content generated by attendees during the meeting. [0012] In some configurations, the language model preparation service generates the meeting-specific statistical language model in response to receiving a pre-meeting signal generated by a schedule processor and trigger service (“STS”). The pre-meeting signal can include data describing the meeting such as, for example, data identifying the meeting and data identifying a start time of the meeting. [0013] In order to generate the pre-meeting signal, the STS can retrieve a list of upcoming meetings on a predefined schedule (e.g. once per day). With this data and the start time of a meeting, the STS can generate a pre-meeting signal a predetermined amount of time (e.g. one hour) prior to the start time of the meeting. In this manner, generation of a meeting-specific statistical language model for a meeting can begin at the predetermined amount of time prior to the meeting. [0014] The STS might also, or alternately, subscribe to receive meeting change event notifications describing changes to a meeting such as, for example, the addition or removal of attendees, the addition or removal of files, or the modification of the start time of the meeting. The STS can generate a pre-meeting signal in response to receiving a meeting change event notification. This can occur prior to or during a meeting. For example, additional signals might be generated during a meeting as participants join or leave a meeting. In this manner, the meeting-specific statistical language model for a meeting can be updated with additional or modified meeting-specific data prior to or during the meeting to keep the context for the transcription focused to active participants and further increase the accuracy of the generated transcriptions. [0015] It should be appreciated that the above-described subject matter can be implemented as a computer-controlled apparatus, a computer-implemented method, a computing device, or as an article of manufacture such as a computer readable medium. These and various other features will be apparent from a reading of the following Detailed Description and a review of the associated drawings. [0016] This Summary is provided to introduce a brief description of some aspects of the disclosed technologies in a simplified form that are further described below in the Detailed Description. This Summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended that this Summary be used to limit the scope of the claimed subject matter. Furthermore, the claimed subject matter is not limited to implementations that solve any or all disadvantages noted in any part of this disclosure.