The tremolo effect adds vibrato to a guitar sound and it’s pretty easy to implement on iOS with the TremoloPod app.
Tremolo is popular in rock, surf and country music, particularly if you have a Fender amp like the ’65 Deluxe Reverb. If your amp doesn’t have a tremolo control you can get the effect on your iPhone or iPad with TremoloPod.
The app features a virtual guitar cable so you can plug headphones into your device and connect them to your amp or PA system. You can also connect external devices such as mics and instruments if you have an audio interface.
You can create ‘as many independent pod effects’ as you like, which is useful for live performances where you may want to change sounds at different times. The app includes a built-in recorder so you can record your music and export it in WAV format.
The tremolo effect adds vibrato to a guitar sound and it’s pretty easy to implement on iOS with the TremoloPod app. This app is based on the same audio engine as my FlangerPod and DelayPod apps, which I also highly recommend.
TremoloPod features a simple interface with four sliders for controlling the speed, depth, waveform and volume of the effect. The waveform slider controls the shape of the modulation function, which is what gives tremolo its distinctive character. The square wave setting results in a staccato chop sound while smoother sawtooth and sine waves produce more of a pulsating effect.
One great thing about TremoloPod is that it has no input latency. This means you can use it as a real-time effect without worrying about lag between your playing and what you hear coming out of your amp or headphones. This makes it an ideal choice for both practice sessions and recording/performance situations where low input latency is essential.”
The app supports AudioBus, Inter-App Audio and Audiobus State Saving so it’s easy to work with this effect in any iOS music setup.
The tremolo effect adds vibrato to a guitar sound and it’s pretty easy to implement on iOS with the TremoloPod app.
The main controls are a speed slider, a depth slider and a switch that switches between Sine and Square waveforms. The speed slider determines how fast the effect is while the depth slider determines how much of the effect you hear. The waveform switch changes the modulation between a smooth sine wave and a choppy square wave.
The app works well, but I would like to see more controls in future updates. It would be nice if there was at least one knob that could be assigned to different parameters since sliders can be difficult to control with your thumb while playing guitar. If you do get this app, I recommend buying it on an iPad so that you have more screen space for manipulating the controls.
TremoloPod comes with an extensive help section that goes over all of the controls as well as some examples using different settings and instruments. There is also an option for in-app feedback so you can report bugs or make suggestions for future updates directly from inside the app.
TremoloPod is available now on the App Store for $1.99 (universal binary).
The tremolo effect adds vibrato to a guitar sound and it’s pretty easy to implement on iOS with the TremoloPod app.
Tremolo (not to be confused with vibrato) is a variation of amplitude that repeats at a certain rate. It’s most commonly used in a guitar or organ when the player wants to add some feel to their playing. The tremolo effect can also be used by itself to create other sounds, like bells or gongs.
In this tutorial, you’ll use the AUv3 plugin format to explore the basics of creating an audio processing app extension that you can use in GarageBand, Cubasis, AUM and other hosts that support AUv3 plugins.
And if you’re looking for more inspiration for your own AUv3 effects, check out our tutorial on how to create an amp simulator with iOS AudioKit.
Open Xcode and select File > New > Project from the menu bar or press ⌘+Shift+N. Select Audio Unit Application Extension under iOS > Frameworks & Libraries section and click Next.
Name your product TremoloPod and set the language as Swift. Select where you want to save your project and click Create.
The tremolo effect adds vibrato to a guitar sound and it’s pretty easy to implement on iOS with the TremoloPod app.
Use the Rate knob to change the number of modulation cycles per second. The Depth control adjusts how far the input signal will be modulated by this effect and you can use the Mix knob to determine how much of the original signal is mixed with the tremolo effect.
The shape control lets you adjust the type of wave used for modulation from a triangle (most subtle) to a square wave (most extreme).
If you have an Apple Watch, you can also control this app on your wrist!
To create a tremolo effect, the signal is modulated by an LFO (Low Frequency Oscillator), which can be used to generate a square wave with a controllable duty cycle. This waveform passes through a low-pass filter and then is mixed with the dry signal. At this point you can use the LFO to control the volume of your signal, and thus create the tremolo effect.
The speed at which the LFO oscillates determines the speed of the tremolo effect. The amplitude of the LFO determines how deep or shallow the modulation is, and thus how strong or weak the effect will sound.
The TremoloPod app allows you to control all these parameters in real time using a simple interface that makes it easy to adjust each parameter as you play. In just a few clicks, you can adjust all types of effects and create an almost infinite number of different sounds. With this app, you can easily add vibrato or tremolo to any instrument, including guitar and bass.
The tremolo effect, in a nutshell, is a pitch and volume modulation. The pitch is modulated by the LFO to create a vibrato effect, while the amplitude (volume) is modulated by the same LFO but with larger depth.
When you hear tremolo, you often do not notice the effect itself. Tremolo tends to sound like “wah-wah” or “wow-wow” if applied to guitar or vocal tracks and if it’s heavily applied it can sound like vibrato or chorus.
Tremolo effects are created using an LFO (low frequency oscillator) that modulates both the amplitude and frequency of an audio signal. The strength of these modulations is controlled by two parameters: rate and depth.
The rate parameter controls how fast the LFO oscillates. If you set it to a low value (e.g., 1 Hz), you will get more of a “vibrato” effect since the sound will be periodically reduced and raised in volume. If you set it to high values (e.g., 15+ Hz), it will start sounding like “wah wah wah” or “wow wow wow” when applied