TV Voice Amplifier or TV Hearing Amplifier

Two terms, one family of devices

Both terms refer to devices designed to address the same basic problem. The TV is several meters away, and the sound loses clarity as it travels that distance. Turning up the volume alone won’t solve the problem. Both types of devices therefore pick up the sound from the TV and transmit it to where you’re sitting. The setup is the same: a base station connected to the TV and a receiver where you’re sitting.

The hearing amplifier as a general term

"Audio amplifier" is the broader term. It describes any device that picks up the TV audio, amplifies it, and delivers it closer to the listener. This includes portable speakers as well as headphone solutions with their own transmitter. What these devices have in common is that they tap into the TV's audio and allow the volume to be adjusted independently of the TV's volume.

The major advantage of these solutions is that the sound reaches the listener from just a few centimeters away. As a result, significantly more direct sound reaches the ear than it would from two to four meters or more, which is why a lower volume is sufficient in this case.

The speech amplifier as a special case

The speech enhancer does the same thing and goes one step further. It modifies the signal before it reaches the listener. The frequency range of the human voice is boosted, while music, effects, and ambient sounds are attenuated. This shifts the balance between speech and background noise. As a result, not everything becomes louder at once; instead, the voice stands out.

This is exactly where the practical difference lies. Turning up the volume boosts dialogue and explosions equally. Speech processing specifically boosts what is essential for understanding. The balance between speech and other sounds is the key factor in the intelligibility of dialogue in media content.

An Overview of the Differences

The following comparison shows where the two types of devices overlap and where they differ. The first aspects are the same for both, since the speech amplifier shares the characteristics of a hearing aid.

The first three aspects are identical because the speech amplifier belongs to the category of hearing amplifiers. The difference arises only when the audio signal is modified.

Inconsistent Use of Terms in the Market

In product descriptions, both terms are often used interchangeably. That’s not entirely wrong. A device with speech processing can rightly be called a hearing amplifier because it meets the requirements of that category. Conversely, the term “speech amplifier” is sometimes used for devices that merely make the sound louder—which is actually incorrect. However, there is no officially defined definition for either term.

In practical terms, this means that the terms “TV speech amplifier” and “TV hearing amplifier” alone don’t really tell you much about their specific features. It’s more helpful to ask whether the device has adjustable filters for speech or just a volume control.

OSKAR serves both purposes

OSKAR It falls into both categories: The device delivers sound to the listening position and also optimizes it for speech.

The sound at the listening position

A base station is connected to the TV, either to the optical output or the headphone jack. From there, the audio is transmitted wirelessly to the portable device, which is placed next to the armchair or on the table. The volume is controlled on the device itself, independently of the TV.

This fulfills the basic function of a hearing amplifier. The TV can be turned down or left on at a lower volume for others in the room, while you can enjoy the right volume from your seat. The base station also serves as a charging cradle, so the device charges between TV-watching sessions.

Three filtering levels for dialogs

OSKAR s also processes the signal. Three voice filter settings can be selected on the device to emphasize voices over music and sound effects. The best setting depends on the input and your personal preference, and can be changed while the device is in use. For example, news programs and talk shows usually require a different setting than a movie with a dense soundtrack.

It is this processing that transforms the TV audio amplifier into a TV speech amplifier. This is why both terms apply to the OSKAR . Accordingly, the filter levels have their own separate control on the device, distinct from the volume control.

Find the Right Function

Regardless of the name, the focus is on solving the problem. There are two distinct situations, each of which places different demands on the device.

Sound is too quiet at my seat

If the sound is generally clear but simply too quiet at the seat, the basic function is sufficient. This is typical in large rooms or for seats that are far from the device. The most important thing here is that the sound is transmitted with minimal loss and can be adjusted independently. Additionally, since this is a common occurrence, it’s worth noting that there may be delays between the video and audio. Wireless connections via a dedicated base station have lower latency than a Bluetooth connection.

Unclear Dialogue

If individual words remain unclear even though the overall volume is appropriate, turning up the volume further won’t help. In that case, the problem lies in the balance between speech and music and sound effects. This is exactly where speech processing comes in. A high power rating (watts) says nothing about how clearly speech will ultimately come through.

Since a device with voice processing can do both, it’s usually the better choice. If you then realize that you only need to compensate for the distance, you can leave the filters set to the lowest level or turn them off.