HotPaw apps for iPhone and iPad

HotPaw Productions has been developing unique apps for the iPhone and iPod Touch (and now the iPad) since the Apple iTunes App Store first opened.

Music Apps

Many professional musicians prefer strobe tuners. The HotPaw Productions waterfall strobe tuners are far more accurate than any guitar tuner with just a needle indicator, or even with an LED strobe. With an animated waterfall strobe graphic, even slight differences, between the pitch which the microphone detects, and the ideal pitch frequency, will immediately cause the waveforms to waver and move sideways as they cascade down the strobe window, in real-time.

inTuna Strobe Guitar Tuner

The inTuna Strobe Guitar Tuner for iPhone (available from Apple's iTunes App Store) is optimized for 6-string guitar tuning, and includes both a single strobe and multi-strobe mode. It supports 8 popular alternate guitar tunings, as well as a configurable concert A=440Hz frequency.

inTuna Strobe Guitar Tuner HD

The inTuna Strobe Guitar Tuner HD is optimized for iPad (and iPad 2). It includes the capability of programming multiple sets of custom per-string intonations.

Sing-inTuna

Sing-inTuna (available from Apple's iTunes App store). Quickly visualize whether you are singing or playing on key and on pitch in a scrolling graph. This app will draw the note you are singing on a musical grand staff, and color code your pitch accuracy (green line for on pitch, blue for sharp, red for flat).

iChromatic HD

The iChromatic HD Strobe Tuner for iPad allows you to view 12 simultaneous strobe tuners with strobes for all 12 notes of the chromatic scale, easily visible on a piano key graphic, for fast, accurate and noise resistant tuning.

Talking Tuner

The Blind Talking Tuner uses speech synthesis to speak whether a note the iPhone hears is in tune or not. Useful when you can't see your iPhone display for any reason.

A440

The inTuna A440 Strobe Tuner (available from Apple's iTunes App store) is a Free strobe tuner for exactly one note: Concert A = 440 Hz. Try it, and see if you agree that strobe tuners are the fastest and most accurate way to tune a musical instrument.

Music Pitch Spectrum

Music Pitch Spectrum is a real-time 12-th octave audio spectrum viewer for the iPad, which allows one to visualize where a sound, and it's harmonics, fall on the musical pitch scale.

Dance Metronome/BPM

Dance Metronome/BPM is an extremely (sub-millisecond) accurate metronome as well as a BPM/MPM measuring app calibrated for strict tempo ballroom dancing.

iAutoharp

The iAutoharp is an easy and fun to play virtual instrument for your iPhone or iPad. Just tap a chord button and strum to hear the sweet sounds of a 37 string musical instrument.

Music Piano Roll Spectrograph

Music Spectrograph is a Universal app (for both iPhone and iPad) now available from the iTunes App Store.

Visualize sounds, almost as they might appear in a piano roll MIDI music editor. Visualize speech and singing. See musical notes (plus all their overtones) graphed to assist with music transcription. The HotPaw Musical Piano Roll Spectrograph creates a scrolling pitch-centered 12th-octave spectrogram in real-time from mic input. You can also pause audio recording to scroll back to review the previous 4 minutes of spectrogram history.
PLEASE NOTE: For many musical sounds, a spectrogram will show LOTS of overtones and harmonics, not just the note pitch frequency or frequencies.
(screenshot)

Morse Code Apps

Learn and work with CW, a very traditional amateur radio mode of communication.

Morse Decoder

The HotPaw Morse Code Decoder (in the iOS App Store) is a Universal app for both iPhone and iPad which translates Morse Code or audio CW sound into text using DSP signal analysis techniques. Includes a spectrum viewer and an optional narrow band audio filter. Now supports decoding up to 80 WPM. The HotPaw Morse CW Decoder app has been featured in an issue of ARRL Contest Update.

LED Flashlight & Morse Code Decoder

LED Morse Decoder and Flash Commicator (available from Apple's iOS App Store) can flash Morse Code using the camera flash on the iPhone 4 and decodes Morse Code flashes, as viewed through a virtual camera viewfinder.

Text2Morse

Text2Morse translates text into high quality Morse Code sounds. Configurable WPM and tone frequency.

Morse2Text

The Morse2Text converts Morse code tapping on your iPhone touchscreen into text. You can use this app to input text to your iPhone without looking at the display. Copy the text to use in another app, or email it directly from the app. Both straight key and an iambic keying mode are supported.

MorseTest

MorseTest generates 5 character random letter groups from a configurable letter set and at a configurable WPM to help one learn to hear and receive Morse Code.

Morse Code Key

MorseKey is a Free app available from the App store. Tap and it will generate an audio tone. Both straight key and an iambic keying mode are supported.

Basic Programming Apps

HotPaw Basic for iOS

HotPaw Basic (in the iOS App Store) Write and run Old-Fashioned Basic programs on your iPhone, iPod Touch or iPad.

Some Preliminary Documentation on HotPaw Basic for iOS

See the nicholson.com Basic Programming Page for lots of information about programming using the Basic Programming Language.

Camera Apps

Say Color

The Free Say Color app uses the iPhone's camera input to detect and speak the name of the color in the center of a virtual camera viewfinder.

HotPaw apps for Mac OS X

iChromatic Strobe Tuner

The HotPaw iChromatic Strobe Tuner for the Mac in the Mac App Store.

Morse Decoder

The HotPaw CW Morse Decoder for the Mac in the Mac App Store.

Older Links

Old HotPaw Web Site with a little information on some old obsolete PalmOS apps.

Obsolete PalmOS/PalmPilot apps and info

Basic Programming Info

About

HotPaw Productions also provides iPhone/iOS app development and DSP consulting services for the most technically challenging problems. HotPaw Productions was founded by Ron Nicholson, who was a member of the original Macintosh, Amiga, and N64 design teams, as well as one of the first PalmOS developers. Enterprise iOS apps co-architected by Mr. Nicholson include Wyse PocketCloud, which has been among the very Top Grossing apps in the Business category of the iTunes App store.

Credits

Many of the HotPaw icons were created by LizDesign

Support

A collection of Readme's and Help files for most HotPaw Production iOS apps.

Contact Hotpaw Productions

Disclaimers

HotPaw Production iOS apps are distributed in the hope that they might be useful, but WITHOUT ANY WARRANTY OF ANY KIND; not even the implied warranty of MERCHANTABILITY or FITNESS for ANY PARTICULAR PURPOSE.

Apple, iTunes, App Store, iPhone and iPad are registered trademarks of Apple Inc. in the U.S. and/or other countries.