Explanation of the audit information provided in "callinfo.tbl" The file "callinfo.tbl" contains the information produced by manual auditing of the CallHome Japanese conversations. The auditing process was set up to accomplish two things: (a) provide information about the speakers and channel quality for the conversation, and (b) establish the region of the conversation to be used for transcription. The table file contains multiple lines for each conversation, to provide the following information: - total number of speakers and total number of females and males - channel quality for each side of the conversation (see below) - number of speakers per channel and number of males/females per channel - gender, approximate age, and other features of each speaker Each line begins with the first two letter of the language followed by the four-digit conversation number. Here is a sample set of lines for one of the conversations: ja_0696 ntalkers=2 nfemale=2 nmale=0 ja_0696 siA ntalkers=1 nfemale=1 nmale=0 ja_0696 siA difficulty=4 bg_noise=2 chan_noise=4 distortion=3 crosstalk=2 ja_0696 siB ntalkers=1 nfemale=1 nmale=0 ja_0696 siB difficulty=4 bg_noise=2 chan_noise=3 distortion=3 crosstalk=2 ja_0696 taA sex=female age=adult rate=fast artic=mumbled accent="standard - Yokohama" acc_pron=2 dial_wds=1 ja_0696 taA comment She talked very fast and mumbled. ja_0696 taB sex=female age=adult rate=fast artic=mumbled accent="standard - Yokohama" acc_pron=2 dial_wds=1 ja_0696 taB comment She talked a very fast and mumbled so that it was a very difficult to transcribe. The first line gives the total number of speakers in the transcribed portion of the conversation. The next four lines indicate the channel quality and the number of speakers on a per-channel basis. The remaining lines provide information on each of the speakers (typically, there are only two speakers in the conversation - one per channel - so there would be only two lines in this portion of the table). The information on channel quality should be interpreted as follows: - Difficulty refers to the overall quality of the channel in terms of number of speakers, background noise, channel noise, speed, accent, articulation, etc. - Background noise refers to the amount of sounds not made by the speakers, e.g., baby crying, television, radio, etc. - Channel noise refers to static or channel break-up. - Distortion refers to echo and other types of recording problems. - Crosstalk refers to audibility of the channel A speaker on channel B, and vice-versa (i.e. due to the echo in the telephone circuit) All attributes are rated on a scale of 1 to 5, where 1 always refers to optimal channel conditions and 5 refers to the least optimal, but still usable channel conditions.