KQ Audio Player vs PX1 FM Synth

KQ Audio Player is a simple yet feature-rich music player, designed to provide greater comfort in your music life. The app is also good for practice. You can change the playback rate and pitch. How about using this app as your everyday music player? Key Features - Music playback: Enjoy smooth and seamless playback of your favorite songs - Shake to change the playback speed. - Library folders: You can freely specify folders for song libraries. - Playlist creation: Easily create and manage your own playlists. - Per-device settings: Allow you to set the playback mode, delay, and volume offset for individual devices. When headphones are connected, its configured settings are applied automatically. - Playback speed control: Adjust the tempo of tracks as needed - Pitch adjustment (Available when not using the system default engine) - Marker Function: Set markers at any point in a track (Available when not using the system default engine) - A-B Repeat Between Markers (Available when not using the system default engine) - Equalizer function (Available when not using the system default engine) - Play Audio Files: Supports playback of .m4a, .mp3, .flac, .wav, .mid files (Available when not using the system default engine). - MIDI file playback (Available when not using the system default engine) - Single-track playback mode: Automatically stops after playing one song - Per-song custom settings: Save individual equalizer and playback speed settings (Globe/3-Sliders Icon) - The volume in this app is independent from the device's volume (Only when not using the system default engine) - Hi-res support: Up to 192kHz (Only when not using the system default engine) Settings: - Playback Rate - Pitch Adjustment* - Repeat Mode - Volume (Independent from Device Settings*) - Song Libraries* (Specify folders) - Equalizer* - Motion* - Reduce Stereo Width* - Time Interval between Songs* - Start Delay* - Sample Rate* - Ping before Playing* - Keep Audio Session Active* - Prevent Sleep - Skip Time - Sort Order - Show Wave View* - Use File Name as Title* - Detect Infinite Loop* (for MIDI files) - Use System Engine *Available when not using system engine. Important Notes - Using the system default engine allows playback of DRM-protected and online music, but some features will be restricted. By default, the system engine is disabled. - Changing the playback speed, changing the pitch, using the equalizer, or MIDI file playback will increase battery consumption. - Settings cannot be fully restored from backups, and exporting playlists to other devices is not supported. I recommend that you use the system music app's playlists. This app and its description contain automatically generated text. This app does not contain any songs.

PX1 is a dual-engine FM synthesizer inspired by the classic 6-operator digital synths of the 1980s. Each engine features six operators, 32 algorithms, and full envelope control — giving you everything from glassy electric pianos and punchy basses to evolving pads and metallic bells. What makes PX1 special is the dual-engine architecture. Two completely independent FM voices run side by side. Copy one engine to the other, make subtle changes, then use the Spread control to place them across the stereo field. The result is a lush, wide sound that a single FM engine simply cannot produce. FEATURES • Two independent 6-operator FM engines • 32 classic FM algorithms • Per-operator envelopes (4 rates + 4 levels) • Per-operator pan for detailed stereo placement • Five macro knobs — Brightness, Touch, Attack, Decay, Spread • Copy/Paste between engines for instant layering • Random patch generator exploring the classic FM sound palette • Built-in reverb (Size, Damp, Amount) • Mono, Legato, and Portamento modes • LFO with triangle, saw, square, and random waveforms • Pitch bend range and transpose controls • Key velocity sensitivity per operator • Keyboard rate scaling and level scaling • Operator Key Sync on/off for consistent or organic attacks AUv3 PLUGIN PX1 works as a standalone instrument and as an Audio Unit v3 plugin. Load it directly inside GarageBand, Logic Pro, AUM, Cubasis, or any AUv3-compatible host. Full parameter automation is supported — record knob movements in your DAW and play them back. DESIGNED FOR MUSICIANS The interface stays close to the original FM programming model that experienced synthesists know, while macro controls make it approachable for anyone. Turn one knob and shape the entire sound; dive into individual operators when you want surgical control. LISTEN TO EXAMPLES Hear PX1 in action — sound demos are available at: https://soundcloud.com/peter-sj-gren/sets/px1-demo Requires no in-app purchases. No subscriptions. No ads. No tracking.