FM SYSTEM GUIDE For the TEMPO+ Speech Processor
TABLE OF CONTENTS INTRODUCTION TO FM SYSTEMS 4 ABOUT DIFFICULT LISTENING ENVIRONMENTS 5 USING FM SYSTEMS IN DIFFICULT LISTENING ENVIRONMENTS 6 HOW OFTEN SHOULD FM SYSTEMS BE USED? 9 CONNECTING AN FM SYSTEM TO THE TEMPO+ SPEECH PROCESSOR 10 :: FM Adapter Cables for the TEMPO+ Angled Battery Pack 12 :: Connection to the TEMPO+ Angled Battery Pack 13 :: FM Adapter Cables for the TEMPO+ Remote Battery Pack 14 :: Connection to the TEMPO+ Remote Battery Pack 15 RECOMMENDED FM SYSTEMS AND SET
Introduction to FM systems MED-EL offers a wide range of adapter cables for use with frequency modulated systems (FM systems), battery-operated devices such as portable CD players, and assistive listening devices (ALD). The TEMPO+ speech processor can be connected to these devices using either the Angled Battery Pack or the Remote Battery Pack.
About difficult listening environments Background noise makes hearing more difficult for everyone – and especially for people with hearing impairment. An optimal signal to noise ratio is required for good listening conditions. The signal (e.g. speech) should be somewhat louder than the background noise (e.g. traffic, people talking, etc.) to be considered easy to listen to.
Using FM systems in difficult listening environments Ideally, FM systems should be used in difficult or complex listening situations. A listening situation is considered difficult when (1) the signal (e.g. a teacher’s voice) is very far away from the listener, (2) the background noise is very loud and additional sounds make it difficult to hear the signal (e.g. in a classroom), or (3) in reverberant rooms where the echo distorts the signal (e.g. in auditoriums).
microphone, providing effective assistance in difficult listening situations, such as conversations in loud background noise. Television, listening to music To reduce ambient noise when watching television, the microphone should be placed directly in front of the TV loudspeaker or music source. As an additional benefit, the volume of the device can be turned down so that others are not disturbed.
Cars To overcome listening difficulties caused by engine noise and traffic, the microphone may be clipped to the front or back seat if there are several passengers, or to the collar of the speaker if there is only one other person in the car. The same can be done using the microphone mode of the TeleMic system. Meetings Business meetings often take place at large tables, and listeners may have trouble with echo, noise and not being able to see the speaker's face.
How often should FM systems be used? Childrens’ ability to hear their parents is very important, especially for young children. Warnings and instructions can be conveyed to the child over a distance to increase the child’s safety. However, FM systems should not be used constantly. First, specific measures to improve room acoustics (no avoidable background noise, sound absorbing materials, etc.) and communication (only one speaker, speaking clearly, minimizing the distance to the listener, etc.
Connecting an FM system to the TEMPO+ speech processor NOTE: Adapter cables should never be used to connect the TEMPO+ to equipment that is powered via direct connection to an electrical outlet. To connect an FM receiver to the TEMPO+ speech processor, an adapter cable is required. This cable not only transfers the signal to the speech processor, but also adapts the output level of the FM receiver to the input level of the speech processor.
Influence of the TEMPO+ sensitivity control The sensitivity control of the TEMPO+ speech processor enables the user to control the processing of desired sounds and background noise. When using FM systems, the effect of background noise and reverberation is minimized. FM systems help to reduce background noise while enhancing and stabilizing the main sound source. In MIX mode, the listener hears environmental sounds received by the TEMPO+ microphone plus the signal from the external source (FM system).
FM Adapter Cables for the TEMPO+ Angled Battery Pack MED-EL offers a variety of adapter cables for use with FM systems, battery-operated devices such as portable CD players, and Assistive Listening Devices (ALDs). FM Systems generally require adapter cables designed for each specific system. The following table provides a list of FM Systems and compatible adapter cables.
Connection to the TEMPO+ Angled Battery Pack How to connect... b a 1. Open cover at the angled part of the device by pulling straight back (a) and lifting upward (b). 2. Insert the connector of the cable into the socket as shown. The red dot on the cable connector should be on top. When positioned correctly, the connector slides into the socket easily. Note: Be careful not to force the connector into the socket in the wrong way. c 3. Gently lower the cover until it rests on the connector (c).
FM Adapter Cables for the TEMPO+ Remote Battery Pack MED-EL offers a variety of adapter cables for use with FM systems, battery-operated devices such as portable CD players, and Assistive Listening Devices (ALDs). FM Systems generally require adapter cables designed for each specific system. The following table provides a list of FM Systems and compatible adapter cables.
