MCV QoE Mouth To Ear Latency Measurement Data

                                            [
  "006:55"
]
                                        

                                            {
  "fn": "Alison Kahn",
  "hasEmail": "mailto:alison.kahn@nist.gov"
}
                                        

                                            [
  {
    "title": "Mission Critical Voice QoE Mouth-to-Ear Latency Measurement Methods",
    "format": "PDF",
    "mediaType": "application/pdf",
    "description": "Mouth-to-ear (M2E) latency describes the time it takes speech input in a voice communication transmit device to be output from a receiving device, and has been identifed as a key component of quality of experience (QoE) in communications. NIST?s PSCR division developed a method to measure and quantify the M2E latency of any communications system transmitting audio, with specifc emphasis on push to talk (PTT) devices. This measurement method is the frst step in establishing QoE key performance indicators (KPI) for mission critical voice (MCV) and a measurement system to quantify these QoE KPIs. Additional measurement methods will be established and published in the near future. The measurement system provides a fair platform for the comparisons of M2E latency across radio communications technologies. Both single and two location measurement systems were developed. The single location measurement system is a simpler setup ideal for measurements performed in a single, controlled setting. The two location system allows for the measurement of M2E latency between devices in two distinct locations and adds the capability to see potential effects of distance and signal propagation on the latency a user experiences. Example measurements of the M2E latency of VHF and UHF land mobile radios (LMR) operating in both direct mode and in trunked mode were performed. These tests demonstrated that both the single and two location tests return consistent measurement results.",
    "downloadURL": "https://doi.org/10.6028/NIST.IR.8206"
  },
  {
    "title": "mouth2ear repository",
    "format": "website",
    "mediaType": "text/html",
    "description": "The purpose of this software is to measure the mouth-to-ear (M2E) latency of a push-to-talk network. M2E latency characterizes the time between speech input into one communications device and its output through another. M2E latency has been identified as a key metric of quality of experience (QoE) in communications. NIST?s PSCR group developed this software to measure and quantify the M2E latency of Push To Talk (PTT) devices.",
    "downloadURL": "https://github.com/usnistgov/mouth2ear"
  },
  {
    "title": "Microcontroller Firmware",
    "format": "website",
    "mediaType": "text/html",
    "description": "This Repository is for the microcontroller utilized in the PSCR MCV QoE measurement system. This code is utilized by the measurement systems described in NIST IR 8206 and NIST IR 8275. The code is written for the TI MSP430F5529 processor and was developed using a MSP EXP430F5529LP LaunchPad board.  The code was compiled and loaded using TI Code Composer Studio (CCS) IDE, available here: http://www.ti.com/tool/CCSTUDIO.",
    "downloadURL": "https://doi.org/10.18434/M32086"
  },
  {
    "mediaType": "application/zip",
    "downloadURL": "https://s3.amazonaws.com/nist-midas/1865/Delay_Values.zip"
  },
  {
    "mediaType": "text/plain",
    "downloadURL": "https://s3.amazonaws.com/nist-midas/1865/Delay_Values.zip.sha256"
  },
  {
    "mediaType": "application/zip",
    "downloadURL": "https://s3.amazonaws.com/nist-midas/1865/Processed-Audio.zip"
  },
  {
    "mediaType": "text/plain",
    "downloadURL": "https://s3.amazonaws.com/nist-midas/1865/Processed-Audio.zip.sha256"
  },
  {
    "mediaType": "text/plain",
    "downloadURL": "https://s3.amazonaws.com/nist-midas/1865/README.txt"
  },
  {
    "mediaType": "text/plain",
    "downloadURL": "https://s3.amazonaws.com/nist-midas/1865/README.txt.sha256"
  },
  {
    "mediaType": "application/zip",
    "downloadURL": "https://s3.amazonaws.com/nist-midas/1865/Raw%20Data.zip"
  },
  {
    "mediaType": "text/plain",
    "downloadURL": "https://s3.amazonaws.com/nist-midas/1865/Raw%20Data.zip.sha256"
  }
]
                                        

                                            [
  "Audio; Communications; Delay; Direct Mode; Handset; Key Performance Indicator (KPI); Land Mobile Radio (LMR); Latency; Mission Critical Push To Talk (MCPTT); Mission Critical Voice (MCV); Mouth-to-ear (M2E); Project 25 (P25); Public Safety; Push To Talk (PTT); Quality of Experience (QoE); Quality of Service (QoS); Repeater; Trunked Mode; Ultra High Frequency (UHF); Very High Frequency (VHF)."
]
                                        

                                            [
  "en"
]
                                        

                                            [
  "006:045"
]
                                        

                                            {
  "name": "National Institute of Standards and Technology",
  "@type": "org:Organization"
}
                                        

                                            [
  "https://doi.org/10.6028/NIST.IR.8206"
]
                                        

                                            [
  "Advanced Communications:Wireless (RF)",
  "Public Safety:First responder preparedness",
  "Public Safety:Public safety communications research"
]