:jddlmZddlmZmZmZddlmZmZddl m Z ddl m Z ddl mZmZddlmZmZdd giZesd gZGd de Zy ) )Sequence)AnyOptionalUnion)Tensortensor)$perceptual_evaluation_speech_quality)Metric)_MATPLOTLIB_AVAILABLE_PESQ_AVAILABLE)_AX_TYPE_PLOT_OUT_TYPE!PerceptualEvaluationSpeechQualitypesqz&PerceptualEvaluationSpeechQuality.plotc eZdZUdZeed<eed<dZeed<dZeed<dZ eed<d Z e ed <d Z e ed < dd e dede deddf fd ZdededdfdZdefdZddeeeedfdeedefdZxZS)ra Calculate `Perceptual Evaluation of Speech Quality`_ (PESQ). It's a recognized industry standard for audio quality that takes into considerations characteristics such as: audio sharpness, call volume, background noise, clipping, audio interference etc. PESQ returns a score between -0.5 and 4.5 with the higher scores indicating a better quality. This metric is a wrapper for the `pesq package`_. Note that input will be moved to ``cpu`` to perform the metric calculation. As input to ``forward`` and ``update`` the metric accepts the following input - ``preds`` (:class:`~torch.Tensor`): float tensor with shape ``(...,time)`` - ``target`` (:class:`~torch.Tensor`): float tensor with shape ``(...,time)`` As output of `forward` and `compute` the metric returns the following output - ``pesq`` (:class:`~torch.Tensor`): float tensor of PESQ value reduced across the batch .. hint:: Using this metrics requires you to have ``pesq`` install. Either install as ``pip install torchmetrics[audio]`` or ``pip install pesq``. ``pesq`` will compile with your currently installed version of numpy, meaning that if you upgrade numpy at some point in the future you will most likely have to reinstall ``pesq``. .. caution:: The ``forward`` and ``compute`` methods in this class return a single (reduced) PESQ value for a batch. To obtain a PESQ value for each sample, you may use the functional counterpart in :func:`~torchmetrics.functional.audio.pesq.perceptual_evaluation_speech_quality`. Args: fs: sampling frequency, should be 16000 or 8000 (Hz) mode: ``'wb'`` (wide-band) or ``'nb'`` (narrow-band) keep_same_device: whether to move the pesq value to the device of preds n_processes: integer specifying the number of processes to run in parallel for the metric calculation. Only applies to batches of data and if ``multiprocessing`` package is installed. kwargs: Additional keyword arguments, see :ref:`Metric kwargs` for more info. Raises: ModuleNotFoundError: If ``pesq`` package is not installed ValueError: If ``fs`` is not either ``8000`` or ``16000`` ValueError: If ``mode`` is not either ``"wb"`` or ``"nb"`` Example: >>> from torch import randn >>> from torchmetrics.audio import PerceptualEvaluationSpeechQuality >>> preds = randn(8000) >>> target = randn(8000) >>> pesq = PerceptualEvaluationSpeechQuality(8000, 'nb') >>> pesq(preds, target) tensor(2.2885) >>> wb_pesq = PerceptualEvaluationSpeechQuality(16000, 'wb') >>> wb_pesq(preds, target) tensor(1.6805) sum_pesqtotalFfull_state_updateis_differentiableThigher_is_bettergplot_lower_boundg@plot_upper_boundfsmode n_processeskwargsreturnNc rt|d i|ts td|dvrt d|||_|dvrt d|||_t|ts|dkrt d|||_ |jdtd d |jd tdd y)NzPerceptualEvaluationSpeechQuality metric requires that `pesq` is installed. Either install as `pip install torchmetrics[audio]` or `pip install pesq`.)i@i>z:Expected argument `fs` to either be 8000 or 16000 but got )wbnbz;Expected argument `mode` to either be 'wb' or 'nb' but got rzCExpected argument `n_processes` to be an int larger than 0 but got rgsum)defaultdist_reduce_fxr) super__init__r ModuleNotFoundError ValueErrorrr isinstanceintr add_stater)selfrrrr __class__s l/home/mcse/projects/srt_converter/srt-converter-venv/lib/python3.12/site-packages/torchmetrics/audio/pesq.pyr&z*PerceptualEvaluationSpeechQuality.__init__bs "6"%^  ] "YZ\Y]^_ _ | #Z[_Z`ab b +s+ q0@bcnbopq q& z6#;uM wq %Hpredstargetc2t|||j|jd|jj |j j }|xj |jz c_|xj|jz c_y)z*Update state with predictions and targets.FN) r rrrtordevicer!rnumel)r,r0r1 pesq_batchs r.updatez(PerceptualEvaluationSpeechQuality.update|sl9 6477DIIud6F6F "T]] ! ! "  ))  j&&(( r/c4|j|jz S)zCompute metric.)rr)r,s r.computez)PerceptualEvaluationSpeechQuality.computes}}tzz))r/valaxc&|j||S)abPlot a single or multiple values from the metric. Args: val: Either a single result from calling `metric.forward` or `metric.compute` or a list of these results. If no value is provided, will automatically call `metric.compute` and plot that result. ax: An matplotlib axis object. If provided will add plot to that axis Returns: Figure and Axes object Raises: ModuleNotFoundError: If `matplotlib` is not installed .. plot:: :scale: 75 >>> # Example plotting a single value >>> import torch >>> from torchmetrics.audio import PerceptualEvaluationSpeechQuality >>> metric = PerceptualEvaluationSpeechQuality(8000, 'nb') >>> metric.update(torch.rand(8000), torch.rand(8000)) >>> fig_, ax_ = metric.plot() .. plot:: :scale: 75 >>> # Example plotting multiple values >>> import torch >>> from torchmetrics.audio import PerceptualEvaluationSpeechQuality >>> metric = PerceptualEvaluationSpeechQuality(8000, 'nb') >>> values = [ ] >>> for _ in range(10): ... values.append(metric(torch.rand(8000), torch.rand(8000))) >>> fig_, ax_ = metric.plot(values) )_plot)r,r:r;s r.plotz&PerceptualEvaluationSpeechQuality.plotsLzz#r""r/))NN)__name__ __module__ __qualname____doc__r__annotations__rboolrrrfloatrr*strrr&r7r9rrrr rr> __classcell__)r-s@r.rrs9v M#t##t#!d!"e"!e!  I II I  I  I4)F)F)t)**&#fhv&6<=&#(S[J\&#hv&#r/N)collections.abcrtypingrrrtorchrr"torchmetrics.functional.audio.pesqr torchmetrics.metricr torchmetrics.utilities.importsr r torchmetrics.utilities.plotr r__doctest_requires____doctest_skip__rr$r/r.rRsF%'' S&Q@;fXF@AQ#Q#r/