Smart automatic audio recording leveler

TL;DR: In this paper, computer-based systems and methods for analyzing a plurality of audio files corresponding to text-based news stories and received from audio file creators are configured to compare quality and accuracy metrics of individual audio files against corresponding quality and/or accuracy thresholds.

TL;DR: In this paper, a bitstream multiplexer combines the encoded digital audio recording with the sequence of encoder DRC gain values, an indication of the selected DRC characteristic, and an indication as metadata associated with the encoded audio recording.

TL;DR: In this article, an audio signal processing method and an electronic device for supporting the same is presented. But the method is not suitable for the use of a speaker and the audio signal can not be transmitted through a speaker.

TL;DR: In this paper, a method for automatically adjusting the volume of a program source to pulse encoding modulation data is presented. But the method is not suitable for high and low output volumes.

TL;DR: This thesis provides new representations of audio signals that allow for both very low bit rate audio data compression and high quality compressed domain processing and modiications.

TL;DR: In this article, a coded signal conveys encoded audio information and metadata that may be used to control the loudness and dynamic range of the audio information during its playback, if the values for these metadata parameters are set incorrectly, annoying fluctuations in loudness during playback can result.

TL;DR: In this paper, the volume control is determined by an automatic volume control gain which is calculated as a function of the automatic gain control gain, a weighted dynamic range compression gain, and a weighted constant gain.

Abstract: A compander system for audio signal processing, in which two 90* phase separated signals are generated from an input audio signal. Each phase separated signal is processed through a converter which provides an output signal logarithmically related to the instantaneous rms value of the corresponding phase separated signal. The output currents from both converters are proportional to the square of the input currents, hence are summed to yield a virtually ripple free output. This summed output is then scaled and applied to control the gain of a variable gain amplifier which either compresses or expands the original input audio signal according to the gain of the latter amplifier. Thus, the expansion or compression is a continuous linear process proportioned to the rms value of the input audio signal.