Calls initiated via wideband audio require high-definition communication across the entire contact chain, otherwise calling back to normal narrowband audio is returned. Wideband audio has a frequency spectrum of 50 Hz to 7 kHz compared to narrowband audio, which restricts audio frequencies to 300 Hz to 3.4 kHz and does not meet bandwidth restrictions.
Wideband also uses g.722 codec and its variants to capture audio samples at 16 kHz per second. In comparison, the g.711 codec and an 8 kHz sampling rate are used in the narrowband recording; this high-quality codec enables devices to relay deeper and better speech tones and collect information. The resulting algorithmic delay is calculated to be 0.125 milliseconds (ms) if a call has to revert from high definition to narrowband as a system does not permit wideband in the chain.
Unlike conventional sound-band or narrowband phone calls restricted to audio frequencies, HD language is a common charging feature for digital telephony. HD voice, the audio signal received over a telephone line, can be applied to a broader frequency range, leading to higher voice quality. Calls initiated via wideband audio require high-definition communication across the entire contact chain, otherwise calling back to normal narrowband audio is returned. Wideband audio has a frequency spectrum of 50 Hz to 7 kHz compared to narrowband audio, which restricts audio frequencies to 300 Hz to 3.4 kHz and does not meet bandwidth restrictions.
Wideband also uses g.722 codec and its variants to capture audio samples at 16 kHz per second. In comparison, the g.711 codec and an 8 kHz sampling rate are used in the narrowband recording, this high-quality codec enables devices to relay deeper and better speech tones and collect information. The resulting algorithmic delay is calculated to be 0.125 milliseconds (ms) if a call has to revert from high definition to narrowband as a system does not permit wideband in the chain.
Unlike conventional sound-band or narrowband phone calls restricted to audio frequencies, HD language is a common charging feature for digital telephony. HD voice, the audio signal received over a telephone line, can be applied to a broader frequency range, leading to higher voice quality.