Audio

Audio Spectrum Analyzer - OscilloMeter - Audio Spectrum Analyzer for Real-time, FFT, OscilloScope, Frequency counter, voltmeter, noise and distortion meter, phase shift meter. Multi-Tone Sound Frequency Sweep Generator. White, pink noise.

Audio spectrum analyzer - Analyzes audio from 10 Hz to 20 kHz, input from microphone or wave file, Variable sample rates (8000 Hz, 11025 Hz, 22050 Hz, 44100 Hz) Variable transform sizes (1k, 2k, 4k, 8k) Upper and lower limits adjustable Continuous, averaged, peak hold

Soundcard Audio Tools and Toys - Soundcard audio tools and toys, experimental ideas and utilities. Signal Generator, Frequency-counter / instrument-tuner, Real-time Spectrum Analyser

Setting audio on Yaesu FT-2000 - Yaesu FT-2000 Audio Settings - How to make the FT-2000 sound clear and clean by LA5MDA

Yaesu FT-1000D HiFi SSB Audio and Mods - Using Hi-Fi Audio with FT-1000. Includes many FT-1000D modifications too by K6JRF

HI FI Audio in SSB - How to produce great audio using your SSB rig and outboard equipment. Step by Step instructions.

Bluetooth Audio and Amateur Radio - Bluetooth headsets are very common with cell phone users. As such, many amateurs may already own a Bluetooth (BT) headset. So why not use it with amateur radio?

Audio Preamp - Easy circuit that provide good gain to weak audio signals

Build An Audio Speech Processor - When one operates at low power on SSB, speech processing becomes almost essential to get through the QRM. The circuit is a low cost speech processor that will perform well with a minimum of construction effort.

Audio spectrum analyzer  ^pop - Analyzes audio from 10 Hz to 20 kHz, input from microphone or wave file, Variable sample rates (8000 Hz, 11025 Hz, 22050 Hz, 44100 Hz) Variable transform sizes (1k, 2k, 4k, 8k) Upper and lower limits adjustable Continuous, averaged, peak hold

Audio Spectrum Analyzer - OscilloMeter  ^pop - Audio Spectrum Analyzer for Real-time, FFT, OscilloScope, Frequency counter, voltmeter, noise and distortion meter, phase shift meter. Multi-Tone Sound Frequency Sweep Generator. White, pink noise.

12W amplifier - ON6MU 12 Watt amplifier schematic

A fool-proof VOX - A circuit which had been used in many other application before. The configuration described here is optimized for IPHONE/radio operation.

A Potpourri of Audio Amplifiers - A collection of audio amplifier projects by N1HFX

A simple VOX circuit - Here is a 3 transistors 6 diodes circuit that is a Voice Operated Tx PTT control as well as an ANTI VOX circuit to stop mis-operation from Rx noise by G8MNY

Audio Compressor for SSB - Build an audio Processor and clipper optimised for SSB transmitter

Audio CW Filter - A very effective AF Adaptor, with built-in noise blanker and 30 Hz CW filter modules by PA0LQ

Audio filters and speakers - Review of common audio speakers for mobile setups

Audio Preamp - Easy circuit that provide good gain to weak audio signals

Audio processor for SSB transceiver - This circuit consists of microphone amplifier and a high pass filter. Suitable to improve signal readability.

Bass EQ Pre Amp - A Bass Eq Pre amplifier for high impedance PU by ON6MU

Bluetooth Audio and Amateur Radio - Bluetooth headsets are very common with cell phone users. As such, many amateurs may already own a Bluetooth (BT) headset. So why not use it with amateur radio?

Bose Headphone Mod - Adding a boom mike to Bose Quiet Comfort (QC-1) noise-cancelling headphones

Build An Audio Speech Processor - When one operates at low power on SSB, speech processing becomes almost essential to get through the QRM. The circuit is a low cost speech processor that will perform well with a minimum of construction effort.

Control unit for receive audio - A master control unit for receive audio

Design Guidelines for JFET Audio Preamplifier Circuits - Design Guidelines for JFET Audio Preamplifier Circuits By Mike Martell N1HFX

Designing Op Amp Audio PreAmplifiers - Design guidelines for Op Amp audio preamplifier circuits by Mike Martell N1HFX

Elecraft DSP audio settings - DSP Settings and Mic Connections for Elecraft K3

Enhanced SSB Audio - K4QKY Presentation about SSB Audio, what's it all about and why the controversy

ESSB enhanced SSB - About SSB Audio by N4KC

FT-726 AUDIO Modifications - Throughput improvement for the FT726R - Tapr PSK modem

FT-897D Audio processing and ALC operation - Audio processing and ALC in the FT-897D

Ham Radio Blue Tooth Interface - A Simple Ham Radio Blue Tooth Interface by K7SFN

Headphone amplifier - A headphones splitter box with amplification by Ian White, M0BXR

Heil Microphones DSP Settings - How adjust DSP settings for your trasmitter when using Heil Sound microphones

HI FI Audio in SSB - How to produce great audio using your SSB rig and outboard equipment. Step by Step instructions.

HI-FI Audio with Kenwood TS-850SAT - Setup guide for DSP-100 and TS-850

Hi-FI Audio with Yaesu FT-2000 - Setup for the Yaesu FT-2000 by John K3UR

Icom DSP Settings and Pin Connections - ICOM audio DSP settings and pin connections for heil sound headphones

Integrated Circuit Audio Amplifiers - Circuit designs for IC audio amplifiers by N1HFX

Kenwood DSP Settings and pin connections - Kenwood radios audio DSP settings for Heil Sound headphones

KG9OM Audio Processing setup - Audio processing chain at KG9OM

Legendary microphones for ham radio - Graph of the frequency response of some of the legendary microphones favoured by radio hams

Low Pass Audio Filter - 440 Hertz peaked low pass audio filter experiments

Low Power LF Amplifier - ON6MU Low Power amplifier

Mic Pre Ampllifier - A microphone preamplifier schematic for hand-helds by ON6MU

Microphone sensivity calculators - Mic online calculator , Microphone Dynamic Range Calculator, Microphone Sensitivity Calculator

No More Splatter - Improving your own signal quality by GM3SEK

Noise Cancelling Headphones - Review of common noise cancelling headphones for under $50.00 by WA4PGM

NU9N ESSB AM Hi-Fi ham radio audio setup - NU9N recomendations for processed SSB, ESSB, AM Hi-Fi, Mid-Fi, Amateur Radio Audio Setup for transmiters, receivers and Amateur Radio Recording/Playback

Setting audio on Yaesu FT-2000 - Yaesu FT-2000 Audio Settings - How to make the FT-2000 sound clear and clean by LA5MDA

Soundcard Audio Tools and Toys - Soundcard audio tools and toys, experimental ideas and utilities. Signal Generator, Frequency-counter / instrument-tuner, Real-time Spectrum Analyser

Speech Intelligibility - Articles published by the Radio Society of Great Britain, basic principles, construction of a simple equaliser circuit

Transistor Audio Preamplifier Circuits - Design Guidelines for Bipolar Transistor Audio Preamplifier Circuits By Mike Martell N1HFX

Yaesu DSP Settings and Pin Connections - Yaesu DSP audio settings for Heil Sound headphones

Yaesu DSP Settings for Heil Microphones - To achieve maximum audio quality it is important to adjust the DSP settings of your transmitter when using Heil microphones.

Yaesu FT-1000D HiFi SSB Audio and Mods - Using Hi-Fi Audio with FT-1000. Includes many FT-1000D modifications too by K6JRF