Connection to the TEMPO+ Remote Battery Pack 1. Remove the rubber protector of the audio input (a) External Audio Input a 2. Ensure that the correct end of the adapter cable is used. The correct end features a colored ring (b). b 3. Insert the adapter cable into the socket (c). c EXT/MIX Switch The EXT/MIX switch is used to control microphone function when an external device is connected EXT: TEMPO+ microphone deactivated The user hears input from an external device only without environmental sounds.
:: Guide to FM Systems
Recommended FM systems and Settings FM receivers and FM transmitters have various controls to adjust parameters such as microphone sensitivity, input mode, transmission channel, output volume, output mode, etc. In some cases, tools may be needed or the device housings may have to be opened for adjustments. To reach optimal performance with an FM system, we recommend that you contact a hearing aid dealer for adjustment of the device.
Phonic Ear Lexis and MicroLink CI S Adapter Description: Dimensions Weight Operation time Audio bandwidth Channels Transmitter Lexis (1) Receiver Lexis (2) Adapter MicroLink CI S (3) 125 x 20 x 35 mm 15,2 x 12,4 x 11,3 mm 28 x 21 x 12 mm 4.9 x 0.78 x 1.37” 0.59 x 0.48 x 0.44” 75 g 2.
Phonic Ear Lexis and MicroLink CI S Adapter Recommended settings: ANGLED BATTERY PACK REMOTE BATTERY PACK MIX mode Transmitter Phonic Ear Lexis ON/OFF/mode switch Receiver Phonic Ear Lexis Mode Switch FM Gain Control Adapter MicroLink CI S Volume Omnidirectional EXT mode Omnidirectional Omnidirectional °° FM + HA Max ° FM Max ° FM Max 2 ..
Phonic Ear Solaris PE 571T + PE 572R (or PE 575 R) Description: Dimensions Transmitter PE 571 T Receiver PE 572 R 76 x 58 x 21 mm 76 x 58 x 21 mm 3 x 2.3 x 0.83” 3 x 2.3 x 0.83” 100 g / 3.5 oz Weight Operation time 10 h (rechargeable AA) Audio bandwidth Channels 100 g / 3.
Phonic Ear Solaris PE571T + PE 572 R (or PE 575 R) Recommended settings: ANGLED BATTERY PACK REMOTE BATTERY PACK MIX mode Transmitter PE 571 T ON/OFF switch Receiver PE 572 R/ PE 575 R ON/OFF switch FM volume Output mode FM plus TMX AUX switch EXT mode MIC/AUX MIC/AUX MIC/AUX FM 4 HI OFF OFF Any position FM 6 .. 8 DAI OFF OFF Any position FM 4 ..
Campus S, Phonak MicroLink MLxS and MicroLink CI S Adapter Description: Dimensions Weight Operation time Audio bandwidth Channels Transmitter Campus S Receiver MicroLink MLxS Adapter MicroLink CI S 62 x 50 x 25 mm 13,5 x 10,9 x 14 mm 28 x 21 x 12 mm 75 g (incl.
Campus S, Phonak MicroLink MLxS and MicroLink CI S Adapter Recommended settings: ANGLED BATTERY PACK REMOTE BATTERY PACK MIX mode Transmitter Campus S Microphone mode Receiver MicroLink MLxS Mode Switch Adapter MicroLink CI S Volume Omnidirectional EXT mode Omnidirectional Omnidirectional •• FM + HA •• FM + HA •• FM + HA 2 2 11/2 Transmitter Campus S Adapter Cable Receiver MLxS Output socket for connection to the speech processor Volume Microphone mode Switch to omnidirectional •• FM + HA
Campus S and Phonak MicroLink CI+ Description: Dimensions Weight Operation time Audio bandwidth Channels Transmitter Campus S Receiver MicroLink CI+ 62 x 50 x 25 mm 44 x 21 x 12 mm 75 g (incl. Battery) 13 g (incl.
Campus S and Phonak MicroLink CI+ Recommended settings: ANGLED BATTERY PACK REMOTE BATTERY PACK MIX mode Transmitter Campus S Microphone mode Receiver MicroLink CI+ Volume Omnidirectional 3 EXT mode Omnidirectional Omnidirectional 21/2 2 Transmitter Campus S Receiver MicroLink CI+ Output socket for connection to the speech processor Antenna Volume Microphone mode Switch to omnidirectional ON/OFF switch www.phonak.
Tx3 HandyMic and Phonak MicroLink CI+ Description: Dimensions Weight Operation time Audio bandwidth Channels Transmitter Tx3 HandyMic Receiver MicroLink CI+ 125 x 33 x 18 mm 44 x 21 x 12 mm 75 g (incl. Battery) 13 g (incl.
