Incident: Audio Quality Issues on Google Pixel 3 Phones.

Published Date: 2019-03-11

Postmortem Analysis
Timeline 1. The software failure incident with audio and call quality issues on Google Pixel 3 and 3 XL phones was reported back in November [82622]. 2. The article was published on 2019-03-11. 3. Estimation: The incident likely occurred in November 2018.
System 1. Google Pixel 3 and 3 XL audio and call quality system
Responsible Organization 1. Google - The software failure incident with audio and call quality issues on Google Pixel 3 and 3 XL phones can be attributed to Google, the manufacturer of the devices [82622].
Impacted Organization 1. Google Pixel 3 and 3 XL owners [82622]
Software Causes 1. Software bugs causing audio issues during calls on Google Pixel 3 and 3 XL phones [82622].
Non-software Causes 1. Hardware issue with the microphone in the first Pixel phone [Article 82622]
Impacts 1. Users of Google Pixel 3 and 3 XL experienced irritating issues with audio and call quality, including audio cutting in and out, echoes, sharp and tinny sounds, audio delays, and words lagging during calls [82622]. 2. Some proposed solutions such as rebooting to Safe Mode and factory reset did not entirely fix the reported issues [82622].
Preventions 1. Conducting thorough testing and quality assurance before releasing the software update that may have caused the audio and call quality issues on Google Pixel 3 and 3 XL phones [82622]. 2. Implementing a more robust monitoring system to quickly identify and address any emerging issues with the software, such as audio problems during calls, before they affect a larger number of users [82622]. 3. Enhancing communication channels with users to gather feedback and reports of software issues promptly, allowing for quicker problem resolution and mitigation [82622].
Fixes 1. Rebooting to Safe Mode and performing a factory reset were proposed solutions to fix the audio and call quality issues experienced by some Google Pixel 3 and 3 XL owners [82622].
References 1. Online forums such as Reddit and Google forums [82622] 2. Pixel community member [82622] 3. Android Authority [82622]

