Abstract: Audio systems and methods are provided that receive a sound management input signal as a reference signal to remove related content from a microphone signal in, e.g., an automotive hands-free system. The sound management signal may provide an acoustic augmentation to reduce, enhance, or create an acoustic effect, e.g., of an engine, motor, or other operating components. A signal processor receives the sound management signal and the microphone signal, and reduces or removes the sound management signal components from the microphone signal.

Abstract: Audio systems and methods are provided that receive a sound management input signal as a reference signal to remove related content from a microphone signal in, e.g., an automotive hands-free system. The sound management signal may provide an acoustic augmentation to reduce, enhance, or create an acoustic effect, e.g., of an engine, motor, or other operating components. A signal processor receives the sound management signal and the microphone signal, and reduces or removes the sound management signal components from the microphone signal.

Abstract: A method for modifying sound in a motor vehicle that has an audio system. The audio system has at least one electro-acoustic transducer that creates sound from audio signals. An initial audio signal that represents a particular vehicle sound is provided, where the initial audio signal has a plurality of signal properties. A modified audio signal is then provided to the audio system, based on at least one current motor vehicle operating condition. The modified audio signal includes at least one modified signal property that differs from that of the initial audio signal. The at least one signal property is modified by a modification process that relates to a vehicle operating condition.

Abstract: A method for modifying sound in a motor vehicle that has an audio system. The audio system has at least one electro-acoustic transducer that creates sound from audio signals. An initial audio signal that represents a particular vehicle sound is provided, where the initial audio signal has a plurality of signal properties. A modified audio signal is then provided to the audio system, based on at least one current motor vehicle operating condition. The modified audio signal includes at least one modified signal property that differs from that of the initial audio signal. The at least one signal property is modified by a modification process that relates to a vehicle operating condition.

Abstract: A method for modifying sound in a motor vehicle that has an audio system. The audio system has at least one electro-acoustic transducer that creates sound from audio signals. An initial audio signal that represents a particular vehicle sound is provided, where the initial audio signal has a plurality of signal properties. A modified audio signal is then provided to the audio system, based on at least one current motor vehicle operating condition. The modified audio signal includes at least one modified signal property that differs from that of the initial audio signal. The at least one signal property is modified by a modification process that relates to a vehicle operating condition.

Abstract: Systems and method for reading data samples in reverse group order are described herein according to various embodiments of the present disclosure. In one embodiment, a method for reading data samples in a memory is provided, wherein the data samples correspond to an operand of a vector operation, the data samples are grouped into a plurality of different groups, and the different groups are spaced apart by a plurality of addresses in the memory. The method comprises reading the groups of data samples in reverse group order, and, for each group, reading the data samples in the group in forward order.

Abstract: Systems and methods for generating twiddle factors are described herein according to various embodiments of the present disclosure. In one embodiment, a method for twiddle factor generation comprises generating a first twiddle phase, wherein the first twiddle phase is from a set of radix-M1 twiddle phases, and M1 is an integer. The method also comprises converting the first twiddle phase into a second twiddle phase, wherein the second twiddle phase is from a set of radix-M2 twiddle phases, and M2 is an integer that is different from M1. The method further comprises generating a twiddle factor based on the second twiddle phase.

Abstract: Systems and method for reading data samples in reverse group order are described herein according to various embodiments of the present disclosure. In one embodiment, a method for reading data samples in a memory is provided, wherein the data samples correspond to an operand of a vector operation, the data samples are grouped into a plurality of different groups, and the different groups are spaced apart by a plurality of addresses in the memory. The method comprises reading the groups of data samples in reverse group order, and, for each group, reading the data samples in the group in forward order.