Recommended devices to enhance the audio for Zoom client on laptops
A number of devices will be made available for lending purposes however, it is strongly recommended that academics use their work resources to buy these devices. This will facilitate connectivity and familiarity with the device.
This is the most common and widely used solution. The headset consists of headphones covering both ears or one ear with an attached microphone. This may be wired or wireless.
For P+R teaching, the one-ear set is recommended. Alternatively, when using headsets with two ear cups, one ear cup can be displaced away from the ear. The most critical part is the microphone attached to the headset as this allows the remote students to hear the lecturer clearly.
Unlike headphones, the neck speakers rest on the shoulders. This gives a more real presence and eliminates the discomfort of having a headset covering the ear. Microphones inside the unit allow the far end to hear.
These mics attach to the lapel or can be attached to a loop around the neck. These types of mics are discreet and allow the remote participants to hear the presenter clearly.
These are by far the best solution and are extensively used in live performances. However, professional models can be quite expensive. Less expensive models require great care when selecting the wireless frequencies used as interference can often occur.
Wired vs. wireless - A wireless headset is more convenient as this allows lecturers to move away from their laptop.
Frequency/modulation used - Avoid units claiming to use UHF frequencies as these are often a set of fixed frequencies and may be subject to interference especially if other devices are being used close by. Moreover, some UHF devices still being sold use frequencies that are not recommended by the local communications authority (MCA).
We suggest using Bluetooth devices as these are more readily available, reliable while generally being relatively less expensive. DECT units are also favourable but these are harder to find.
Note that for laptops without Bluetooth connectivity, a USB dongle/adaptor will be required.
Noise cancelling - This is the reduction of unwanted background noise. This may be applied to the headphones, to the microphone or both. In a lecture room environment, noise-cancelling headphones should be avoided as these will make it difficult for the academic to hear the students in class. A noise-cancelling microphone is however recommended as these allow the remote students to hear the lecturer clearly. In general, the closer the microphone is to the speaker's mouth, the less the background noise is heard by the remote participants.
