AoIP and VoIP both have the common term ‘IP’ in their names. It stands for Internet Protocol, the technology that supports the exchange of media (files, audio, and video) over the internet instead of physical wires and cable framework. AoIP and VoIP are extensions of the IP technology and provide an alternative to the traditional analogue phone system. The differences between AoIP and VoIP lie in the type of data exchanged, the different industries that use each technology, the difference in internet bandwidth, and some other specifications.
The goal of this blog is to understand the definitions and working process of AoIP and VoIP and help you to distinguish one from the other.
What is VoIP?
VoIP is an IP technology that allows calls over an internet connection. Any device can be connected to the VoIP system either by using an Ethernet cable to connect it to the router or simply via a wireless internet connection. In addition to the major feature of voice calls, VoIP also allows advanced features like recording the call analytics, being able to forward calls within a system, queuing calls, and more.
VoIP offers clear quality for voice calls with minimum interruption, minimum data usage, and also international calls at a lower rate.
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Understanding the Working of VoIP
To set up a basic VoIP system, three main components are required. The first one is the availability of internet (Wifi or mobile data), which is a non-negotiable requirement. Other than that, a subscription to a VoIP software for a hosted VoIP system is needed. Finally, a smartphone, laptop, tablet, or an IP deskphone is connected to the rest of the system to start making and receiving calls.
After the system is set up, the following process takes place to transmit the calls from one VoIP point to another:
- When a call is made, the voice signals are converted into digital signals.
- These digital signals travel to the VoIP service provider’s network via the internet. Here, the digital signals are converted into IP packets.
- IP packets are characterised by compressed data that allows for more data to travel within less bandwidth.
- Finally, the IP packets are decompressed to convert into voice signals that can be heard in clear quality at the receiver’s device.
- Both the compression and decompression are done via codec technology.
What is AoIP?
AoIP stands for Audio over Internet Protocol. It is used to broadcast audio-only media, to provide high-quality audio. The audio quality offered by AoIP is even better than the VoIP voice calls feature because it is of professional grade. AoIP is largely used by broadcasting channels, radio stations, recording studios, and music distribution services.
Since the technology is used over the internet, it provides a far better alternative to traditional radio and landline audio distribution systems.
How does AoIP work?
AoIP works similarly to VoIP, as both use the same pathway in which the analogue audio signals are first converted into digital signals. After that, the audio signals are split into IP packets, which travel via the internet to be transformed back to audio signals at their final destination.
Let’s take a look at the basic device requirements to set up an AoIP system:
- Device 1: The first device in the system would be an input device, like a microphone, where the audio is fed at one AoIP point.
- Device 2: Audio processing device that performs the compression and decompression process to convert the data into IP packets.
- Device 3: An output device, like a speaker, that converts the incoming IP packets into audio signals. The output device is also often built in with an amplifier.
VoIP vs AoIP: Summary of differences
| Factors | AoIP | VoIp |
|---|---|---|
|
Type of Data |
Transmits audio-only media. |
Transmits voice calls, with additional features. |
|
Audio Channels |
Uses multiple audio channels. |
Requires a minimum of one audio channel. |
|
Audio Quality |
Professional-grade audio quality. |
Clear but basic audio. |
|
Internet Bandwidth |
Requires high bandwidth. |
Requires less bandwidth as compared to AoIP. |
|
Main Users |
Used by radio stations, studios, and broadcasters. |
Used by businesses for internal and external voice communication. |
|
Usage examples |
For live audio broadcasting. |
For two-way communication. |
Key Differences between AoIP and VoIP
Let us now discuss the differences between the two technologies. Learning the difference between both is important because AoIP and VoIP are used for different purposes. Only then can you make the right decision for your business.
Number of audio channels
Audio channels are the number of audio streams traveling through a connection at a time. In the case of VoIP, usually one audio channel meets the requirement of a mutual conversation. Advanced VoIP systems can also support multiple audio channels, but a basic system can operate on a single one.
On the other hand, AoIP works on multiple audio channels, allowing for a high-quality audio output with each distinguishable sound. The different audio streams allow the audio engineers to mix, match, and edit them, which creates a comprehensive audio at the end.
Internet bandwidth needs
AoIP generally requires more bandwidth than VoIP, mainly because of the higher audio quality. The bandwidth requirement of AoIP depends on different factors, like the number of audio channels, codecs, and the extent of the audio quality.
VoIP calls require less bandwidth than AoIP because the audio is not meant for professional use. It also depends on the number of users in one system and the network traffic at a time.
Users of each technology
AoIP provides better audio quality than VoIP. That is the reason why AoIP is preferred by businesses mainly dealing with professional audio distribution. While, VoIP is widely used for daily communication within a business setting, either within a team or with outside customers.
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FAQs
VoIP and AoIP both operate over the internet to send and receive their respective data. This is indicated by the term Internet Protocol in both terms.
Yes, these two terms are synonymous. There are many other terminologies used for the same technology, like Internet Audio Broadcasting or Audio over Ethernet. All of these are just different names for AoIP.
Yes, they do. VoIP can be used with simple devices like smartphones, laptops, or IP phones. AoIP, however, needs special equipment like audio interfaces and sometimes speakers with amplifiers to work properly.
