Problem wih the sound volume of an album

Plex Labs
1

I have a problem with the sound volume of an album in the new music player.
With the old plexamp v1 or plexweb it works fine. But with plexamp v3 and the plex version of ios, I have to turn up the volume to maximum to be able to hear something.

This is the information of one of the songs on the album with the problem.

<MediaContainer size="1" allowSync="1" identifier="com.plexapp.plugins.library" librarySectionID="11" librarySectionTitle="Música" librarySectionUUID="34ae125c-37b6-49fd-9072-281e3bb2a599" mediaTagPrefix="/system/bundle/media/flags/" mediaTagVersion="1587038219">
<Track ratingKey="357158" key="/library/metadata/357158" parentRatingKey="357157" grandparentRatingKey="357073" guid="com.plexapp.agents.plexmusic://gracenote/track/145696983-4C53F59928C7F478DD1CA1638DA053DD/145696984-7CF004D6B811A537AE03F7CBA76C3F83?lang=es" parentGuid="com.plexapp.agents.plexmusic://gracenote/album/054C53F508AF28D7/145696983-4C53F59928C7F478DD1CA1638DA053DD?lang=es" grandparentGuid="com.plexapp.agents.plexmusic://gracenote/artist/0534E568114CF24A?lang=es" type="track" title="Tranquilize" grandparentKey="/library/metadata/357073" parentKey="/library/metadata/357157" librarySectionTitle="Música" librarySectionID="11" librarySectionKey="/library/sections/11" grandparentTitle="The Killers" parentTitle="Sawdust" summary="" index="1" parentIndex="1" ratingCount="1742330" viewCount="4" lastViewedAt="1587722804" thumb="/library/metadata/357157/thumb/1475788827" art="/library/metadata/357073/art/1569372860" parentThumb="/library/metadata/357157/thumb/1475788827" grandparentThumb="/library/metadata/357073/thumb/1569372860" grandparentArt="/library/metadata/357073/art/1569372860" duration="225227" addedAt="1324131258" updatedAt="1521133097">
<Media id="961246" duration="225227" bitrate="283" width="200" height="199" aspectRatio="1.33" audioChannels="2" audioCodec="mp3" videoCodec="mjpeg" videoResolution="sd" container="mp3">
<Part accessible="1" exists="1" id="980855" key="/library/parts/980855/1324131258/file.mp3" duration="225227" file="/volume1/music/iTunes Music/The Killers/Sawdust/01 Tranquilize.mp3" size="7995640" container="mp3" deepAnalysisVersion="4" requiredBandwidths="281,281,281,281,281,281,281,281">
<Stream id="2001177" streamType="2" selected="1" codec="mp3" index="0" channels="2" bitrate="283" albumGain="-51.00" albumPeak="15606.759766" albumRange="0.000000" audioChannelLayout="stereo" bitrateMode="vbr" duration="225227" endRamp="-51.00 0.18;-24.89 2.18;-14.54 2.28;-11.01 2.38;-8.16 2.58;-5.95 4.68;-2.85 6.18;0.90 6.88;3.32 9.08;6.13 33.78;" gain="-51.00" loudness="-8.86" lra="11.74" peak="0.979034" requiredBandwidths="281,281,281,281,281,281,281,281" samplingRate="44100" startRamp="-51.00 0.00;-25.88 0.50;-16.47 0.60;-13.19 0.70;-11.25 0.80;-8.19 2.60;-3.95 9.40;-2.43 9.50;0.15 22.10;4.05 22.40;6.18 53.10;" displayTitle="Desconocido (MP3 Stereo)"/>
<Stream id="8624946" key="/library/streams/8624946" streamType="4" codec="lrc" format="lrc" minLines="3" provider="com.plexapp.agents.lyricfind" timed="1" displayTitle="Desconocido (LRC Externo)"/>
<Stream id="8624947" key="/library/streams/8624947" streamType="4" codec="txt" format="txt" provider="com.plexapp.agents.lyricfind" displayTitle="Desconocido (TXT Externo)"/>
</Part>
</Media>
<Mood id="35941" filter="mood=35941" tag="Alienante"/>
<Mood id="35942" filter="mood=35942" tag="Melancólica"/>
<Extras size="0"> </Extras>
</Track>
</MediaContainer>
2

For some reason, the loudness analysis has determined the top volume of this album as being incredibly high ( albumPeak="15606.759766" These numbers are supposed to be <=1.0). This indicates that at least one of the tracks has a glitch or distortion in it.
You can verify this theory by (temporarily) disabling ‘Loudness Leveling’ in Plexamp’s Settings - Playback.

Please verify that all tracks of this album are playing with no glitches whatsoever from start to finish. You might be able to find the corrupt file and replace (or delete) it.
To speed things up, look at the XML of every track and find the one which shows a value of >1.0 in its peak="xxxxxxxxx" property (as opposed to albumPeak).

3

Thanks!

4

If you cannot find a corrupt file, I’d be interested in a copy of the audio files. For analysis and potential fixing of the loudness analysis code.

5

It seems the problem is with m4a files, send by msg the file

<MediaContainer size="1" allowSync="1" identifier="com.plexapp.plugins.library" librarySectionID="11" librarySectionTitle="Música" librarySectionUUID="34ae125c-37b6-49fd-9072-281e3bb2a599" mediaTagPrefix="/system/bundle/media/flags/" mediaTagVersion="1587038219">
<Track ratingKey="357155" key="/library/metadata/357155" parentRatingKey="357141" grandparentRatingKey="357073" guid="com.plexapp.agents.plexmusic://gracenote/track/117094326-B10F563B02C1571E69FEA9CFD759B6F3/117094340-3E0622CE6449B57D2FE1AF452A6F6BB0?lang=es" parentGuid="com.plexapp.agents.plexmusic://gracenote/album/05B10F5606FAB7B6/117094326-B10F563B02C1571E69FEA9CFD759B6F3?lang=es" grandparentGuid="com.plexapp.agents.plexmusic://gracenote/artist/0534E568114CF24A?lang=es" type="track" title="All The Pretty Faces (bonus track)" grandparentKey="/library/metadata/357073" parentKey="/library/metadata/357141" librarySectionTitle="Música" librarySectionID="11" librarySectionKey="/library/sections/11" grandparentTitle="The Killers" parentTitle="Sam's Town" summary="" index="14" parentIndex="1" ratingCount="5412" year="1999" thumb="/library/metadata/357141/thumb/1475788797" art="/library/metadata/357073/art/1569372860" parentThumb="/library/metadata/357141/thumb/1475788797" grandparentThumb="/library/metadata/357073/thumb/1569372860" grandparentArt="/library/metadata/357073/art/1569372860" duration="286441" addedAt="1343081032" updatedAt="1521133056">
<Media id="961243" duration="286441" bitrate="260" width="500" height="500" aspectRatio="1.33" audioChannels="2" audioCodec="aac" videoCodec="png" videoResolution="480" container="mp4" optimizedForStreaming="1" audioProfile="lc" has64bitOffsets="0">
<Part accessible="1" exists="1" id="980852" key="/library/parts/980852/1343081032/file.m4a" duration="286441" file="/volume1/music/iTunes Music/The Killers/Sam's Town/14 All the Pretty Faces [Bonus Track].m4a" size="9927999" audioProfile="lc" container="mp4" deepAnalysisVersion="4" has64bitOffsets="0" optimizedForStreaming="1" requiredBandwidths="2147483647,2147483647,2147483647,2147483647,2147483647,2147483647,2147483647,2147483647">
<Stream id="2001178" streamType="2" selected="1" default="1" codec="aac" index="0" channels="2" bitrate="260" language="English" languageCode="eng" albumGain="-51.00" albumPeak="3912.096191" albumRange="8.632282" audioChannelLayout="stereo" bitrateMode="vbr" codecID="40" duration="286441" endRamp="51.00 0.16;" gain="-51.00" loudness="54.41" lra="0.00" peak="3912.096191" profile="lc" requiredBandwidths="257,257,257,257,257,257,257,257" samplingRate="44100" startRamp="-51.00 0.00;-22.40 0.50;-15.00 0.60;-11.28 0.70;-8.01 0.80;-5.88 0.90;-2.21 8.40;0.15 8.50;3.15 8.70;6.05 15.50;" streamIdentifier="1" displayTitle="English (AAC Stereo)"/>
</Part>
</Media>
<Extras size="0"> </Extras>
</Track>
</MediaContainer>
6

This topic was automatically closed 90 days after the last reply. New replies are no longer allowed.