TS 26.177
Speech Enabled Services (SES) –
Distributed Speech Recognition (DSR)
Extended Advanced Front-End Test Sequences
V17.0.0 (PDF)
2022/03 9 p.
V16.0.0
2020/06 9 p.
V15.0.0
2018/06 9 p.
V14.0.0
2017/03 9 p.
V13.0.0
2015/12 9 p.
V12.0.0
2014/09 9 p.
V11.1.0
2013/12 9 p.
V10.0.0
2011/04 9 p.
V9.0.0
2009/12 9 p.
V8.0.0
2008/12 9 p.
V7.0.0
2007/06 9 p.
V6.0.0
2005/01 9 p.
- Rapporteur:
- Mr. Pearce, David
Content for TS 26.177 Word version: 17.0.0
1 Scope p. 5
The present document specifies the digital test sequences for the DSR Extended Advanced Front-end speech codec. These sequences can be used to test for a bit exact implementation of the DSR Advanced Front-end codec and quantization (TS 26.243).
2 References p. 5
The following documents contain provisions, which through reference in this text, constitute provisions of the present document.
- References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific.
- For a specific reference, subsequent revisions do not apply.
- For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
[1]
TS 26.243: "ANSI-C code for the Fixed-Point Distributed Speech Recognition Extended Advanced Front-end".
[2]
ETSI ES 202 050 (2007-01) V1.1.5: "Speech Processing, Transmission and Quality Aspects (STQ); Distributed speech recognition; Advanced front-end feature extraction algorithm; Compression algorithms DSR advanced front end."
[3]
ETSI ES 202 212 (2005-11) V1.1.2: "Speech Processing, Transmission and Quality Aspects (STQ); Distributed speech recognition; Extended advanced front-end feature extraction algorithm; Compression algorithms; Back-end speech reconstruction algorithm".
[4]
TS 26.074: "AMR speech codec test sequences"
[5]
TS 26.174: "Adaptive Multi-Rate (AMR) Wideband speech codec test sequences"
3 Abbreviations p. 5
For the purposes of the present document, the following abbreviations apply:
AFE
Advanced Front-end
AMR
Adaptive Multi-Rate
AMR-NB
AMR Narrowband
AMR-WB
AMR Wideband
DSR
Distributed Speech Recognition
ETSI
European Telecommunications Standards Institute
GSM
Global System for Mobile communications
SES
Speech Enabled Services
VAD
Voice Activity Detector
X-AFE
eXtended Advanced Front-end
4 General p. 6
Digital test sequences are provided to test for a bit exact implementation of the Distributed Speech Recognition Extended Advanced Front-end (TS 26.243).
The test sequences may also be used to verify installations of the ANSI C code in TS 26.243.
Clause 5 describes the format of the files, which contain the digital test sequences.
5 Test sequence format p. 6
This clause provides information on the format of the digital test sequences for the DSR Extended Advanced Front-end (TS 26.243).
5.1 File format p. 6
The test sequence files in PC (little-endian) byte order are provided in archive files (ZIP format), which accompany the present document.
Following decompression, three types of file are provided:
- *.inp - Input to the speech encoder.
- *.cep - Cepstral output of the encoder, input to the quantizer.
- *.pitch - Pitch output of the encoder, input to the quantizer.
- *.class - Class output of the encoder, input to the quantizer.
- *.vad - VAD output of the encoder, input to the quantizer.
- *.bs - Output of the quantizer
6 DSR test sequences p. 6
Forty-three encoder input sequences are provided, 22 with 8kHz sampling, 23 with 16kHz sampling.
$ Change history p. 7
