Amateur Radio Voice Tools and Digital Voice Software
Find software for voice processing, digital voice modes, and audio utilities for ham radio communication.
Operators often use specialized voice tools to enhance their amateur radio activity, whether for improving audio quality, enabling digital voice modes, or managing recordings. These software applications interface with a station's transceiver and sound card, providing capabilities beyond standard analog voice operation. They are particularly useful for hams experimenting with new modes or seeking to optimize their signal on crowded bands.
This category features various utilities, including speech pre-processors like Voice Shaper, designed to optimize SSB audio for better clarity and punch. Hams can also find digital voice codecs such as Codec 2 and FDMDV, which enable low-bandwidth, high-quality digital voice communication over HF and VHF. Additionally, tools like Vox Actuated Recorder help manage audio recordings by activating only when a signal is present, useful for monitoring nets or specific frequencies without recording silence.
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Codec2 is an open source low bit rate speech codec designed for communications quality speech at around 2400 bit/s. Applications include low bandwidth HF/VHF digital radio. -
IPSound is a Free application for audio exchange client to client over a TCP/IPv4 network (Lan or Internet). The main purpose for the existence of IP Sound is to provide low quality audio 8-16kHz, with low latency for use together with remote control software for "ham" radio amateur equipment. IP-Sound is developed by SM5VXC. -
This program descrambles band inverted encrypted transmissions, usually found on VHF/UHF. It uses a NCO (numerical controlled oscillator) to re-produce the originally inverted audio band. Use it only if legally permitted in your country. I assume no responsabilities deriving from its use. Standard disclaimer applies -
Voice Shaper is a freeware windows speech pre-processor for SSB transceivers. It receives the voice signal from the microphone connected to the soundcard, and sends the processed audio back to the soundcard in real time by Alex Shovkoplyas, VE3NEA -
Vox Recorder is a Windows utility wich allows recording sound from an audio source only when an audio signal is present; its main purpose is to avoid the recording of the silence eventually present at the input. -
This is a computer program for Amateur Radio transmission and reception using a computer and radio transceiver The program equips your computer with a one sentence at a time chat-mode for operation on the HF bands. You use it in the same way as you would Skype or cell-phone TXTing. This facilitates rapid-fire QSOs and especially makes nets easier by ZL2AFP