Using the DSP to maximize music enjoyment – Alango Technologies

Sunday 2/18/24 01:00am
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Posted By Sarah McMurray
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Snapdragon and Qualcomm branded products are products of
Qualcomm Technologies, Inc. and/or its subsidiaries.

With smartphones, portable speakers, earbuds and in-vehicle audio, it keeps getting easier to listen to your music anywhere you want to. But what about making the sound in harmony with real listener preference?

Alango Technologies Ltd. has more than 20 years of experience in digital signal processing (DSP) software for speech, hearing and audio applications. The Israel-based company’s software is used in devices like hands-free car kits, conference systems, speakerphones, Bluetooth headsets, True Wireless Stereo (TWS) earbuds, hearing enhancement products and voice-controlled devices.

SonicVibrance, Alango’s DSP software for enhancing the audio experience, is now available on the Qualcomm® QCC5100™ series of system-on-chips (SoC) for automotive audio, TWS earbuds, headsets and Bluetooth speakers.

SonicVibrance – Focusing on the way humans experience sound

SonicVibrance is a suite of integrated DSP technologies that lets listeners transcend the limitations of audio hardware. As shown below, it processes audio in three ways.

Stereo Normalizer

The Stereo Normalizer component of SonicVibrance dynamically adjusts stereo image width to optimize binaural performance for a harmonious music experience with both speakers and headphones. It analyzes the audio content, then increases stereo width of “flat” recordings while conversely narrowing excessively wide stereo. The result is equally pleasant through loudspeakers or headphones.

Stereo Normalizer provides the freedom to choose your desired stereo effect. For instance, with a small portable speaker, you can expand the soundstage, creating a sense that the drivers are further apart. If you're using headphones or earplugs, you can narrow the stereo image to replicate the feel of a live soundstage. The best part? You won't need to adjust settings based on the audio content. Stereo Normalizer adapts in real time, analyzing the audio's spatial characteristics, and adjusting the stereo image to match your personal preference, whether that means widening it for some content or narrowing it for others.

Spectral Compander

Listening to music in silence and noise offers contrasting experiences. In quiet settings with high-quality speakers, spectral components may have varying loudness. However, in noisy or distracting conditions, some music elements may get masked. The Spectral Compander bridges these differences, making all components perceptible. It dynamically amplifies weak frequency regions to increase the perceived brightness of audio. The result is livelier, more vibrant music with enhanced details. Additionally, it's beneficial for speech applications, improving voice intelligibility by boosting missing high-frequency components.

Bass Enhancer

The human auditory system appreciates deep, rich bass because it creates physical sensations and vibrations that can be pleasurable and immersive, making us feel more connected to the music or audio content.

Reproducing low frequencies poses challenges for portable devices due to power and size constraints. The compromise is never perfect, but Alango's Bass Enhancer DSP software technology provides a solution. It can create the impression of stronger bass without the distortion caused by adjusting equalizer settings. Whether in TWS earbuds, headphones, or portable speakers, Alango's Bass Enhancer enhances your audio experience and captivates the listener.

Alango's SonicVibrance Now Available on Qualcomm QCC5100 Series

Alango is one of the longest-standing members of the Voice and Music Extension Program in the Qualcomm Advantage Network. The company has ported its sound processing software to Qualcomm Technologies, Inc. computational platforms and it now offers SonicVibrance on the QCC5100 series of SoCs. That makes the audio-enhancing technology available to manufacturers of automotive audio systems and true wireless earbuds, headsets and speakers.

For many people it is second nature to listen to the car stereo system while driving. SonicVibrance is designed to enhance the listening experience on the road. It goes beyond the old approaches of equalizing frequencies and compressing dynamic range to truly enhance in-vehicle audio by normalizing stereo, reducing spectral variances and correcting bass.

Next steps

Hear how SonicVibrance can use the DSP to mirror human binaural hearing in audio samples ranging from Johann Strauss II to Bodies Without Organs.

Then, you can install the SonicVibrance package as a Winamp DSP/Effect plug-in and try it in your own applications.

Snapdragon and Qualcomm branded products are products of Qualcomm Technologies, Inc. and/or its subsidiaries. Qualcomm Advantage Network is a program of Qualcomm Technologies, Inc. and/or its subsidiaries.