Software Taxonomy of Faults

Category Option Rationale
Recurring one_organization (a) The software failure incident related to audio and call quality issues with Google Pixel phones has happened before within the same organization. In 2017, hundreds of users complained about microphone problems with the first Pixel phone, which Google attributed to a hardware issue. This indicates a recurring issue with audio-related problems in Google's Pixel line of phones [82622]. (b) The software failure incident related to audio and call quality issues with Google Pixel phones has not been reported to have occurred at multiple organizations. The focus of the article is on the specific issues faced by Google Pixel 3 and 3 XL owners, and there is no mention of similar problems being experienced with phones from other manufacturers or organizations [82622].
Phase (Design/Operation) design (a) The software failure incident related to the design phase can be inferred from the article as it mentions issues with audio and call quality on Google Pixel 3 and 3 XL phones. Users reported problems such as audio cutting in and out, echoes, sharp and tinny sounds, and audio delays stacking up during calls to both cell phones and landlines. These issues seem to be related to the system development or updates of the phone's software, indicating a failure in the design phase [82622]. (b) The software failure incident related to the operation phase is not explicitly mentioned in the article.
Boundary (Internal/External) within_system (a) within_system: The software failure incident related to the audio and call quality issues experienced by some Google Pixel 3 and 3 XL owners is likely within the system. The article mentions that various online forum users described problems such as audio cutting in and out, echoes, sharp and tinny sounds, and audio delays. These issues seem to be related to the phone's internal software or hardware components affecting the audio and call quality [82622]. (b) outside_system: There is no specific mention in the article about the software failure incident being caused by contributing factors originating from outside the system. The focus of the article is on the issues faced by Pixel 3 and 3 XL owners related to audio and call quality problems, indicating that the failure is more likely within the system.
Nature (Human/Non-human) non-human_actions, human_actions (a) The software failure incident related to non-human actions in this case seems to be a technical issue within the Google Pixel 3 and 3 XL phones themselves. Users reported problems with audio quality during calls, such as audio cutting in and out, echoes, sharp and tinny sounds, and audio delays. These issues were not caused by human actions but rather seem to be inherent software or hardware problems within the devices [82622]. (b) On the other hand, human actions could be seen in the attempts to address the reported issues. Some users suggested solutions like rebooting to Safe Mode and performing a factory reset to try and resolve the audio quality problems. These actions were taken by users in response to the software failure incident, indicating human involvement in trying to troubleshoot and fix the issues [82622].
Dimension (Hardware/Software) hardware, software (a) The software failure incident related to hardware: The article mentions that in 2017, hundreds of users complained about microphone problems with the first Pixel, which Google cited was due to a hardware issue [82622]. (b) The software failure incident related to software: The article describes irritating issues with audio and call quality on Google Pixel 3 and 3 XL phones, where problems like audio cuts in and out, echoes, sharp and tinny sounds, and audio delays have been reported. Solutions proposed included rebooting to Safe Mode and a factory reset, indicating that the issues are related to the software [82622].
Objective (Malicious/Non-malicious) non-malicious (a) The articles do not mention any malicious intent behind the software failure incident related to the audio and call quality issues experienced by some Google Pixel 3 and 3 XL owners. The problems described seem to be technical issues with the devices rather than intentional harm caused by humans [82622]. (b) The software failure incident related to the audio and call quality issues with Google Pixel 3 and 3 XL phones appears to be non-malicious. Users reported problems such as audio cutting in and out, echoes, sharp and tinny sounds, and audio delays, which are more likely due to technical faults or bugs in the software rather than intentional harm [82622].
Intent (Poor/Accidental Decisions) unknown From the provided article [82622], there is no specific mention of the software failure incident being caused by poor decisions or accidental decisions. Therefore, it is unknown whether the software failure incident was due to poor decisions or accidental decisions.
Capability (Incompetence/Accidental) unknown (a) The software failure incident related to development incompetence is not explicitly mentioned in the provided article. Therefore, it is unknown whether the reported issues with the Google Pixel 3 and 3 XL audio and call quality were due to development incompetence. (b) The software failure incident related to accidental factors is not explicitly mentioned in the provided article. Therefore, it is unknown whether the reported issues with the Google Pixel 3 and 3 XL audio and call quality were due to accidental factors.
Duration temporary The software failure incident related to audio and call quality issues experienced by some Google Pixel 3 and 3 XL owners seems to be temporary rather than permanent. This is indicated by the fact that some solutions were proposed to address the problems, such as rebooting to Safe Mode and performing a factory reset. However, these solutions did not entirely fix the issues, suggesting that the problem is not a permanent one [82622].
Behaviour crash, value (a) crash: The article mentions issues with audio quality on Google Pixel 3 and 3 XL phones, where users experience problems such as audio cutting in and out, echoes, sharp and tinny sounds, and audio delays stacking up on top of each other during calls to both cell phones and landlines. These issues can be indicative of a crash where the system loses its state and fails to perform its intended function of maintaining clear audio quality during calls [82622]. (b) omission: The article does not specifically mention any instances where the system omits to perform its intended functions at an instance(s) [82622]. (c) timing: The article does not mention any instances where the system performs its intended functions correctly but too late or too early [82622]. (d) value: The article describes problems with the audio quality on Google Pixel 3 and 3 XL phones, including audio cutting in and out, echoes, sharp and tinny sounds, and audio delays stacking up on top of each other during calls. These issues suggest that the system is performing its intended function of transmitting audio, but incorrectly, leading to a value-related failure [82622]. (e) byzantine: The article does not mention any instances where the system behaves erroneously with inconsistent responses and interactions [82622]. (f) other: The other behavior described in the article is related to hardware issues that were cited by Google in the past with the first Pixel phone in 2017. This hardware issue caused microphone problems, indicating a different type of failure not related to software [82622].

IoT System Layer

Layer Option Rationale
Perception None None
Communication None None
Application None None

Other Details

Category Option Rationale
Consequence no_consequence The articles do not mention any consequences related to death, harm, basic needs, property loss, or non-human entities resulting from the software failure incident with Google Pixel 3 and 3 XL phones [82622]. There is no mention of any theoretical consequences or other consequences discussed in the articles. The reported issues mainly revolve around audio and call quality problems experienced by users, with potential solutions like rebooting to Safe Mode and factory reset not entirely resolving the issues.
Domain information (a) The software failure incident reported in the article is related to the information industry. The Google Pixel 3 and 3 XL phones, which are experiencing audio and call quality issues, are part of Google's flagship phone lineup that runs on the Android operating system [82622].

Sources

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