13. A computer system for determining speech effectiveness, the computer system comprising: one or more computer processors; one or more computer readable storage media; program instructions stored on the computer readable storage media for execution by at least one of the one or more processors, the program instructions comprising: program instructions to receive speech input; program instructions to determine, based, at least in part, on the received speech input, a speaking mode of the received speech input, the speaking mode being one of: a conversation with words spoken by two or more people during a predetermined time interval, and a presentation with words spoken by one person and not any other person during a predetermined time interval; program instructions to detect at least one problem with the speech input; if the speaking mode of the received speech input is determined to be a presentation and not a conversation, program instructions to weight the detected at least one problem with the speech input using a first factor, and, if the speaking mode of the received speech input is determined to be a conversation and not a presentation, program instructions to weight the detected at least one problem with the speech input using a second factor; and program instructions to notify a user of the detected at least one problem with the speech input, if a rate of occurrence of the detected at least one problem exceeds a pre-defined threshold of the at least one problem with the speech input, wherein the rate of occurrence is based on the weighting of the at least one problem with the speech input and a base value of occurrence of the at least one problem with the speech input.
13. A computer system for determining speech effectiveness, the computer system comprising: one or more computer processors; one or more computer readable storage media; program instructions stored on the computer readable storage media for execution by at least one of the one or more processors, the program instructions comprising: program instructions to receive speech input; program instructions to determine, based, at least in part, on the received speech input, a speaking mode of the received speech input, the speaking mode being one of: a conversation with words spoken by two or more people during a predetermined time interval, and a presentation with words spoken by one person and not any other person during a predetermined time interval; program instructions to detect at least one problem with the speech input; if the speaking mode of the received speech input is determined to be a presentation and not a conversation, program instructions to weight the detected at least one problem with the speech input using a first factor, and, if the speaking mode of the received speech input is determined to be a conversation and not a presentation, program instructions to weight the detected at least one problem with the speech input using a second factor; and program instructions to notify a user of the detected at least one problem with the speech input, if a rate of occurrence of the detected at least one problem exceeds a pre-defined threshold of the at least one problem with the speech input, wherein the rate of occurrence is based on the weighting of the at least one problem with the speech input and a base value of occurrence of the at least one problem with the speech input. 16. The computer system of claim 13 , further comprising: program instructions to determine whether a first speaking mode of the received speech input has changed, wherein a speaking mode of the received speech input is one of a conversation and a presentation; responsive to determining the first speaking mode of the received speech input speech input type has changed, program instructions to determine, based on the received speech input, a second speaking mode of the received speech input; program instructions to detect, based, at least in part, on the second speaking mode of the received speech input, at least one problem with the speech input; program instructions to determine, based, at least in part, on the second speaking mode of the received speech input and the detected at least one problem with the speech input, whether the rate of occurrence of the detected at least one problem with the speech input exceeds the pre-defined threshold of the at least one problem with the speech input; and responsive to determining that the rate of occurrence of the detected at least one problem with the speech input exceeds the pre-defined threshold of the at least one problem with the speech input, program instructions to notify the user.