Editing Discrete cosine transform (section)

====Speech coding====
{| class="wikitable"
|-
![[Speech coding]] standard !! Year
!Common applications
|-
|[[AAC-LD]] (LD-MDCT)<ref name="Schnell" />
|1999
|[[Mobile telephony]], [[voice-over-IP]] (VoIP), [[iOS]], [[FaceTime]]<ref name="AppleInsider standards 1"/>
|-
|[[Siren (codec)|Siren]]<ref name="Hersent" />
|1999
|[[VoIP]], [[wideband audio]], [[G.722.1]]
|-
|[[G.722.1]]<ref name="Lutzky" />
|1999
|VoIP, wideband audio, [[G.722]]
|-
|[[G.729.1]]<ref name="Nagireddi" />
|2006
|[[G.729]], VoIP, wideband audio,<ref name="Nagireddi" /> [[mobile telephony]]
|-
|[[Enhanced Variable Rate Codec B|EVRC-WB]]<ref name="Britanak"/>{{rp|page=[https://books.google.com/books?id=cZ4vDwAAQBAJ&pg=PA31 31], 478]}}
|2007
|[[Wideband audio]]
|-
|[[G.718]]<ref name="ITU-T" />
|2008
|VoIP, wideband audio, mobile telephony
|-
|[[G.719]]<ref name="Britanak"/>
|2008
|[[Teleconferencing]], [[videoconferencing]], [[voice mail]]
|-
|[[CELT]]<ref name="Terriberry" />
|2011
|VoIP,<ref name="ekiga" /><ref name="FreeSWITCH" /> mobile telephony
|-
|[[Enhanced Voice Services]] (EVS)<ref name="EVS" />
|2014
|Mobile telephony, VoIP, wideband audio
|}