable it again 1 Select Settings PIN Code 2 Enterthe current PIN code 3 Uncheck the Enabled o
20. t audio sources and situations V Tip Use a low input sensitivity and a short microphone distance to reduce the risk of acoustic feedback when the device is used with a speaker system Adjust the Level of the built in microphone Adjust the sensitivity of the built in microphone to cater for different acoustic situations 1 Select Sound 2 Select Level under Internal Mic 3 Adjust the volume to the desired level 4 Press a to confirm you choice Adjust the Level of the external microphone Adjustthe input Level of the external microphone to compensate for different microphone sensitivities 1 Select Sound Socket 2 Select Level under External Mic 3 Adjust the volume to the desired level 4 Press to confirm you choice Microphone DM30 39 Adjust the level of the line input If needed adjust the sensitivity of the line input to match the output level of the connected device 1 Select Sound gt Socket 2 Select Level under Line In 3 Adjust the volume to the desired level 4 Press au to confirm you choice Volume limits Setting the volume too loud can be unpleasant and potentially cause damage to the hearing This product is equipped with a maximum volume feature that limits the loudness to a predefined level that you deem safe You can also set a fixed volume level if you prefer control of the volume from the hearing aid only Set a maximum volume level To prevent the volu
21. ve pairing information ee NN NN uN uN m H Pairing information sent WEEN Information received Table 3 Charging indications i A Status Indication Normal operation 1 m W m Charging in progress LS Charging complete n xoa Lovv battery O JI W W Note If the unit is on while charging the function indicator stays red even when the battery is fully charged Microphone DM30 51 3 Optional accessories The following accessories can be used with your product Soft case Charging stand Table stand Neckholder Microphone DM30 53 Boom microphone black Boom microphone beige A Clip on microphone 54 Microphone DM30 4 Technical specifications Type of transmitter receiver Range Dimensions Weight Frequency range transmitter Frequency range receiver Antennas Operating time Charging time Microphone Connections SST SecureStream Technology Approx 30 m 100 ft 97x41x17 mm 3 8x1 6x0 7 in 51 g 1 8 oz 904 927 MHz 2 40 2 48 GHz 904 927 MHz 2 40 2 48 GHz Built in Up to 10 hours Dependent on usage conditions Measured with factory settings Up to 3 hours Built in microphone omnidirectional Mic Line in headphones neckloop Microphone DM30 55 IV Miscellaneous Microphone DM30 1 Radio
22. y without forced interruptions By using push to talk microphones the Master Unit can be used with multiple microphones Such a set up is useful in classroom situations were the students take part in discussions and need to hear the classmates and the teacher Microphone DM30 27 Configure the device as a master unit You typically configure the device as a Master Unit when it is going to be used by a teacher or lecturer With this set up the device will mix the voices of the teacher and student and broadcast them to the class 1 Select Mode 2 Check Master Unit When the unit is programmed as Master Unit the display shows Companion Unit A Companion Unitwill let the user listen to the master channel and communicate with other Companion Units by relaying sound through the Master Unit A Companion Unit is typically used with the push to talk feature enabled to let several users take turn transmitting sound to the Master Unit Configure the device as a Companion Unit The Companion Unit setting is normally used if the device is used by a student It lets the student hear both the teacher and fellow students 1 Select Mode 2 Check Companion Unit When the unit is programmed as Companion Unit the display shows il 28 Microphone DM30 Configure the function button The function button on the unit can be configured for different purposes through the menu option Mode For example it can be set to
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