G.711

E93646

G.711 is a widely used ITU-T audio codec standard for pulse code modulation (PCM) of voice in traditional telephony and VoIP systems.

AI illustration

How this image was made

AI-generated illustration of G.711

This AI-generated illustration was produced by black-forest-labs/FLUX.2-dev (1024x1024) from a prompt written by openai/gpt-oss-120b from the entity's label + description.

Prompt

Generate an image of G.711 (G.711 is a widely used ITU-T audio codec standard for pulse code modulation (PCM) of voice in traditional telephony and VoIP systems.)

All labels observed (6)

Label Occurrences
G.711 canonical 15
PCM 3
G.711.0 2

How this entity was disambiguated

Statements (47)

Predicate Object
instanceOf ITU-T recommendation ⓘ
audio codec standard ⓘ
pulse code modulation standard ⓘ
advantage high quality with low complexity ⓘ
applicationDomain VoIP ⓘ
multimedia communications ⓘ
telephony ⓘ
audioBandwidth 300–3400 Hz ⓘ
backwardCompatibilityWith traditional PSTN ⓘ
bitRate 64 kbit/s ⓘ
channelType narrowband ⓘ
codingMethod pulse code modulation ⓘ
codingType waveform codec ⓘ
compandingLaw A-law ⓘ
μ-law ⓘ
comparedTo G.722 ⓘ
G.729 ⓘ
compressionRatio approximately 2:1 relative to linear PCM ⓘ
compressionType logarithmic PCM companding ⓘ
definedIn ITU-T Recommendation G.711 ⓘ
linked to: G.711
delayCharacteristic very low algorithmic delay ⓘ
disadvantage relatively high bit rate for modern networks ⓘ
firstStandardized 1972 ⓘ
focus audio companding ⓘ
voice encoding ⓘ
frameSize 1 sample per 125 µs ⓘ
licenseStatus generally royalty-free ⓘ
mosScore around 4.1 ⓘ
packetizationTypical 20 ms in VoIP implementations ⓘ
publishedBy ITU-T ⓘ
qualityLevel narrowband telephony quality ⓘ
regionUsage A-law predominantly used in Europe ⓘ
μ-law predominantly used in Japan ⓘ
μ-law predominantly used in North America ⓘ
sampleSize 8 bits per sample ⓘ
samplingRate 8 kHz ⓘ
sector ITU Telecommunication Standardization Sector ⓘ
standardNumber G.711 ⓘ
successorOrRelatedStandard G.711.0 ⓘ
linked to: G.711

G.711.1 ⓘ
linked to: G.711
usedIn H.323 systems ⓘ
IP phones ⓘ
ISDN ⓘ
PBX systems ⓘ
SIP-based systems ⓘ
VoIP gateways ⓘ
public switched telephone network ⓘ

How these facts were elicited

Referenced by (25)

Full triples — surface form annotated when it differs from this entity's canonical label.

ITU-T Recommendations → hasPart → ITU-T Recommendation G.711 ⓘ
linked to: G.711
G.711 → standardNumber → G.711 ⓘ
G.711 → definedIn → ITU-T Recommendation G.711 ⓘ
linked to: G.711
G.711 → successorOrRelatedStandard → G.711.0 ⓘ
linked to: G.711
G.711 → successorOrRelatedStandard → G.711.1 ⓘ
linked to: G.711
G.729 → relatedStandard → G.711 ⓘ
Peacekeeping Crisis Management Unit → abbreviation → PCMU ⓘ
linked to: G.711
MCU (multipoint control unit) → supports → G.711 ⓘ
subject linked to: MCUs (multipoint control units)
NetMeeting → audioCodec → G.711 ⓘ
Presidency of the Council of Ministers of Peru → shortName → PCM ⓘ
linked to: G.711
VoIP → usesCodec → G.711 ⓘ
ITU-T audio coding standards family → includesStandard → G.711.0 ⓘ
linked to: G.711
ITU-T audio coding standards family → includesStandard → G.711.1 ⓘ
linked to: G.711
G.723.1 → relatedStandard → G.711 ⓘ
G.726 → relatedTo → G.711 ⓘ
CCITT → notableStandard → G.711 ⓘ
Linphone → supportsCodec → G.711 ⓘ
Compact Disc → audioEncodingFormat → PCM ⓘ
subject linked to: CD
linked to: G.711
Asterisk → supportsCodec → G.711 ⓘ
Amazon Polly → supportsOutputFormat → PCM ⓘ
linked to: G.711