if you check the "use voice control area" check box on the sdcb controller, the phrase will be played with the preset volume value. if the check box is not checked, the volume setting of "ch vol" will be reflected. even if you change the volume setting during phrase playback, the volume during playback will not change.
the file formats that can be read by the speech lsi utility are as follows. file format: riff waveform audio format (extension: wav) sampling frequency: 4 to 96 [khz] bit resolution: 16[bit] or 8[bit] number of channels: 1 (monaural) codec: linear pcm in addition, stereotype files with two channels will be read after being converted to monaural type by the conversion function of the speech lsi utility.
the checksum cannot be confirmed on the speech lsi utility screen. it is described at the end of the information file (xxx.inf) generated when create rom is performed. the following is an example of the checksum at the end of the information file. in this case, the checksum is "6bf7h".
for riff wave files (* .wav), the bit precision corresponds to 16bit or 8bit. it does not support 24bit. please refer to "2.3.1. input files" of the speech lsi utility user's manual for the readable format.