You need a working sound input and output configuration in order to use Skype. Open alternatives Softphones using open protocols include Ekiga and Twinkle. SkypeEthics gives information on why some users do not use Skype. The Skype software is free to use, but it is not free software the source code is proprietary and not available for review or modification. It uses its own proprietary communication protocol to achieve this.
Skype uses semi-decentralized peer-to-peer technologies, so your calls do not go through a central server, but through a pool of dedicated servers. Noise suppression is a microphone feature that removes background noise from the audio.Īutomatic gain is a microphone feature that automatically manages the volume of audio input to keep a steady volume level.Skype is proprietary software that allows you to make calls over the Internet using your computer. For example, the time it takes to convert analog audio to digital audio contributes to the latency.Įcho cancellation is a microphone feature that attempts to limit the echo or reverb effect when the audio captured by the microphone is played back in speakers and then, as a result, captured once more by the microphone, in an infinite loop. Latency is an estimation of the delay between the moment the audio signal reaching the microphone and the moment the audio signal is ready to be used by the capturing device. Typical values are 16 bits (CD audio and others), 8 bits (reduced bandwidth) and 24 bits (high-resolution audio). The sample size indicates how many bits are used to represent each audio sample. Typical values are 44,100 (CD audio), 48,000 (digital audio), 96,000 (audio mastering and post-production) and 192,000 (high-resolution audio). The sample rate indicates how many audio samples are taken each second.
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