Simple categories matching wideband:

• noise,
• information,
• signal,
• source,

Members with property wideband:

• sound_attack,
• starlight_fig,
• audio,
• speech,
• human_voice,
• test_item,
• random_noise,
• white_noise,
• speech_signal,
• video_signal,
• noise_generator,
• channel_noise,
• noise,
• voice,
• thermal_noise,
• receiver_noise,
• impulsive_noise,
• image,
• video_modulation,