Tx3 HandyMic and Phonak MicroLink CI+ Recommended settings: ANGLED BATTERY PACK REMOTE BATTERY PACK MIX mode Transmitter HandyMic Microphone mode Receiver MicroLink CI+ Volume Omnidirectional EXT mode Omnidirectional Omnidirectional 3 .. 31/2 2 2 Transmitter Tx3 HandyMic Microphone mode switch Low battery indicator Receiver MicroLink CI+ Antenna Output socket for connection to the speech processor Volume ON/OFF switch www.phonak.
Phonak MicroVox H33 COM I Description: Dimensions Weight Operation time Audio bandwidth Channels Transmitter Receiver 64 x 48 x 24 mm 72 x 48 x 24 mm 2.5 x 1.8 x 0.9” 2.8 x 1.8 x 0.
Phonak MicroVox H33 COM I Recommended settings: ANGLED BATTERY PACK REMOTE BATTERY PACK MIX mode Transmitter ON/OFF switch Receiver FM volume L/N switch EXT mode ON ON ON 2 1/2..3 L or N 3 .. 5 L or N 3 .. 4 1/2 L or N Receiver L/N switch FM Volume Output socket for connection to the speech processor ON/OFF Switch Transmitter ON/OFF Switch www.phonak.
SENNHEISER mikroport 2015 Description: Transmitter SK 2015 Dimensions Weight Operation time Audio bandwidth Channels Receiver EK 2015 82 x 64 x 24 mm 82 x 64 x 24 mm 175 g (incl. batteries) 175 g (incl.
SENNHEISER mikroport 2015 Recommended settings: ANGLED BATTERY PACK REMOTE BATTERY PACK MIX mode Transmitter SK 2015 ON/OFF switch Mute switch Microphone mode Microphone sensitivity Receiver EK 2015 ON/OFF switch FM volume Internal microphone Output socket ON OFF Omnidirectional 20 EXT mode ON ON OFF OFF Omnidirectional Omnidirectional 20 20 ON 45 OFF HI ON 50 OFF HI Transmitter SK 2015 ON 40 OFF HI Receiver EK 2015 Microphone input socket Output socket for connection to the speech processor A
SENNHEISER mikroport 2013 PLL Description: Dimensions Weight Operation time Audio bandwidth Channels Transmitter SK 2013 PLL Receiver EK 2013 PLL 95 x 57 x 17 mm 95 x 57 x 17 mm 132 g (incl. batteries) 134 g (incl.
SENNHEISER mikroport 2013 PLL Recommended settings: ANGLED BATTERY PACK REMOTE BATTERY PACK MIX mode Transmitter SK 2013 Microphone sensitivity Receiver EK 2013 FM volume Internal microphone Automatic fade-in Output socket EXT mode 8 7..8 7 3..
Research Vario 800 Description: Dimensions Weight Operation time Channels Audio bandwidth Transmitter S 800/T Receiver AE 800 80 x 60 x 21,5 mm 87,5 x 68 x 22,5 mm 160 g 150 g (with battery) 3,5 h (rechargeable) 20 h (rechargeable) 16 16 150 – 8,000 Hz 150 – 8,000 Hz Connection: Angled Battery Pack Listening Mode BINAURAL MONAURAL selected by cable Adapter Cable Order Number Adapter Cable Order Number MIX mode EXT mode Vario 800 Mix cable 3078 Vario 800 BiMix cable 3079 Vario 800
Research Vario 800 Recommended settings: ANGLED BATTERY PACK REMOTE BATTERY PACK MIX mode Transmitter S 800/T Level Receiver AE 800 FM volume* HIGH 1/4 turn – 1/2 EXT mode HIGH turn 1/2 HIGH turn 1/4 turn * refers to one turn in relation to OFF position Receiver AE 800 Transmitter S 800/T Channel selector FM Volume Output socket for connection to the speech processor Channel selector Mic jack ON/OFF switch Level www.research-hoersysteme.
Connevans CRM 220 D Description: Dimensions Weight Operation time Transmitter CRM T220 Receiver CRM R220 94 x 53 x 24 mm 94 x 53 x 24 mm 75 g (without battery) 80 g (without battery) 40 h (rechargeable) 40 h (rechargeable) 120 h (disposable) 120 h (disposable) 80 – 8,000 Hz 80 – 8,000 Hz 1 2 (with optimal plug-in) Audio bandwidth Channels Connection: Angled Battery Pack Listening Mode MONAURAL selected by cable Adapter Cable Order Number MIX mode EXT mode T+ ConnevansMix 2381 T+ Co
Connevans CRM 220 D Recommended settings: ANGLED BATTERY PACK REMOTE BATTERY PACK MIX mode Transmitter CRM T220 ON/OFF switch Receiver CRM R220 Switch Transmitter volume Environmental volume Bass switch Treble switch EXT mode ON ON ON FM Minimum Normal Normal FM .. Minimum OFF OFF FM Minimum OFF OFF Receiver CRM R220 Transmitter CRM T220 ON/OFF switch Output socket for connection to the speech processor Environmental microphone Transmitter volume Microphone socket www.connevans.
