Category: Main Multimedia Audio StereoTool 6.10

StereoTool 6.10

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What is Stereo Tool? Stereo Tool is a professional low latency audio processor that is used by hundreds of FM, AM and web radio stations all over the world, by musicians who use it to process their recordings, and by hundreds of thousands of people who use the free versionĀ¹ to listen to music on their PC. Stereo Tool makes your music sound more consistent, powerful, clear and detailed than ever before - regardless of whether you play it through low end or high end equipment. Stereo Tool can make recordings sound equal and consistent in volume and sound color, bring out the details, and increase existing stereo effects. It can repair 'broken' stereo images which often occur on cassette tapes, vinyl and cheap CD's, which normally causes havoc when playing it on a mono system, headphones or a system which includes a stereo widener. Special support (not free) is included for radio stations: Much louder output levels, FM pre-emphasis, stereo coding and RDS coding for FM stations, and protection of highs against distortion caused by lossy compression for web radio stations. The processing latency can be reduced as low as 12 ms, at the cost of reduced fidelity. At the maximum quality the processing latency is 93 ms. Audio processing features Currently, Stereo Tool offers the following sound processing options: Hiss removal filter Stereo Tool contains a powerful hiss reduction filter that has almost no effect on the rest of the sound. Especially useful when playing older songs or when a lot of volume compression is used. FM hiss removal filter This is useful when the input signal comes from an FM transmitter, for example when re-broadcasting the sound from an FM station. 10-band multiband compressor / limiter / clipper If one song contains a lot of bass, and the next contains a lot of treble, this filter can make them sound equal. Older or bad quality recordings can be made to sound closer to the sound of modern CD's, which generally sounds much better on a wide range of playback equipment. Phasing error (AZIMUTH) correction filter. Old tape recordings and many cheap CDs often suffer from severe phasing errors. These phasing errors can make listening very unpleasant, and when the phasing error changes over time the sound can seem to "float" around you. It can also cause severe artifacts when converting the sound to mono or when playing it on a surround system. This filter automatically detects and repairs such errors. Stereo booster This filter increases the existing stereo sound, unless it was already very loud, which makes the sound much fuller. It can be configured to not alter the total sound content. Stereo to mono conversion Converts stereo to mono without removing sounds that normally cancel out each other. So the mono sound still sounds just as full and powerful as the original stereo sound. Bass booster This filter increases the bass level without increasing the maximum amplitude of the bass. Final limiter The Stereo Tool Final Limiter can transparantly remove short spikes in the signal - so with nearly no effect on the sound. Loudness filter This filter can make sounds up to 12 dB louder, without causing higher amplitude peaks in the signal, with little effect on the sound. Especially useful for radio stations that want to sound loud. Lowpass filter The extremely steep phase linear lowpass filter can be used to cut off frequencies that cannot be broadcast (streaming audio, FM transmitter, AM transmitter). FM transmitter features Stereo Tool can generate an MPX signal, including stereo and RDS data, which can be sent to the FM transmitter using a good quality 192 kHz capable sound card. No separate hardware stereo coder or hardware RDS encoder is needed. The following FM transmitter specific options are provided: FM pre-emphasis filter Pre-emphasizes the sound, which is needed for FM transmissions. All the audio processing steps will take the pre-emphasis into account, meaning that pre-emphasizing does not cause spikes in the signal, if the Final limter or Loudness is used. Stereo Tool can output both the pre-emphasized and the de-emphasized sound. FM stereo encoder The software FM stereo encoder generates a high quality MPX signal including stereo information, which can be fed directly into a (mono) FM transmitter. FM RDS encoder The software RDS encoder enables broadcasting RDS texts without using a separate hardware RDS encoder. Composite limiter A composite limiter is available in Stereo Tool to squeeze out the last 0.5 dB of extra loudness with no effect on the quality. The stereo pilot tone and RDS signal are NOT affected by this filter, so the MPX signal that comes out complies perfectly to the standards.

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VersionDescriptionLatest RatingLatest Wine version testedTest resultsComments
6.10version from website. 22 march 2011Silver1.3.1610