o piQ@s,ddlZddZddZddZdd ZdS) NcCsttjt|dddS)z Calculates the root mean square. Based on https://github.com/iver56/audiomentations/blob/master/audiomentations/core/utils.py F)dimkeepdim)torchsqrtmeansquare)samplesr S/home/ubuntu/.local/lib/python3.10/site-packages/torch_audiomentations/utils/dsp.py calculate_rmssr cCs|d|d}|S)a Given the Root Mean Square (RMS) of a clean sound and a desired signal-to-noise ratio (SNR), calculate the desired RMS of a noise sound to be mixed in. Based on https://github.com/Sato-Kunihiko/audio-SNR/blob/8d2c933b6c0afe6f1203251f4877e7a1068a6130/create_mixed_audio_file.py#L20 :param clean_rms: Root Mean Square (RMS) - a value between 0.0 and 1.0 :param snr: Signal-to-Noise (SNR) Ratio in dB - typically somewhere between -20 and 60 :return: r ) clean_rmssnr noise_rmsr r r calculate_desired_noise_rms s rcCs d|dS)Nr rr )decibelsr r r #convert_decibels_to_amplitude_ratios rcCsdt|S)Nr)rlog10)amplitude_ratior r r #convert_amplitude_ratio_to_decibelssr)rr rrrr r r r s