Press Stop and you'll immediately be able to play that noise at different pitches on the virtual keyboard. The Sampler lets you make your own instruments from scratch. It's the technology behind many of GarageBand's other instruments, which are based on recordings or samples of real instruments. Sampling involves taking an audio recording and mapping it across a keyboard so you can perform it like an instrument. To do so, tap the instrument settings (three sliders icon) and reduce the Track Volume control. The Compressor control is useful for avoiding a vocal becoming drowned out by other sounds, but it's often necessary to turn down the volume of the recording after turning up the Compressor. There aren't a huge number and some are fairly gimmicky, but Small Room and Large Room work well for vocals and most other instruments. Once you have something recorded, try out some of the effects. GarageBand uses the iOS device's built in microphone by default, so you just need to position the device so the microphone is near to the source. Also consider enabling the Noise Gate function to cut out background noises for the sections when you're not playing or singing. It's useful to hear yourself clearly, so tap the plug icon and enable the Monitor option. It's best to use headphones to avoid recording the existing tracks at the same time. Audio Recorder lets you capture the sound of a real instrument or your voice. All of the above are virtual instruments where the app generates the sounds.

Inter audio apps for garageband