Sonovation Logicom Ci (Remote Battery Pack only) Description: Dimensions Weight Operation time Transmitter Receiver TX-20 Logicom Ci 6.1"x1.22"x0.7" 0.77"x0.77"x0.5" 155 x 31 x 18 mm 22 x 22 x 15 mm 2.5 oz (72g) 0.
Sonovation Logicom Ci (Remote Battery Pack only) Recommended settings: REMOTE BATTERY PACK Transmitter TX-20 Gain Receiver Logicom Ci Volume EXT mode EXT mode 1 1 Blue Red - Blue Transmitter TX-20 Display Mode button Antenna ON/OFF button AUX input Microphone Receiver Logicom Ci Gain trimmer ON/OFF switch 3.5 mm Stereo plug Synthesizer channel change push button 13 size Battery door www.avrsono.
Williams Sound Hearing Helper PFM 350 Description: Transmitter PFM T30 Dimensions 35/8" x 23/8" x 7/8" Receiver PFM R31 35/8" x 23/8" x 7/8" 92.1 x 60.3 x 22.2 mm 92.1 x 60.3 x 22.2 mm Weight 4.4 oz (125g) with batteries 4.6 oz (130g) with batteries Operation time 10 h (2 rechargeable AA) 50 h (2 rechargeable AA) Audio bandwidth Channels 12 h (2 disposable AA) 80 h (2 disposable AA) 100 – 10,000 Hz 100 – 10,000 Hz 10 2 (pre-set 72.9 and 75.
Williams Sound Hearing Helper PFM 350 Recommended settings: ANGLED BATTERY PACK REMOTE BATTERY PACK MIX mode Transmitter PFM T30 ON/OFF switch Receiver PFM R31 ON/OFF & FM volume MIC volume Tone EXT mode ON ON ON 75% MIN Lo 75% MIN Lo 70% MIN Lo * refers to one turn in relation to OFF The connected cables serve as antenna and must hang freely to get the best transmission quality.
Comtek AT 216 Description: Dimensions Weight Operation time Audio bandwidth Channels Transmitter M-216 Receiver MicroLink PR-216 83 x 57 x 27 mm 83 x 57 x 27 mm 3 1/4 x 2 1/4 x 1 1/16” 3 1/4 x 2 1/4 x 1 1/16” 4 oz / 110 g 4 oz / 110 g 12 h (rechargeable) 10 h (rechargeable) 40 h (9V alkaline) 40 h (9V alkaline) 80 – 10,000 Hz 80 – 12,000 Hz 57 57 Connection: Angled Battery Pack Listening Mode MONAURAL selected by cable Adapter Cable Order Number MIX mode EXT mode Comtek Mix Cable 3
Comtek AT 216 Recommended settings: ANGLED BATTERY PACK REMOTE BATTERY PACK MIX mode Transmitter M-216 ON/OFF switch Voice gain Receiver PR-216 ON/OFF switch Volume Voice gain Mick jack EXT mode ON 80% ON 80% ON 80% ON 85% ON 75% ON 60% ON/OFF switch Transmitter M-216 Output socket for connection to the speech processor Volume ON/OFF switch Receiver PR-216 www.comtek.
Troubleshooting Once you are familiar with the TEMPO+ speech processor and your FM system, you will not find it difficult to handle minor technical problems which are similar to those encountered with other electronic devices. Malfunctions are most frequently related to batteries or cables. We recommend step by step troubleshooting of the FM system and the TEMPO+ speech processor.
Microphone Test Device The Microphone Test Device is used to subjectively test the microphone of the TEMPO+. It is useful in families with young TEMPO+ users, in clinical settings and in schools. The amplified microphone signal can be heard by any hearing person using headphones to verify that sound is being received by the TEMPO+ microphone. Please refer to the Microphone Test Device user manual for the corresponding test.
References Bess FH, Sinclair JS, Riggs D (1984) Group amplification in schools for the hearing impaired, Ear Hear, 5(3): 138-144 Crandall C, Smaldino J (1994) An update of classroom acoustics for children with hearing impairment. The Volta review, 96 (4): 291-306 Davies MG, Yellon L, Purdy SC (2001) Speech-in-noise perception and children using cochlear implants and FM systems, Australian and NZ Journal of Audio, 23(1): 52-62 Henry P, Brassine E Selection , application and integration of FM systems, www.
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