If you are unable to get sound out of the app, please check the mute switch on your device. The mute on iOS devices is very deceptive, because many apps (including Apple's own music player) ignore this setting. For thorough information about the mute switch, please see Apple's support page about the side switch.
If you have a question about Tachyon, you might find an answer to it on our FAQ page or in our online manual.
If you have any issues with Tachyon, please contact Wizdom Music at: