U 9%e,@sddlZddlZddlZddlmZmZmZmZmZm Z ddl m Z ddl m Z mZejdkrbeZeddZed(d d Zed)ddZed*ddZed+ddZed,ddZedd Zed!d"Zed#d$Zed-d&d'ZdS).N) db_to_float ratio_to_dbregister_pydub_effect make_chunksaudioopget_min_max_value)split_on_silence)TooManyMissingFramesInvalidDuration)rc sn|j}|}fdd|D}|}t|D]2\}}t|D]\}}|||} ||| <qDq0||S)Ncsg|] }|qSr ).0 channel_seg filter_fnr L/var/www/html/Darija-Ai-API/env/lib/python3.8/site-packages/pydub/effects.py sz5apply_mono_filter_to_each_channel..)channels split_to_monoget_array_of_samples enumerate_spawn) segrZ n_channelsZ channel_segsZout_dataZ channel_irZsample_isampleindexr rr!apply_mono_filter_to_each_channels  r皙?cCs8|j}|dkr|S|jt| }t||}||S)za headroom is how close to the maximum volume to boost the signal up to (specified in dB) r)maxmax_possible_amplituderrZ apply_gain)rZheadroomZpeak_sample_valZ target_peakZ needed_boostr r r normalize#s  r ?c sd|}|dkr&t|d||nt|t||d|}t|d}t||}t|dkr~td|||j|8|d}fdd|ddD}|d }|ddD]}|j||d }q||7}|S) N?@rzwCould not speed up AudioSegment, it was too short {2:0.2f}s for the current settings: {0}ms chunks at {1:0.1f}x speedupcsg|]}|d qSNr )rchunkZms_to_remove_per_chunkr rrWszspeedup..r crossfade)intminrlen ExceptionformatZduration_secondsappend) rZplayback_speed chunk_sizer,Zatkchunks last_chunkoutr)r r*rspeedup4s* r7dcCsf||krtdt||||}|d}t|s:|ddS|d}|ddD]}|j||d}qN|S)Nz)padding cannot be longer than silence_lenr&rrr+)r r r/r2)rZ silence_lenZsilence_threshpaddingr4r,r)r r r strip_silenceas r<4@@I@csjt|tj|dfdd}fdd}g}d}j|d} j|d} ttD]} || } dd||| } | | }| | }| kr|| kr||7}t|| }n||8}t|d }| }|dkrt |j t| }| |qhj d |d S) aL Keyword Arguments: threshold - default: -20.0 Threshold in dBFS. default of -20.0 means -20dB relative to the maximum possible volume. 0dBFS is the maximum possible value so all values for this argument sould be negative. ratio - default: 4.0 Compression ratio. Audio louder than the threshold will be reduced to 1/ratio the volume. A ratio of 4.0 is equivalent to a setting of 4:1 in a pro-audio compressor like the Waves C1. attack - default: 5.0 Attack in milliseconds. How long it should take for the compressor to kick in once the audio has exceeded the threshold. release - default: 50.0 Release in milliseconds. How long it should take for the compressor to stop compressing after the audio has falled below the threshold. For an overview of Dynamic Range Compression, and more detailed explanation of the related terminology, see: http://en.wikipedia.org/wiki/Dynamic_range_compression )mscs||jSr()Zget_sample_slicerms)Zframe_i) look_framesrr rrms_atsz&compress_dynamic_range..rms_atcs"|dkr dSt|}t|dS)Nr)rr)rBdb) thresh_rmsr rdb_over_thresholds z1compress_dynamic_range..db_over_thresholdrErr$rdata)rrr- frame_countxranger.rZ get_framermul sample_widthr2rjoin)r thresholdratioZattackreleaserDrHoutputZ attenuationZ attack_framesZrelease_framesiZrms_nowZmax_attenuationZattenuation_incZattenuation_decframer )rCrrGrcompress_dynamic_rangess4       rWrrcCs~|dkr&t|j|jd}|j|dS|jdkr>|\}}ntdt|jd|dkrf| }n| }| ||SdS) z channels- specifies which channel (left or right) to reverse the phase of. 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Panning does not alter the *perceived* loundness, but since loudness is decreasing on one side, the other side needs to get louder to compensate. When panned hard left, the left channel will be 3dB louder. rYr$zCpan_amount should be between -1.0 (100% left) and +1.0 (100% right)r%rN) ValueErrorrabsrapply_gain_stereo)rZ pan_amountZ max_boost_dbZboost_dbZ boost_factorZ reduce_factorZ reduce_dbr r rpans    rwrEc Cs|jdkr|}}n|jdkr*|\}}t|}t|}t|j|j|}t||jdd}t|j|j|}t||jdd}t|||j} |j | dd|jddS)z left_gain - amount of gain to apply to the left channel (in dB) right_gain - amount of gain to apply to the right channel (in dB) note: mono audio segments will be converted to stereo rr&r)rZ frame_width)rKZ overrides) rrrrrNrZrOZtostereoaddr) rZ left_gainZ right_gainr^r_Z l_mult_factorZ r_mult_factorZ left_dataZ right_datarTr r rrv;s     rv)r)r!r"r#)r8r9r:)r=r>r?r@)rX)rErE)sysr`rcutilsrrrrrrZsilencer exceptionsr r version_inforerMrr r7r<rWr\rorsrwrvr r r rs6      ,  L