There are several free sound quality apps available that offer more than just ringtones. Here are a few popular ones:
VLC Media Player: VLC is a versatile media player that supports a wide range of audio formats. It also includes an equalizer and various audio filters, allowing you to customize and enhance the sound quality.
Equalizer FX: This app provides a system-wide equalizer for Android devices. It allows you to adjust and fine-tune audio settings for different frequencies, offering better control over the sound output.
WaveEditor for Android: WaveEditor is a powerful audio editing app that allows you to record, edit, and apply effects to audio files. It offers features such as noise reduction, normalization, equalization, and more.
Audacity: Audacity is a popular open-source audio editing software available for Windows, macOS, and Linux. It provides a range of tools for editing and enhancing audio, including effects, equalization, noise removal, and more.
SoundCloud: While primarily known as a music streaming platform, SoundCloud also offers a variety of user-uploaded audio content, including podcasts, interviews, field recordings, and soundscapes. You can explore and discover high-quality audio content in different genres.
These are just a few examples, and there are many more sound quality apps available depending on your specific needs and platform. It's worth exploring app stores or online communities dedicated to audio enthusiasts for further recommendations.