If someone's voice sounds muddy or too high-pitched in your video, what specific audio tool can you use to adjust only certain sound frequencies to make their voice sound clearer?

To adjust only certain sound frequencies to make a voice sound clearer, the specific audio tool to use is an equalizer, often referred to as an EQ. An equalizer allows you to change the volume, or gain, of specific frequency ranges within an audio signal. Sound frequencies refer to the pitch of a sound, measured in Hertz (Hz); lower frequencies correspond to bass and fullness, while higher frequencies relate to treble and brightness. Different parts of the frequency spectrum contribute to different characteristics of a voice. For a muddy voice, which typically has an excess of energy in the lower-mid frequencies, often around 200-500 Hz, an equalizer is used to identify these problematic frequencies and then reduce their gain. Reducing the gain, or performing a 'cut,' in these specific frequency bands removes the unwanted muddiness, making the voice sound less boomy and more defined. Conversely, if a voice sounds too high-pitched or shrill, it often contains an overabundance of energy in the upper-mid to high frequencies, commonly above 3000 Hz. An equalizer can pinpoint these harsh frequencies, and by reducing their gain, or 'cutting' them, the voice will sound less piercing and more balanced. After addressing problematic frequencies, an equalizer can also be used to boost specific frequencies, typically in the presence range (e.g., 1000-4000 Hz), to enhance the overall clarity and intelligibility of the voice, helping it stand out more effectively. This precise adjustment capability of an equalizer allows for targeted improvements in vocal quality without affecting other unrelated frequencies.