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About This Item
Full Description
In GSM 06.01, a reference configuration for the speech transmission chain of the digital cellular telecommunications system is shown. According to this reference configuration, the speech encoder takes its input as a 13 bit uniform PCM signal either from the audio part of the mobile station or on the network side, from the PSTN via an 8 bit/A- or µ-law (PCS 1900) to 13 bit uniform PCM conversion. The encoded speech at the output of the speech encoder is delivered to a channel encoder unit which is specified in GSM 05.03. In the receive direction, the inverse operations take place.
The present document describes the detailed mapping between input blocks of 160 speech samples in 13 bit uniform PCM format to encoded blocks of 260 bits and from encoded blocks of 260 bits to output blocks of 160 reconstructed speech samples. The sampling rate is 8000 sample/s leading to an average bit rate for the encoded bit stream of 13 kbit/s. The coding scheme is the so-called Regular Pulse Excitation - Long Term prediction - Linear Predictive Coder, here-after referred to as RPE-LTP.
The present document also specifies the conversion between A- and µ-law (PCS 1900) PCM and 13 bit uniform PCM. Performance requirements for the audio input and output parts are included only to the extent that they affect the transcoder performance. The present document also describes the codec down to the bit level, thus enabling the verification of compliance to the present document to a high degree of confidence by use of a set of digital test sequences. These test sequences are described and are contained in archive en_300961v080101p0.ZIP which accompanies the present document.
Document History
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ETSI TS 146 010
Digital cellular telecommunications system (Phase 2+) (GSM); Full rate speech; Transcoding (3GPP TS 46.010 version 16.0.0 Release 16)- Most Recent
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ETSI TS 146 010
Digital cellular telecommunications system (Phase 2+) (GSM); Full rate speech; Transcoding (3GPP TS 46.010 version 15.0.0 Release 15)- Historical Version
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ETSI TS 146 010
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Digital cellular telecommunications system (Phase 2+); Full rate speech; Transcoding (3GPP TS 46.010 version 14.0.0 Release 14)- Historical Version
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ETSI TS 146 010
Digital cellular telecommunications system (Phase 2+); Full rate speech; Transcoding (3GPP TS 46.010 version 13.0.0 Release 13)- Historical Version
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ETSI TS 146 010
Digital cellular telecommunications system (Phase 2+); Full rate speech; Transcoding (3GPP TS 46.010 version 12.0.0 Release 12)- Historical Version
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ETSI TS 146 010
Digital cellular telecommunications system (Phase 2+); Full rate speech; Transcoding (3GPP TS 46.010 version 11.1.0 Release 11)- Historical Version
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ETSI TS 146 010
Digital cellular telecommunications system (Phase 2+); Full-rate speech; Transcoding (3GPP TS 46.010 version 10.0.0 Release 10)- Historical Version
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ETSI TS 146 010
Digital cellular telecommunications system (Phase 2+); Full-rate speech; Transcoding (3GPP TS 46.010 version 9.0.0 Release 9)- Historical Version
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ETSI TS 146 010
Digital cellular telecommunications system (Phase 2+); Full-rate speech; Transcoding (3GPP TS 46.010 version 8.0.0 Release 8)- Historical Version
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ETSI TS 146 010
Digital cellular telecommunications system (Phase 2+); Full-rate speech; Transcoding (3GPP TS 46.010 version 7.0.0 Release 7)- Historical Version
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ETSI TS 146 010
Digital cellular telecommunications system (Phase 2+); Full-rate speech transcoding (3GPP TS 46.010 version 6.0.0 Release 6)- Historical Version
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ETSI TS 146 010
Digital cellular telecommunications system (Phase 2+); Full-rate speech transcoding (3GPP TS 46.010 version 5.0.0 Release 5)- Historical Version
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ETSI TS 146 010
Digital cellular telecommunications system (Phase 2+); Full-rate speech transcoding (3GPP TS 46.010 version 4.1.0 Release 4)- Historical Version
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ETSI TS 146 010
Digital cellular telecommunications system (Phase 2+); Full-rate speech transcoding (3GPP TS 46.010 version 4.0.0 Release 4)- Historical Version