TfxEcho

Ryo Togawa · Music

4.7 12 ratings $4.99

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Chart standing · US

Not currently charting in this storefront.

What changed · US

Listing changes AppTracker has observed for this app in this storefront — new versions, price moves, rating shifts, and store copy.

Sep 14, 2026
Promotional text Removed
Sep 14, 2026
Price change 1.99 USD → 4.99 USD
Aug 28, 2026
Promotional text “*** VAPolyPro Introduction Sale 60% OFF until Sep 13. (Regular Price $4.99) ***”
Aug 28, 2026
Price change 4.99 USD → 1.99 USD

Price & rating history · US

Reconstructed from the listing changes AppTracker has observed in this storefront. A field is charted once it has changed more than once, and each line starts at the value it moved from.

Price history in USD over the observed period. 2 3 4 5 Aug 25 Sep 7 Sep 20 Oct 3 Oct 15

Price · 4.99 USD now · 2 changes on record

Ratings breakdown · US

The star breakdown behind this app's rating in this storefront.

5★ 92% 11
4★ 0% 0
3★ 0% 0
2★ 0% 0
1★ 8% 1

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About

TfxEcho is an echo effect AudioUnit Extension plugin. It uses delay lines which are inspired by BBD (bucket brigade device). BBD is used in various analog delay unit and is known for its warm and dark sound. The delay line uses fixed length buffer and an artificial clock to sample input signal in variable sampling rate. When the delay time is changed, the delay line can produce pitch change effect which is similar to the behavior of the BBD based analog delay unit. The delay line is inspired by BBD, but it is not emulation of the any particular BBD. Unlike the typical BBD based delay unit, frequency range of the delay line is not limited. The delay line is capable to capture signal in higher frequency up to about 22KHz. Features AudioUnit Extension - Delay Time: From 20 ms to 1200 ms - Feedback: From 0 % to 100 % - Adjustable lowpass filter and high-pass filter. - Modulation rate: From 0.01 Hz to 10 Hz - Modulation width: From 0 ms to +/- 10 ms - Delay time can be synced to tempo provided by the host application. Host Application Host application uses system audio input as an audio source and processed audio signal is routed to the system audio output.

What's new · 1.9

Version 1.9 contains improvements and bug fixes. - Support iOS 26 and iPadOS 26.

Details

DeveloperRyo Togawa
ReleasedJul 2020
UpdatedJan 2026
Version1.9
Size1.4 MB
RequiresiOS 13.5 or later
Age rating4+
LanguagesEnglish
Price$4.99
Categories Music
Bundle IDcom.rtmusicsoftware.TfxEcho