G.729
E95665
G.729 is a widely used ITU-T audio codec standard that compresses voice for bandwidth-efficient transmission in VoIP and other telephony applications.
All labels observed (12)
| Label | Occurrences |
|---|---|
| G.729 canonical | 10 |
| G.729 Annex A | 2 |
| G.729 Annex B | 2 |
| G.729 Annex E | 2 |
| G.729 Annex J | 2 |
| CS-ACELP | 1 |
| G.729 Annex D | 1 |
| G.729 Annex H | 1 |
| G.729 Annex I | 1 |
| G.729 Annex K | 1 |
| G.729.1 | 1 |
| G729 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T793509 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: G.729 Context triple: [ITU Telecommunication Standardization Sector, notableStandard, G.729]
-
A.
G.722
G.722 is a wideband audio codec standard that provides higher-quality voice transmission than traditional narrowband codecs, commonly used in VoIP and teleconferencing applications.
-
B.
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.
-
C.
V.92
V.92 is an ITU-T modem standard that defines enhanced dial-up Internet connection features such as faster upload speeds, quicker call setup, and modem-on-hold capabilities.
-
D.
V.90
V.90 is an ITU-T modem standard that enabled dial-up internet connections at speeds up to 56 kbit/s over traditional telephone lines.
-
E.
Versoix
Versoix is a Swiss municipality on the shores of Lake Geneva, known as a residential suburb of Geneva with lakeside promenades and a mix of urban and natural landscapes.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: G.729 Target entity description: G.729 is a widely used ITU-T audio codec standard that compresses voice for bandwidth-efficient transmission in VoIP and other telephony applications.
-
A.
G.722
G.722 is a wideband audio codec standard that provides higher-quality voice transmission than traditional narrowband codecs, commonly used in VoIP and teleconferencing applications.
-
B.
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.
-
C.
V.92
V.92 is an ITU-T modem standard that defines enhanced dial-up Internet connection features such as faster upload speeds, quicker call setup, and modem-on-hold capabilities.
-
D.
V.90
V.90 is an ITU-T modem standard that enabled dial-up internet connections at speeds up to 56 kbit/s over traditional telephone lines.
-
E.
Versoix
Versoix is a Swiss municipality on the shores of Lake Geneva, known as a residential suburb of Geneva with lakeside promenades and a mix of urban and natural landscapes.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
ITU-T Recommendation
ⓘ
audio codec standard ⓘ speech codec ⓘ |
| algorithmicDelay | 15 ms ⓘ |
| annexAFeature | reduced complexity ⓘ |
| annexBFeature |
comfort noise
ⓘ
silence compression ⓘ |
| annexDFeature | 6.4 kbit/s operation ⓘ |
| annexEFeature | 11.8 kbit/s operation ⓘ |
| annexHFeature | variable bit-rate coding ⓘ |
| applicationDomain |
Voice over IP
ⓘ
bandwidth-constrained networks ⓘ packet-switched telephony ⓘ |
| bandwidth | 300–3400 Hz ⓘ |
| bitRate | 8 kbit/s ⓘ |
| category | narrowband codec ⓘ |
| codingAlgorithm | Conjugate-Structure Algebraic-Code-Excited Linear Prediction ⓘ |
| codingAlgorithmAbbreviation |
CS-ACELP
ⓘ
linked to:
G.729
|
| compressionType | lossy compression ⓘ |
| designedFor | bandwidth-efficient transmission ⓘ |
| focusesOn | narrowband speech coding ⓘ |
| frameDuration | 10 ms ⓘ |
| frameSize | 80 samples ⓘ |
| hasAnnex |
G.729 Annex A
ⓘ
linked to:
G.729
G.729 Annex B ⓘ
linked to:
G.729
G.729 Annex D ⓘ
linked to:
G.729
G.729 Annex E ⓘ
linked to:
G.729
G.729 Annex H ⓘ
linked to:
G.729
G.729 Annex I ⓘ
linked to:
G.729
G.729 Annex J ⓘ
linked to:
G.729
G.729 Annex K ⓘ
linked to:
G.729
|
| lookAhead | 5 ms ⓘ |
| maintainedBy |
ITU-T
ⓘ
linked to:
ITU Telecommunication Standardization Sector
|
| optimizedFor | low bit-rate speech transmission ⓘ |
| relatedStandard |
G.711
ⓘ
G.723.1 ⓘ G.726 ⓘ |
| samplingRate | 8000 Hz ⓘ |
| standardizedBy | ITU-T Study Group 16 ⓘ |
| supports |
comfort noise generation
ⓘ
discontinuous transmission ⓘ real-time voice communication ⓘ toll-quality speech at 8 kbit/s ⓘ voice activity detection ⓘ |
| usedIn |
IP telephony gateways
ⓘ
VoIP handsets ⓘ enterprise VoIP systems ⓘ softphones ⓘ |
| uses |
algebraic codebook
ⓘ
analysis-by-synthesis coding ⓘ linear prediction ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: G.729 Description of subject: G.729 is a widely used ITU-T audio codec standard that compresses voice for bandwidth-efficient transmission in VoIP and other telephony applications.
Referenced by (25)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: G.729
linked to: G.729
linked to: G.729
linked to: G.729
linked to: G.729
linked to: G.729
linked to: G.729